Spatial Data Made Simple
Explore 200+ years of visualized census data
We've taken the work out of researching places and done it for you. Use PARCi to find historical and contemporary census data on just about any place within the United States. Just select a year from the timeline, zoom into the desired scale, and click to view detailed demographic data fully rendered in easy-to-read charts and diagrams.
Browse detailed spatial and demographic information across 200+ years of history.
Access past census data on historically-accurate maps. View vivid charts and graphs of demographic data.
Save maps and export data visualizations for use offline.
Start your PARCi account for free (no credit card required).
Choose from over 200 years of census data.
Select an area to explore and choose to view it at the state, county, city, tract, or block level.
Click on the map to view charts showing data on population, income, education, and more!