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Compare · IN · OH

ZIP 46204 vs ZIP 43215

Indianapolis, IN compared to Columbus, OH 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 2026-05-13 · methodology

ZIP 46204

Indianapolis, IN

Indiana

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ZIP 43215

Columbus, OH

Ohio

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Side by side

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

Indiana context

Radon, lead pipes (older Rust Belt cities)

Indiana has Zone 1 radon coverage across most counties. Lead-service-line inventories under LCRR are heaviest in Gary, South Bend, Hammond, Indianapolis. Tornado exposure peaks April-June.

Indiana state page →

Ohio context

Lead service lines, Great Lakes erosion

Ohio has heavy LCRR obligations in Cleveland, Cincinnati, Columbus, Toledo. Lake Erie shoreline erosion expands FEMA AE zones in some lakefront counties. Tornado exposure on the Indiana/Ohio border.

Ohio 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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