Median Air Quality Index (US EPA) in Comanche County

Median Air Quality Index (US EPA) in Comanche County was 44 in 2025, according to the U.S. Environmental Protection Agency. That is up 1 from 2024.

2025, index44
Change on 2024+1
Series high562009
Series low141992

Next release: Tuesday, 13 July 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Median Air Quality Index (US EPA) in Comanche County, 1988 to 2025

10203040506019881994200020062012201820251988: 27 index1989: 26 index1990: 23 index1991: 25 index1992: 14 index1993: 15 index1994: 37 index1995: 40 index1996: 36 index1997: 28 index1998: 41 index1999: 41 index2000: 44 index2001: 44 index2002: 40 index2003: 44 index2004: 40 index2005: 41 index2006: 43 index2007: 39 index2008: 41 index2009: 56 index2010: 52 index2011: 54 index2012: 54 index2013: 48 index2014: 47 index2015: 44 index2016: 42 index2017: 44 index2018: 44 index2019: 47 index2020: 44 index2021: 47 index2022: 47 index2023: 46 index2024: 43 index2025: 44 index020406019882001201420251988: 27 index1989: 26 index1990: 23 index1991: 25 index1992: 14 index1993: 15 index1994: 37 index1995: 40 index1996: 36 index1997: 28 index1998: 41 index1999: 41 index2000: 44 index2001: 44 index2002: 40 index2003: 44 index2004: 40 index2005: 41 index2006: 43 index2007: 39 index2008: 41 index2009: 56 index2010: 52 index2011: 54 index2012: 54 index2013: 48 index2014: 47 index2015: 44 index2016: 42 index2017: 44 index2018: 44 index2019: 47 index2020: 44 index2021: 47 index2022: 47 index2023: 46 index2024: 43 index2025: 44 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 38 values
Periodindex
202544
202443
202346
202247
202147
202044
201947
201844
201744
201642
201544
201447
201348
201254
201154
201052
200956
200841
200739
200643
200541
200440
200344
200240
200144
200044
199941
199841
199728
199636
199540
199437
199315
199214
199125
199023
198926
198827

Comanche County compared with nearby places

Adair County: 48 indexCanadian County: 43 indexCarter County: 32 indexCleveland County: 48 indexComanche County: 44 indexCreek County: 42 indexDewey County: 46 indexGrant County: 31 indexKay County: 37 indexKiowa County: 43 indexLove County: 44 indexMcClain County: 43 indexMayes County: 37 indexOklahoma County: 51 indexOsage County: 42 indexOttawa County: 49 indexPittsburg County: 48 indexSequoyah County: 42 indexTulsa County: 50 indexWashington County: 44 index
  • Under 41
  • 41 to 43
  • 43 to 44
  • 44 to 48
  • 48 and over
  • No data
Median Air Quality Index (US EPA), 2025, index. Comanche County is outlined. Same source and period for every area shown. Source: U.S. Environmental Protection Agency. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

Definition

Median of the daily Air Quality Index (AQI) values of a US county over the days of the year with an AQI, from the EPA AirData annual summaries.

More on how it is measured
  • The daily county AQI is the highest AQI among the monitors and pollutants reported that day (ozone, PM2.5, PM10, carbon monoxide and nitrogen dioxide).
  • Lower is cleaner: 0 to 50 is good, 51 to 100 moderate and above 100 unhealthy for sensitive groups.

United States counties with air quality monitors only, about 1,000 of some 3,100 in recent years; a county without monitors has no value. The number of days with an AQI differs between counties because some monitors run only in the ozone season.

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How to cite

U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median daily AQI. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Environmental Protection Agency. (2026). EPA AirData annual AQI by county: median daily AQI (Median Air Quality Index (US EPA), Comanche County, 1988 to 2025) [Data set]. Retrieved October 12, 2026, from https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual

MLA 9

EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Comanche County, 1988 to 2025. U.S. Environmental Protection Agency, 13 July 2026, https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Invokely, https://invokely.ai/en/median-air-quality-index/comanche-county-oklahoma. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Environmental Protection Agency. 2026. EPA AirData annual AQI by county: median daily AQI. Median Air Quality Index (US EPA), Comanche County, 1988 to 2025. Dataset. Accessed October 12, 2026. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Also distributed by Invokely, https://invokely.ai/en/median-air-quality-index/comanche-county-oklahoma.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Comanche County, 1988 to 2025 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/median-air-quality-index/comanche-county-oklahoma (Accessed: 12 October 2026).

BibTeX
@misc{environmental_median_air_quality_index_2025,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: median daily AQI: Median Air Quality Index (US EPA), Comanche County, 1988 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/comanche-county-oklahoma. Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median daily AQI. https://aqs.epa.gov/aqsweb/airdata/download\_files.html\#Annual. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Environmental Protection Agency
TI  - EPA AirData annual AQI by county: median daily AQI: Median Air Quality Index (US EPA), Comanche County, 1988 to 2025
PY  - 2026
DA  - 2026/07/13
PB  - U.S. Environmental Protection Agency
DB  - Invokely
UR  - https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual
L2  - https://invokely.ai/en/median-air-quality-index/comanche-county-oklahoma
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/comanche-county-oklahoma.
N1  - Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median daily AQI. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.
ER  - 
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Questions

What is the median Air Quality Index (US EPA) in Comanche County?

Median Air Quality Index (US EPA) in Comanche County was 44 in 2025, according to the U.S. Environmental Protection Agency. That is up 1 from 2024.

Where does this figure come from?

U.S. Environmental Protection Agency. EPA AirData annual AQI by county: median daily AQI. Retrieved by Invokely on 2026-10-12.

What was the highest median Air Quality Index (US EPA) in Comanche County?

56 in 2009, the highest value since 1988 in this series.

Related statistics for Comanche County

All statistics for Comanche County | Comanche County in figures