SmogRank / World / United States / Indiana / July 2026
Most polluted cities in Indiana, United States, July 2026
18 cities in Indiana, United States ranked by their average PM2.5 over the 31 days. Worst: Portage at 22.6 µg/m³, #260 of 2,751 cities in the world. Cleanest: New Albany at 8.7. 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 14%
- 2Portage 13%
- 3Hammond 13%
- 4East Chicago 13%
- 5South Bend 13%
- 6Columbia City 13%
- 7Fort Wayne 13%
- 8Gary 13%
- 9Michigan City 10%
- 10Muncie 6%
- 11Indianapolis 6%
- 12Anderson 6%
- 13Bloomington 6%
- 14Lafayette 3%
- 15Jasper 0%
- 16Evansville 0%
- 17Jeffersonville 0%
- 18New Albany 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 2026, smogrank.com/us/region/indiana/history/2026-07 (accessed 6 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.