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05.21.21. ACS 2019 Demographic-Economic Interactive Table
... the interactive table in this section has been updated with ACS 2019 demographic economic data

10.30.18. Mapping Block Group Demographics
... view step-by-step procedures
... access block group subject matter for specified block groups using menu-based APIs
... develop custom maps and analyses

02.05.18. ACS 2016 Block Group Shapefiles & Database
... ACS 2016 national scope all U.S. by block group
... scope of data shown in above scroll section now available (CSV, XLS, DBF)
... GIS projects & applications
... custom maps and analytical applications available

03.19.16. Citizen Voting Age Population by Block Group
... national scope all U.S. by block group
... GIS projects & applications
... see http://proximityone.com/cvap_bg_2014.htm
     Patterns of low & moderate income by block group
    

03.08.16. Low and Moderate Income Demographics by Block Group
... national scope all U.S. by block group interactive ranking table
... developing site analysis reports; GIS project & datasets
... see http://proximityone.com/lmisd.htm
     Patterns of low & moderate income by block group
    

01.13.16. Crime Data Analytics
... integrating location-based crime data with demographic-economic data.
... summarizing crime data to block level; integrating ACS 2014 block group data
... GIS project & datasets
... see http://proximityone.com/crime_data_analytics.htm
     Patterns of crime by location & census block; Kansas City, MO
    

01.09.16. Linguistic Isolation by Block Group
... illustrating use of tools; Los Angeles County applications
... apply to any county: narrative, GIS project & datasets
... using 2014 ACS 5-year estimates
... see http://proximityone.com/linguistic_isolation_bg.htm
     Patterns of Linguistic Isolation; Los Angeles County, CA
    

11.19.15. Relating Block Groups to ZIP Code Areas
... interactive table & GIS tools/applications
... population and area for each BG part intersecting with ZIP code area
... See http://proximityone.com/bg-zip.htm

08.04.15. Get Block Group Demographic-Economic Profile based on Address
... key in an address and view profile for corresponding block group.
... See http://proximityone.com/location_based_demographics.htm

01.29.15. Patterns of Block Group Income Inequality
... data and tools to examine patterns of income equality by block group
... http://proximityone.com/blockgroup_income_inequality.htm
... patterns of income inequality by block group; New York city; click for larger view
      

09.01.14. Census 2010 Census Block Group Tallies by State
... interactive table: http://proximityone.com/geo_blockgroups.htm
... water and land area block groups; compare with tracts and blocks
... Warren Glimpse blog on this topic ... searchable list of blog posts

Demographic Economic Data Extraction
... Demographic Economic Data Extraction (DEDE) API tool
... extract multi-sourced demographic economic data
... census block, block group and other geography

Census Block, Block Group & Census Tract Pattern Analysis
... Join us in this upcoming one-hour Web session.
... More information. Register (no fee).

Naturally Occurring Retirement Communities
... 10,000+ areas where more than 40% have head of household age 65 years or over
... http://proximityone.com/norc.htm
      

Examining Neighborhood Demographic-Economic Characteristics
... using site analysis tools to select/define neighborhood by block group
... visual & tabular study area demographic-economic summary
... see Scottsdale, AZ example & details

The Census 2010 Race/Ethnicity Block Group Dataset zip file expands to the CSV structured file "BG_2010_SF1_P003.CSV". The dataset was developed using CV XE APIGateway. The dataset illustrates the capabilities of the APIGateway. Any set of 1990 Census (SF1/SF3), Census 2000 (SF1/SF3), Census 2010, ACS 2010 and later ACS data tabulated by block group may be extracted/integrated using the APIGateway. Register here for more information about the Census 2010 Race/Ethnicity Block Group Dataset download (mention "Census 2010 BG download" in text section).

The CSV file contains an 12 character GEOID census block group geocode and nine additional integer fields described below.

P3. RACE [8]
  P0030001 Total population
  P0030002 White alone
  P0030003 Black or African American alone
  P0030004 American Indian and Alaska Native alone
  P0030005 Asian alone
  P0030006 Native Hawaiian and Other Pacific Islander alone
  P0030007 Some Other Race alone
  P0030008 Two or More Races
 
P4. HISPANIC OR LATINO ORIGIN [3]
  P0040003 Hispanic or Latino
 
Attribution should be "developed with ProximityOne CV XE APIGateway, based on data from Census 2010, Summary File 1". These data are further described in the Census 2010 Summary File documentation (section 7). Please send questions/comments.

Census Block Groups are geographic areas defined by the Census Bureau for a decennial census. Each block group is a set of one or more contiguous blocks. Block groups are the smallest areas for which Census sourced estimates are developed. Block Groups (BGs) are a "mid-range" geography between census blocks and census tracts. For Census 2010 there are 11,078,297 census blocks, 217,740 census block groups and 73,057 census tracts covering the U.S. wall-to-wall. These geographies have a nesting relationship as shown in the graphic at right. For any given county, Census 2000 and Census 2010 vintage block group areas might differ significantly in terms of boundary, geocode and relationship to associated census blocks and census tracts.

The census block is the lowest level geographic area for which Census 2010 data are tabulated. The census block group is the smallest geographic area for which American Community Survey (ACS) data are tabulated (estimated).

No Census 2010 Richer Demographics. As with all Census 2010 geographic areas, census block group tabulations include Census 2000 "short-form" type subject matter. There are no "richer demographics" Census 2010 data owing to use of the reduced scope questionnaire. In contrast, annual ACS block group estimates of richer demographic are available. The first ACS data for Census 2010 BG geography/boundaries are the ACS 2010 5-year estimates (release date December 2011). These estimates are based on the survey period 2006 through 2010 and thus measures centric to mid-2008.

Comparing Census 2000 to ACS BG Demographics. The first ACS BG estimates were produced as a part of the 2009 ACS 5-year estimates (for the survey period 2005-2009; measures centric to mid-2007). The 2009 ACS BG data (released December 2010) are estimates for Census 2000 vintage block group codes/boundaries. These are the only BG level estimates available to examine demographic change and patterns since Census 2000 (as both programs use the same BG codes/boundaries). The 2010 ACS shifts to use of the Census 2010 codes/boundaries. See also Census 2010 Demographics for Census 2000 Geography.