10,000+ results returned
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Title: Lawrence, MA (Census Block Groups, 1990)
Contributors:- Polygon data
- 2002
Summary: 1990 census data for the City of Lawrence. Data is aggregated at the block group level
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Title: Lawrence, MA (Census Block Groups, 2000)
Contributors:- Polygon data
- 2002
Summary: The 2000 censuss data of Lawrence, MA, at the block group level
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Title: Boston, MA (US Census Blocks 2000)
Contributors:- Polygon data
- 2000
Summary: These data are a selection of geographic and cartographic information from the 1998 TIGER/Line files detailing blocks. This dataset includes geographic blocks, tabulation block, and block number record locations.
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Title: Atlanta, GA (Cities and Municipalities, 2000)
Contributors:- Polygon data
- 2000
Summary: This layer was derived from the 2000 TIGER files that are based on the boundary and annexation data provided by local governments. It has been updated in some areas by ARC. In order to get a more accurate depiction of this Theme, it may be necessary to remove "island" polygons, those areas contained within larger polygons that are not part of incorporated municipalities. This can be accomplished by querying for NAME = " (blank) to identify those records in the NAME data field which contain no values.The complete collection of Atlanta region geospatial datasets is available on CD in the GIS Lab at Rotch Library with the following call number: CDROM G3924.A8 2002.A7.
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Title: Massachusetts (ZCTA - 5 digit zip code tabulation area, 2000)
Contributors:- Polygon data
- 2000
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Title: Census Blocks, San Joaquin County, California, 2010
Contributors:- Polygon data
- 2015
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile containing 2010 U.S. Census blocks for San Joaquin County, California was extracted from the U.S. Census Bureau's Master Address File/Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Census Blocks are statistical areas bounded on all sides by visible features, such as streets, roads, streams, and railroad tracks, and/or by nonvisible boundaries such as city, town, township, and county limits, and short line-of-sight extensions of streets and roads. Census blocks are relatively small in area; for example, a block in a city bounded by streets. However, census blocks in remote areas are often large and irregular and may even be many square miles in area. A common misunderstanding is that data users think census blocks are used geographically to build all other census geographic areas, rather all other census geographic areas are updated and then used as the primary constraints, along with roads and water features, to delineate the tabulation blocks. As a result, all 2010 Census blocks nest within every other 2010 Census geographic area, so that Census Bureau statistical data can be tabulated at the block level and aggregated up to the appropriate geographic areas. Census blocks cover all territory in the United States, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands). Blocks are the smallest geographic areas for which the Census Bureau publishes data from the decennial census. A block may consist of one or more faces. In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles. San Joaquin County (Calif.). Community Development Department. (2015). Census Blocks, San Joaquin County, California, 2010. San Joaquin County Community Development Department. Available at: http://purl.stanford.edu/gd100jk2257. The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: World Census IPC Demographics : ESRI Data & Maps 2008
Contributors:- Polygon data
- 2008
- Not owned by MIT (Owned by Harvard)
- United States. Bureau of the Census
- Environmental Systems Research Institute (Redlands, Calif.)
- Harvard Geospatial Library
Summary: This polygon layer joins the ESRI World Census IPC Demographics attribute table to the ESRI Data & Maps 2008 : World Countries datalayer, to enable spatial displaying of World Census IPC Demographics attributes. World Census IPC Demographics (table) represents a vast amount of recent demographic information for the countries recognized by the U.S. State Department.
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Title: New Orleans, Louisiana Census tracks and blocks, 1960 (Image 1 of 2) (Raster Image)
Contributors:- Raster data
- 2007
- Not owned by MIT (Owned by Harvard)
Summary: This layer is a georeferenced raster image of the historic paper map entitled: New Orleans, Louisiana, by census tracts and blocks: 1960. It was published by The Census Bureau ca. 1960. Scale [ca. 1:17,500]. This layer is image 1 of 2 total images of the two sheet source map. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Louisiana State Plane Coordinate System, South NAD83 (in Feet) (Fipszone 1702). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, or other information associated with the principal map. This map shows features such as Census block and tract numbers and boundaries, roads, canals, drainage, and more. Includes inset and legend. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.
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Title: New Orleans, Louisiana Census tracks and blocks, 1960 (Image 2 of 2) (Raster Image)
Contributors:- Raster data
- 2007
- Not owned by MIT (Owned by Harvard)
Summary: This layer is a georeferenced raster image of the historic paper map entitled: New Orleans, Louisiana, by census tracts and blocks: 1960. It was published by The Census Bureau ca. 1960. Scale [ca. 1:17,500]. This layer is image 2 of 2 total images of the two sheet source map. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Louisiana State Plane Coordinate System, South NAD83 (in Feet) (Fipszone 1702). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, or other information associated with the principal map. This map shows features such as Census block and tract numbers and boundaries, roads, canals, drainage, and more. Includes inset and legend. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.
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Title: Census Tracts in the New York, N.Y., SMSA. Inset 1B. New York County, 1973
Contributors:- Raster data
- 1970
- Not owned by MIT (Owned by Columbia)
Summary: This is a scanned version of the paper map entitled: Census Tracts in the New York, N.Y., SMSA. Inset 1B. New York County. The map was scanned at 300 dots per inch and is in the TIFF format.
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Title: Electric companies map 1959
Contributors:- Not specified
- 1960
- Not owned by MIT (Owned by Rutgers University)
Summary: New Jersey state map divided into territories covered by the electric companies operating in the state during 1959.
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Title: Map of Indian Territory and Oklahoma
Contributors:- Not specified
- 1890
- Not owned by MIT (Owned by University of Minnesota)
Summary: Relief shown by hachures.; Panel title.; At head of map: Eleventh Census of the United States.; Includes text and list of railroads. 56 x 75 centimeters Scale approximately 1:760,320; 12 miles to 1 inch General Map Collection
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Title: Census Feature Lines: Solano County, California, 2014
Contributors:- Line data
- 2014
- Not owned by MIT (Owned by Stanford)
Summary: This polyline shapefile depicts centerlines for an extract of selected geographic and cartographic information, including water, railroad and road features, for the County of Solano, California from the United States Census Bureau Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB) for 2014. The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Edge refers to the linear topological primitives that make up MTDB. This "All Lines" shapefile contains linear features such as roads, railroads, and hydrography. Additional attribute data associated with the linear features found in the "All Lines" shapefile are available in relational (.dbf) files that users must download separately. The "All Lines" shapefile contains the geometry and attributes of each topological primitive edge. Each edge has a unique TIGER/Line identifier (TLID) value. This layer is part of a collection of GIS data produced by Solano County, California. In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data. Solano Regional GIS Consortium. (2015). Census Feature Lines: Solano County, California, 2014. Solano Regional GIS Consortium. (2015). County Boundary (Line): Solano County, California, 2015. Solano County, California. Available at: http://purl.stanford.edu/qf751fs3441. United States Census Bureau TIGER/Line Shapefiles: http://www.census.gov/geo/maps-data/data/tiger-line.html The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The horizontal spatial accuracy information present in these files is provided for the purposes of statistical analysis and census operations only. No warranty, expressed or implied is made with regard to the accuracy of the spatial accuracy, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau, specifically as to the spatial or attribute accuracy of the data. The TIGER/Line Shapefiles may not be suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Census Feature Lines: San Mateo County, California, 2014
Contributors:- Line data
- 2014
- Not owned by MIT (Owned by Stanford)
Summary: This polyline shapefile depicts an extract of selected geographic and cartographic information, including water, railroad and road features, for the County of San Mateo from the United States Census Bureau Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB) for 2014. The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Edge refers to the linear topological primitives that make up MTDB. This "All Lines" shapefile contains linear features such as roads, railroads, and hydrography. Additional attribute data associated with the linear features found in the "All Lines" shapefile are available in relational (.dbf) files that users must download separately. The "All Lines" shapefile contains the geometry and attributes of each topological primitive edge. Each edge has a unique TIGER/Line identifier (TLID) value. This layer is part of a collection of GIS data for San Mateo County, California. In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data. County of San Mateo Information Services Department. (2014). Census Feature Lines: San Mateo County, California, 2014. San Mateo County. Available at: http://purl.stanford.edu/sj820kk2763 The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The horizontal spatial accuracy information present in these files is provided for the purposes of statistical analysis and census operations only. No warranty, expressed or implied is made with regard to the accuracy of the spatial accuracy, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau, specifically as to the spatial or attribute accuracy of the data. The TIGER/Line Shapefiles may not be suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Census Feature Lines: Santa Clara County, California, 2014
Contributors:- Line data
- 2014
- Not owned by MIT (Owned by Stanford)
Summary: This polyline shapefile depicts centerlines for an extract of selected geographic and cartographic information, including water, railroad and road features, for the County of Santa Clara, California from the United States Census Bureau Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB) for 2014. The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Edge refers to the linear topological primitives that make up MTDB. This "All Lines" shapefile contains linear features such as roads, railroads, and hydrography. Additional attribute data associated with the linear features found in the "All Lines" shapefile are available in relational (.dbf) files that users must download separately. The "All Lines" shapefile contains the geometry and attributes of each topological primitive edge. Each edge has a unique TIGER/Line identifier (TLID) value. This layer is part of a collection of GIS data for Santa Clara County, California. In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data. Santa Clara County, California. Planning Office. (2014). Census Feature Lines: Santa Clara County, California, 2014. Santa Clara County, Calif. Planning Office. Available at: http://purl.stanford.edu/dd432cj9123. United States Census Bureau TIGER/Line Shapefiles: http://www.census.gov/geo/maps-data/data/tiger-line.html The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The horizontal spatial accuracy information present in these files is provided for the purposes of statistical analysis and census operations only. No warranty, expressed or implied is made with regard to the accuracy of the spatial accuracy, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau, specifically as to the spatial or attribute accuracy of the data. The TIGER/Line Shapefiles may not be suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Census Feature Lines: Santa Cruz County, California, 2014
Contributors:- Line data
- 2014
- Not owned by MIT (Owned by Stanford)
Summary: This polyline shapefile contains an extract of selected geographic and cartographic information, including water, railroad and road features, for the County of Santa Cruz, California from the United States Census Bureau Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB) for 2014. The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Edge refers to the linear topological primitives that make up MTDB. This "All Lines" shapefile contains linear features such as roads, railroads, and hydrography. Additional attribute data associated with the linear features found in the "All Lines" shapefile are available in relational (.dbf) files that users must download separately. The "All Lines" shapefile contains the geometry and attributes of each topological primitive edge. Each edge has a unique TIGER/Line identifier (TLID) value. In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data. County of Santa Cruz Information Services Department. (2014). Census Feature Lines: Santa Cruz County, California, 2014. Santa Cruz County, California. Available at http://purl.stanford.edu/dr314sw1449. United States Census Bureau TIGER/Line Shapefiles: http://www.census.gov/geo/maps-data/data/tiger-line.html The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The horizontal spatial accuracy information present in these files is provided for the purposes of statistical analysis and census operations only. No warranty, expressed or implied is made with regard to the accuracy of the spatial accuracy, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau, specifically as to the spatial or attribute accuracy of the data. The TIGER/Line Shapefiles may not be suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Census Feature Lines: Santa Cruz County, California, 2013
Contributors:- Line data
- 2013
- Not owned by MIT (Owned by Stanford)
Summary: This polyline shapefile contains an extract of selected geographic and cartographic information, including water, railroad and road features, for the County of Santa Cruz, California from the United States Census Bureau Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB) for 2013. The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Edge refers to the linear topological primitives that make up MTDB. This "All Lines" shapefile contains linear features such as roads, railroads, and hydrography. Additional attribute data associated with the linear features found in the "All Lines" shapefile are available in relational (.dbf) files that users must download separately. The "All Lines" shapefile contains the geometry and attributes of each topological primitive edge. Each edge has a unique TIGER/Line identifier (TLID) value. This layer is part of a collection of GIS data created for Santa Cruz County, California. In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data. County of Santa Cruz Information Services Department. (2013). Census Feature Lines: Santa Cruz County, California, 2013. Santa Cruz County, California. Available at http://purl.stanford.edu/jw393bd1690. United States Census Bureau TIGER/Line Shapefiles: http://www.census.gov/geo/maps-data/data/tiger-line.html The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The horizontal spatial accuracy information present in these files is provided for the purposes of statistical analysis and census operations only. No warranty, expressed or implied is made with regard to the accuracy of the spatial accuracy, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau, specifically as to the spatial or attribute accuracy of the data. The TIGER/Line Shapefiles may not be suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Census Feature Lines: Santa Clara County, California, 2013
Contributors:- Line data
- 2013
- Not owned by MIT (Owned by Stanford)
Summary: This polyline shapefile depicts centerlines for an extract of selected geographic and cartographic information, including water, railroad and road features, for the County of Santa Clara, California from the United States Census Bureau Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB) for 2013. The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Edge refers to the linear topological primitives that make up MTDB. This "All Lines" shapefile contains linear features such as roads, railroads, and hydrography. Additional attribute data associated with the linear features found in the "All Lines" shapefile are available in relational (.dbf) files that users must download separately. The "All Lines" shapefile contains the geometry and attributes of each topological primitive edge. Each edge has a unique TIGER/Line identifier (TLID) value. This layer is part of a collection of GIS data for Santa Clara County, California. In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data. Santa Clara County, California. Planning Office. (2013). Census Feature Lines: Santa Clara County, California, 2013. Santa Clara County, Calif. Planning Office. Available at: http://purl.stanford.edu/bf809kq6695. United States Census Bureau TIGER/Line Shapefiles: http://www.census.gov/geo/maps-data/data/tiger-line.html The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The horizontal spatial accuracy information present in these files is provided for the purposes of statistical analysis and census operations only. No warranty, expressed or implied is made with regard to the accuracy of the spatial accuracy, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau, specifically as to the spatial or attribute accuracy of the data. The TIGER/Line Shapefiles may not be suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Census Feature Lines: San Mateo County, California, 2013
Contributors:- Line data
- 2013
- Not owned by MIT (Owned by Stanford)
Summary: This polyline shapefile depicts an extract of selected geographic and cartographic information, including water, railroad and road features, for the County of San Mateo from the United States Census Bureau Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB) for 2013. The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Edge refers to the linear topological primitives that make up MTDB. This "All Lines" shapefile contains linear features such as roads, railroads, and hydrography. Additional attribute data associated with the linear features found in the "All Lines" shapefile are available in relational (.dbf) files that users must download separately. The "All Lines" shapefile contains the geometry and attributes of each topological primitive edge. Each edge has a unique TIGER/Line identifier (TLID) value. This layer is part of a collection of GIS data for San Mateo County, California. In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data. County of San Mateo Information Services Department. (2013). Census Feature Lines: San Mateo County, California, 2013. San Mateo County. Available at: http://purl.stanford.edu/yv460sy1226 The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The horizontal spatial accuracy information present in these files is provided for the purposes of statistical analysis and census operations only. No warranty, expressed or implied is made with regard to the accuracy of the spatial accuracy, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau, specifically as to the spatial or attribute accuracy of the data. The TIGER/Line Shapefiles may not be suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.