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

Median Air Quality Index (US EPA) in Jackson County

Median Air Quality Index (US EPA) in Jackson County was 38 in 2021, according to the U.S. Environmental Protection Agency. That is up 6 from 2020.

2021, index38
Change on 2020+6
Series high741999
Series low322020

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 Jackson County, 1999 to 2021

3040506070801999200320072011201520211999: 74 index2000: 67 index2001: 58 index2002: 58 index2003: 56 index2004: 47 index2005: 55 index2006: 58 index2007: 59 index2008: 53 index2009: 44 index2010: 51 index2011: 49 index2012: 48 index2013: 46 index2014: 44 index2015: 44 index2016: 48 index2017: 45 index2018: 43 index2019: 34 index2020: 32 index2021: 38 index2040608019992007201520211999: 74 index2000: 67 index2001: 58 index2002: 58 index2003: 56 index2004: 47 index2005: 55 index2006: 58 index2007: 59 index2008: 53 index2009: 44 index2010: 51 index2011: 49 index2012: 48 index2013: 46 index2014: 44 index2015: 44 index2016: 48 index2017: 45 index2018: 43 index2019: 34 index2020: 32 index2021: 38 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 23 values
Periodindex
202138
202032
201934
201843
201745
201648
201544
201444
201346
201248
201149
201051
200944
200853
200759
200658
200555
200447
200356
200258
200158
200067
199974

Jackson County compared with nearby places

Alexander County: 41 indexAvery County: 40 indexBuncombe County: 41 indexCaldwell County: 40 indexCarteret County: 35 indexCaswell County: 38 indexCatawba County: 46 indexCumberland County: 44 indexDavidson County: 47 indexDurham County: 44 indexEdgecombe County: 38 indexForsyth County: 48 indexGraham County: 42 indexGranville County: 38 indexGuilford County: 44 indexHaywood County: 43 indexHyde County: 22 indexJackson County: 38 indexJohnston County: 44 indexLenoir County: 34 indexLincoln County: 42 indexMacon County: 30 indexMartin County: 32 indexMecklenburg County: 49 indexMitchell County: 31 indexMontgomery County: 43 indexNew Hanover County: 40 indexNorthampton County: 34 indexPerson County: 41 indexPitt County: 39 indexRockingham County: 43 indexRowan County: 44 indexSwain County: 40 indexUnion County: 42 indexWake County: 48 indexYancey County: 44 index
  • Under 35
  • 35 to 40
  • 40 to 41
  • 41 to 43
  • 43 to 44
  • 44 and over
  • No data
Median Air Quality Index (US EPA), 2021, index. Jackson 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), Jackson County, 1999 to 2021) [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), Jackson County, 1999 to 2021. 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/jackson-county-north-carolina. 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), Jackson County, 1999 to 2021. 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/jackson-county-north-carolina.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Jackson County, 1999 to 2021 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/median-air-quality-index/jackson-county-north-carolina (Accessed: 12 October 2026).

BibTeX
@misc{environmental_median_air_quality_index_2021,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: median daily AQI: Median Air Quality Index (US EPA), Jackson County, 1999 to 2021}},
  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/jackson-county-north-carolina. 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), Jackson County, 1999 to 2021
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/jackson-county-north-carolina
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/jackson-county-north-carolina.
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 Jackson County?

Median Air Quality Index (US EPA) in Jackson County was 38 in 2021, according to the U.S. Environmental Protection Agency. That is up 6 from 2020.

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 Jackson County?

74 in 1999, the highest value since 1999 in this series.

Related statistics for Jackson County

All statistics for Jackson County | Jackson County in figures