This is an online repository of US Census data covering from the first census in 1790 to present. The census data as well as the associated shapefiles for state and county levels four all decennial censuses. American Community Survey data, agricultural census data, and other census bureau documents can be downloaded. This is one of the easiest ways to get a hold of historical census data and start working with it. The data available includes:
Decennial census data
County and state tables since 1790
Census tract tables since 1910
Tables for all original census summary levels, down to census blocks, since 1970
American Community Survey data
5-year periods from 2005-2009 through 2010-2014
3-year periods from 2008-2010 through 2011-2013
1-year periods from 2010 through 2014
County Business Patterns data (1970-2002, annual)
Agricultural census data (1840-1950)
Religious bodies data (1850-1952)
Manufacturing census data (1840-1940)
2010 Census data for SABINS school attendance areas
What to know:
Please note that this is not a mapping tool. A GIS program will be needed to make use of the shapefiles.
The census data can be worked on without the shapefiles in any spreadsheet software like Excel.
Once you create a login, you can use it for all Minnesota Population Center projects.
There is a user guide and FAQ section that can help with requesting data.
Once you submit your request for data, it usually takes a few minutes for it to be compiled and made available.
There are also some time series tables available, such as for population.