{{source}}U.S. Census Bureau - Census block - A census block is the smallest geographic unit used by the United States Census Bureau for tabulation of 100-percent data. The number of blocks in the United States, including Puerto Rico, for the 2010 Census was 11,155,486. This information is for Pickaway County, Ohio. It contains 2010 population and housing unit information for Pickaway County.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/a5be2365ef894470be9362480910f899_0engPickaway County GIS Open DataPublic2010 Census Blocks [Ohio--Pickaway County]Web servicesOhio--Pickaway CountyOhio2010