OPEN SOURCE · APACHE-2.0

From raw public data to the stories that change how decisions are made.

An open-source policy data platform. 13 federal and state data sources. 42 indicator variables. 72 Wisconsin counties. 1,652 census tracts.

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Counties
Tracts
Variables
Policy Positions
WISCONSIN COUNTY EXPLORER

Counties

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EVIDENCE LIBRARY

Evidence Cards

POLICY TRACKER

Candidate Policy Positions

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Policy Data Chat

ABOUT THE PLATFORM

Policy Data Infrastructure

What is this?

An open-source policy data platform that ingests data from 13 federal and state sources, stores indicators at multiple geographic levels in PostGIS, runs statistical analyses (OLS regression, tipping points, composite indices, correlation matrices), and generates evidence-based policy narratives. Built to make public data accessible for policy decisions.

72
Counties
1,652
Tracts
42
Variables
380+
Tests
Methodology
  • Indicators stored as raw values — NULL for missing or suppressed data
  • Pipeline validation gate rejects loads with >30% null rate
  • ICE (Index of Concentration at the Extremes) for segregation measures
  • OLS regression, bootstrap CIs, percentile ranking within geographic scope
  • Tipping point detection via piecewise linear regression
  • Blinder-Oaxaca decomposition for gap analysis
  • Composite indices weighted by equity dimension crosswalk
Data Sources
SourceTypeCoverageVariables
Open Source

The entire platform is open source under the Apache-2.0 license. 13 Go datasource adapters, full PostGIS integration, Python ingest pipeline, and statistical engine. Contributions welcome.

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