SmogRank / World / United States / Indiana / April 2026
Most polluted cities in Indiana, United States, April 2026
18 cities in Indiana, United States ranked by their average PM2.5 over the 30 days. Worst: Jeffersonville at 8.4 µg/m³, #1,420 of 2,914 cities in the world. Cleanest: Gary at 5.4. 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.
- 1Jeffersonville 0%
- 2Evansville 0%
- 2New Albany 0%
- 4Indianapolis 0%
- 4Columbia City 0%
- 4Hammond 0%
- 7Fort Wayne 0%
- 8Bloomington 0%
- 9Jasper 0%
- 10Anderson 0%
- 10East Chicago 0%
- 10Elkhart 0%
- 10Lafayette 0%
- 14Muncie 0%
- 14South Bend 0%
- 16Portage 0%
- 17Michigan City 0%
- 18Gary 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, April 2026, smogrank.com/us/region/indiana/history/2026-04 (accessed 7 Oct 2026).
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