United States Census Block Groups

Name: United States Census Block Groups
Creator: US Census Bureau
License: public-domain

boundary

Geographic boundaries and identification codes for Census Block Groups across the United States. This dataset includes standard FIPS codes for states and counties, as well as tract and block group identifiers used by the US Census Bureau for statistical mapping and demographic analysis.

At a glance

Records: 242,298
Geometry: MultiPolygon
Area type: Bg
Location: United States
Country: United States of America
Source: US Census Bureau
Licence: public-domain
Year: 2025

Columns (8)

Column	Type	Statistics	Description
State Code	string	—	Two-digit Federal Information Processing Series (FIPS) code identifying the state.
County Code	string	—	Three-digit FIPS code identifying the county within a state.
Tract Code	string	—	Six-digit census tract identifying code.
Block Group	string	10 unique	Single-digit code identifying the census block group within a tract.
Full ID	string	—	Fully qualified geographic identifier including the summary level and US prefix.
ID	string	—	Concatenated state, county, tract, and block group identifier used as a unique geographic key.
Number	string	10 unique	The numeric identifier for the block group.
Name	string	10 unique	The legal/statistical area description for the block group.

Data preview

State Code	County Code	Tract Code	Block Group	Full ID	ID	Number	Name
48	355	002304	2	1500000US483550023042	483550023042	2	Block Group 2
19	153	002700	2	1500000US191530027002	191530027002	2	Block Group 2
34	033	021600	3	1500000US340330216003	340330216003	3	Block Group 3
50	007	003503	1	1500000US500070035031	500070035031	1	Block Group 1
26	163	531800	2	1500000US261635318002	261635318002	2	Block Group 2
26	093	722500	1	1500000US260937225001	260937225001	1	Block Group 1
06	037	199002	2	1500000US060371990022	060371990022	2	Block Group 2
17	043	846103	1	1500000US170438461031	170438461031	1	Block Group 1
25	017	353000	2	1500000US250173530002	250173530002	2	Block Group 2
13	071	970800	3	1500000US130719708003	130719708003	3	Block Group 3

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