| Social Explorer |
Query and map a variety of census and demographic data. Provides estimates using 2010 boundaries for a standard set of variables from 1970 through 2000 (normalized geography) as well as data back to 1790 in original boundaries. Learn how to join data to a TIGER file to use in GIS. |
block group |
1790 |
.csv, .xls |
| National Historical Geographic Information System (NHGIS) |
Archived census data and historical census boundary files (data needs to be joined to them). |
varies by year, some down to block |
1790 |
.csv, .shp |
| Historical Decennial Census and Population Housing Counts |
Reports on historical census variables. |
N/A |
1790 |
.pdf |
| ICPSR |
Census data held by ICPSR |
varies by year, some down to tract |
1790 |
.ASCII |
| Longitudinal Tract Database |
The LTDB provides estimates using 2010 boundaries for a standard set of variables from 1970 through 2000 (normalized geography). Need to manipulate the database to use it. |
tract |
1970 |
Access, Stata code |
| Census FTP site |
Access older census data for large areas. |
tract |
1980 |
.txt |
| IPUMS-USA |
High-precision samples of the American population drawn from federal censuses and the American Community Surveys. |
microdata |
1790 |
.ASCII |
| Population and Housing Unit Estimates |
Yearly estimates of basic population demographic and housing variables |
county |
1970 |
.txt |
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