Data / Median Air Quality Index (US EPA) / Ford County

Median Air Quality Index (US EPA) in Ford County

Median Air Quality Index (US EPA) in Ford County was 28 in 2025, according to the U.S. Environmental Protection Agency. That is up 2 from 2024.

2025, index28
Change on 2024+2
Series high341992
Series low62013

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 Ford County, 1985 to 2025

01020304019851991199720032010201620251985: 15 index1986: 22 index1987: 16 index1988: 18 index1989: 20 index1990: 24 index1991: 19 index1992: 34 index1993: 34 index1994: 20 index1995: 22 index1996: 19 index1997: 16 index1998: 21 index1999: 19 index2000: 17 index2001: 16 index2002: 15 index2003: 24 index2004: 17 index2005: 15 index2006: 18 index2008: 17 index2009: 15 index2010: 14 index2011: 14 index2012: 12 index2013: 6 index2014: 7 index2015: 13 index2016: 16 index2017: 16 index2018: 17 index2019: 15 index2020: 11 index2021: 17 index2022: 19 index2023: 15 index2024: 26 index2025: 28 index01020304019851999201420251985: 15 index1986: 22 index1987: 16 index1988: 18 index1989: 20 index1990: 24 index1991: 19 index1992: 34 index1993: 34 index1994: 20 index1995: 22 index1996: 19 index1997: 16 index1998: 21 index1999: 19 index2000: 17 index2001: 16 index2002: 15 index2003: 24 index2004: 17 index2005: 15 index2006: 18 index2008: 17 index2009: 15 index2010: 14 index2011: 14 index2012: 12 index2013: 6 index2014: 7 index2015: 13 index2016: 16 index2017: 16 index2018: 17 index2019: 15 index2020: 11 index2021: 17 index2022: 19 index2023: 15 index2024: 26 index2025: 28 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 40 values
Periodindex
202528
202426
202315
202219
202117
202011
201915
201817
201716
201616
201513
20147
20136
201212
201114
201014
200915
200817
200618
200515
200417
200324
200215
200116
200017
199919
199821
199716
199619
199522
199420
199334
199234
199119
199024
198920
198818
198716
198622
198515

Ford County compared with nearby places

Chase County: 31 indexDouglas County: 37 indexFord County: 28 indexJohnson County: 44 indexLeavenworth County: 34 indexNeosho County: 44 indexSedgwick County: 48 indexShawnee County: 44 indexSherman County: 27 indexSumner County: 45 indexTrego County: 41 indexWyandotte County: 45 index
  • Under 32
  • 32 to 39
  • 39 to 44
  • 44 to 45
  • 45 and over
  • No data
Median Air Quality Index (US EPA), 2025, index. Ford 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), Ford County, 1985 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), Ford County, 1985 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/ford-county-kansas. 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), Ford County, 1985 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/ford-county-kansas.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Ford County, 1985 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/ford-county-kansas (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), Ford County, 1985 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/ford-county-kansas. 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), Ford County, 1985 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/ford-county-kansas
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/ford-county-kansas.
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 Ford County?

Median Air Quality Index (US EPA) in Ford County was 28 in 2025, according to the U.S. Environmental Protection Agency. That is up 2 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 Ford County?

34 in 1992, the highest value since 1985 in this series.

Related statistics for Ford County

All statistics for Ford County | Ford County in figures