NBER

Census Block Group Distance Database

Census Block Group Distances are great-circle distances calculated using the Haversine formula based on internal points in the geographic area.

Census Block Groups are from Census 2000 SF1 and Census 2010 SF1 files. Census Block Groups (BGs) are "statistical divisions of census tracts, are generally defined to contain between 600 and 3,000 people, and are used to present data and control block numbering....A BG usually covers a contiguous area."

The size of the file increases with the radius. Smaller files (<=.5 or <= 1 or <= 5 miles) may be easier to use if only distances <=.5 or <= 1 or <= 5 miles respectively are needed.

Updates and changes.


Year
Census Block Group Name
Distance in Miles / (CSV file size)
.5 (27M)
1 (110M)
5 (2G)
10 (5.4G)
25 (17G)
50 (33G)
Stata
SAS
CSV
Desc
Stata
SAS
CSV
Desc
Stata
SAS
CSV
Desc
Stata
SAS
CSV
Desc
Stata
SAS
CSV
Desc
Stata
SAS
CSV
Desc
Stata
SAS
CSV
Desc
2010
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
2000
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc

To report problems or if you have comments or suggestions , e-mail Jean Roth at jroth@nber.org

Last Update: July 17, 2015 Created by Jean Roth September 2, 2014

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