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Census geographic files
Click on a tab below to access geographic data. Some of the data files are large and may require additional time to download.
Census 2020
Select 2020 Census geographic files derived from Census 2020 TIGER/Line files.
Census 2010
Select 2010 Census geographic files derived from Census 2010 TIGER/Line files. Includes select population and housing variables from the 2010 Census.
Census 2000
Select 2000 Census geographic files derived from Census 2010 TIGER/Line files. Includes select population and housing variables from the 2000 Census.
Supplemental information
Reference information
- OFM’s standard projection and datum for geospatial data layers is State Plane Washington South, North American Datum 1983 HARN in units of US feet (EPSG: 2927).
- Geographic codes for Washington
Geographic crosswalks
- Census tract relationship files: 1990-2000 | 2000-2010
- Congressional district (by county, city, city part, school district, and ZIP Code tabulation area): 2002 | 2012
- Legislative district (by county, city, city part, school district, and ZIP Code tabulation area): 2002 | 2012
- County (by census place and tract): 2010
GIS map products
- Census reference maps: 2000 | 2010 | 2020
- Federal statistical area maps (metropolitan statistical areas, micropolitan statistical areas, combined statistical areas, metropolitan divisions): October 2018