SmogRank / World / United States / Indiana / July 2025
Most polluted cities in Indiana, United States, July 2025
22 cities in Indiana, United States ranked by their average PM2.5 over the 31 days. Worst: Hammond at 14.5 µg/m³, #423 of 2,832 cities in the world. Cleanest: New Albany at 8.0. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Elkhart 7%
- 2Hammond 6%
- 3New Albany 3%
- 4Portage 3%
- 5Michigan City 3%
- 6Indianapolis 3%
- 7Gary 3%
- 8East Chicago 3%
- 9South Bend 3%
- 10McCordsville 3%
- 11Columbia City 0%
- 12Fort Wayne 0%
- 13Muncie 0%
- 14Terre Haute 0%
- 15Columbus 0%
- 16Lafayette 0%
- 17Kokomo 0%
- 18Anderson 0%
- 19Evansville 0%
- 19Jasper 0%
- 21Jeffersonville 0%
- 22Bloomington 0%
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
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SmogRank, most polluted cities in Indiana, United States, PM2.5, July 2025, smogrank.com/us/region/indiana/history/2025-07 (accessed 7 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.