A civic data commons for Dane County
Every map cites its sources. Every estimate says how certain it is. Everything reads in English and Spanish — and everything is free to download, not just to look at.
The Equity Atlas
Where families own their homes, where rent takes more than a third of a paycheck, where the gaps are narrowing. Pick a place, an outcome, and a community — all three stay in view while you explore.
Open the AtlasPolicy Maps
When a rule changes — an income threshold, a zoning line, a program cutoff — these maps show which neighborhoods sit closest to that line. Every assumption is labeled, and maps built from different-confidence data say so.
Explore Policy MapsAlpha versions
Before Madison Equity Data, there were two original works built with Common Wealth Development: a narrative and a data tool. Sign up to download the alpha versions.
Download the alpha versionsEvery layer on every map names its source and carries a confidence rating, from T1 (directly measured here) to T5 (an indirect proxy). Where we only have county-level data for a neighborhood, the map shows it — hatched and faded, not dressed up as certainty.
How the T1–T5 ratings workNo lists sold, no tracking pixels. Unsubscribe in one click.