2010 Decennial Census boundary data for Washington at the Block level (shapefile) ##Redistricting Data Hub (RDH) Retrieval Date 12/24/20 ##Sources Census data retrieved using the Census API: https://api.census.gov/data/2010/dec/sf1 Boundary shapefile retrieved from the Census Cartographic Boundary File website: https://www.census.gov/geo/tiger/TIGER2010/TABBLOCK/2010 ##Fields Field Name Description 0 GEOID Unique identifier 1 NAME Full Geographic Name of the Block 2 STATE Name of the State 3 COUNTY Name of the County 4 TOTPOP10 Total Population (P001001) 5 STATEFP State FIPS Code 6 COUNTYFP County FIPS Code 7 TRACTCE Tract Code 8 BLOCKCE Block Code 9 ALAND Land Area (Square Meters) 10 AWATER Water Areas (Square Meters) ##Processing Census population data for Washington was retrieved with a python script from the Census API. The population data is available at the county level. Data was extracted for all counties in Washington. The fields were renamed to fit character length requirements. The shapefile was zipped into a folder with supporting geospatial files and this README. Processing was primarily completed using the pandas library. The population data for Washington was joined with geospatial data from Census TIGER files on the unique identifier field (GEOID) and extracted as a shapefile. Processing for the join used pandas and geopandas libraries. ##Additional Notes For more information on the 2010 Census API see: https://api.census.gov/data/2010/dec/sf1/variables.html. For more information on the geospatial data, please refer to the Census Cartographic Boundary link above. The Census shapefile for Washington is available in NAD83 projection.