| Census Planning Database: Block Group | The PDB is a database of U.S. housing, demographic, socioeconomic and operational statistics based on select 2010 Decennial Census and select 5-year American Community Survey (ACS) estimates. Data are provided at the census block group level of geography. These data can be used for many purposes, including survey field operations planning | 2019 | pdb› blockgroup | Aggregate | geographies | variables | groups | sorts | examples | documentation | http://api.census.gov/data/2019/pdb/blockgroup |