zipradar

Compare · WI · MN

ZIP 53703 vs ZIP 55401

Madison, WI compared to Minneapolis, MN on twelve public-records dimensions sourced from EPA, FEMA, USDA, FBI, NCES, and county records. Each cell links to the per-ZIP topic page where the source citation and refresh cadence live.

Last verified 2026-09-24 · methodology

ZIP 53703

Madison, WI

Wisconsin

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ZIP 55401

Minneapolis, MN

Minnesota

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Verdict

On the 3 of 12 dimensions that carry measured values today, both sit in EPA Radon Zone 1; 2025 median air quality is Good in both (AQI 41 vs 45); health-based water violations in 3 years — 1 for 53703, 0 for 55401. zipradar names no overall winner: the other 9 dimensions are not populated yet, and these three are county-level indicators rather than address-level readings. Open either ZIP below for the source and refresh date behind each number.

Side by side

Dimensions populate live as ingestion reaches each source. Every row will link to the primary regulator.

Wisconsin context

Lead pipes (Milwaukee), radon Zone 1

Wisconsin is uniformly Zone 1 radon. LCRR lead-service-line obligations heaviest in Milwaukee, Madison, Green Bay. Lake Michigan shoreline erosion expands FEMA AE zones in some lakefront counties.

Wisconsin state page →

Minnesota context

Radon Zone 1, lead in older Twin Cities housing

Minnesota is uniformly Zone 1 radon. Twin Cities + Duluth carry LCRR lead-service-line obligations. Spring snowmelt flooding affects FEMA AE zones along the Red River + Minnesota River.

Minnesota state page →

Read more on cross-ZIP comparisons

Editorial deep-dives that help when reading two places side-by-side — what each data layer actually proves, and what it doesn't.

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