Census Data Resources: Comparing Over Time

Guide to (mostly online) resources for manipulating and extracting Census data.

Comparing Decennial Long Form Data to ACS Data

Reference Materials for Historical Census Research

Resources for Comparing Censuses

Some words of caution for making comparisons across censuses:

  • Boundaries change across censuses
  • Some of the questions asked on the census questionnaire have changed over time, as have the ways respondents were instructed to answer.

GeoLytics has used proprietary methods to normalize data and create estimates for intercensal comparisons. 

These GeoLytics CD-ROM products are available in Davis Library:

These discs may only be installed on Library computers and a serial number is required.  Ask for help at the service desk, or schedule a consultation for assistance.