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citation_title: Cities with cleanest air in United States
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---

# Cities with cleanest air in United States

United States cities ranked by annual PM2.5 concentration, not by current readings.

- Canonical: /reports/united-states-cities-with-cleanest-air/
- Last checked: 2026-08-06

## Answers

### Hilo, United States

2.66 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-08-05

### Kīhei, United States

2.87 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-08-05

### City of Sammamish, United States

2.87 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-08-06

### Green Valley, United States

2.96 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-08-06

### Rock Springs, United States

3.21 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### East Providence, United States

3.46 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Cheyenne, United States

3.75 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Hurricane, United States

3.85 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Hillsboro, United States

3.85 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Mesquite, United States

3.9 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Mesquite, United States

3.9 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Aloha, United States

3.9 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-08-05

### San Luis, United States

3.9 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### San Luis Obispo, United States

3.9 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Casper, United States

3.91 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Bremerton, United States

3.93 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Concord, United States

3.93 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Concord, United States

3.93 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Concord, United States

3.93 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Juneau and borough, United States

3.93 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-08-05

### Gilroy, United States

3.96 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Silverdale, United States

3.96 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-08-05

### Enterprise, United States

3.99 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Kahului, United States

4.02 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-08-05

### Bangor, United States

4.04 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Ridgecrest, United States

4.13 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Lewiston, United States

4.14 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Lewiston, United States

4.14 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-07-29

### Urban Honolulu, United States

4.14 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-08-06

### East Honolulu, United States

4.19 µg/m³
- Source: https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
- Checked: 2026-08-05

## Method

Every row is a published pm2.5 — annual mean observation measured in µg/m³, ranked lowest first. The values were observed in 2024. A place appears only when it publishes this exact metric, so an absent place means missing data rather than a low value. Only published cities with at least 20,000 residents and city-level observations qualify.

## Sources

U.S. EPA Air Quality System / AirData — https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip

## Cite

This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately.

### APA

ImmigrationDB. (2026, October 16). Cities with cleanest air in United States [ImmigrationDB compilation; version 3d520a8ef1eaeb1fc09458c08aab3c75]. ImmigrationDB. https://immigrationdb.com/reports/united-states-cities-with-cleanest-air/ Retrieved 2026-10-16. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/

### BibTeX

```bibtex
@misc{immigrationdb_immigrationdb_cities-with-cleanest-air-in-united-states_232b78df67ff,
  author = {ImmigrationDB},
  title = {Cities with cleanest air in United States},
  publisher = {ImmigrationDB},
  year = {2026},
  date = {2026-10-16},
  version = {3d520a8ef1eaeb1fc09458c08aab3c75},
  url = {https://immigrationdb.com/reports/united-states-cities-with-cleanest-air/},
  note = {Retrieved 2026-10-16. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}
```

### Markdown

[Cities with cleanest air in United States](https://immigrationdb.com/reports/united-states-cities-with-cleanest-air/) — ImmigrationDB; ImmigrationDB; version 3d520a8ef1eaeb1fc09458c08aab3c75; retrieved 2026-10-16; built 2026-10-16.

- Citation schema: `immigrationdb-citation-v1`
- Canonical URL: https://immigrationdb.com/reports/united-states-cities-with-cleanest-air/
- Title: Cities with cleanest air in United States
- Author: ImmigrationDB
- Publisher: ImmigrationDB
- Snapshot: `approved-static-48d32b636f07abc8`
- Version: `3d520a8ef1eaeb1fc09458c08aab3c75`
- Retrieved: 2026-10-16
- Built: 2026-10-16
- Compilation license: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

## Boundary

This ranking is a source-backed reference. Read the source, geographic grain and observation date before comparing rows.