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

Median Air Quality Index (US EPA) in Kosciusko County

Median Air Quality Index (US EPA) in Kosciusko County was 50 in 2003, according to the U.S. Environmental Protection Agency.

2003, index50
Series high511995
Series low191982

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 Kosciusko County, 1980 to 2003

102030405060198019811982199520031980: 24 index1981: 32 index1982: 19 index1995: 51 index2003: 50 index1020304050601980198220031980: 24 index1981: 32 index1982: 19 index1995: 51 index2003: 50 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 5 values
Periodindex
200350
199551
198219
198132
198024

Kosciusko County compared with nearby places

Allen County: 54 indexBoone County: 50 indexCarroll County: 46 indexClark County: 50 indexDaviess County: 16 indexDelaware County: 51 indexDubois County: 60 indexElkhart County: 53 indexFloyd County: 52 indexGibson County: 30 indexGreene County: 49 indexHamilton County: 50 indexHancock County: 48 indexHendricks County: 41 indexHenry County: 55 indexHoward County: 56 indexHuntington County: 49 indexJackson County: 48 indexJohnson County: 50 indexKnox County: 43 indexKosciusko County: 50 indexLake County: 63 indexLaPorte County: 52 indexMadison County: 54 indexMarion County: 63 indexMorgan County: 50 indexPerry County: 23 indexPorter County: 43 indexPosey County: 47 indexPutnam County: 18 indexSt. Joseph County: 56 indexShelby County: 49 indexSpencer County: 57 indexTippecanoe County: 56 indexVanderburgh County: 55 indexVigo County: 52 indexWabash County: 37 indexWarrick County: 50 indexWashington County: 53 indexWhitley County: 30 index
  • Under 42
  • 42 to 49
  • 49 to 50
  • 50 to 52
  • 52 to 56
  • 56 and over
  • No data
Median Air Quality Index (US EPA), 2003, index. Kosciusko 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), Kosciusko County, 1980 to 2003) [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), Kosciusko County, 1980 to 2003. 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/kosciusko-county-indiana. 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), Kosciusko County, 1980 to 2003. 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/kosciusko-county-indiana.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Kosciusko County, 1980 to 2003 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/median-air-quality-index/kosciusko-county-indiana (Accessed: 12 October 2026).

BibTeX
@misc{environmental_median_air_quality_index_2003,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: median daily AQI: Median Air Quality Index (US EPA), Kosciusko County, 1980 to 2003}},
  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/kosciusko-county-indiana. 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), Kosciusko County, 1980 to 2003
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/kosciusko-county-indiana
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/kosciusko-county-indiana.
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 Kosciusko County?

Median Air Quality Index (US EPA) in Kosciusko County was 50 in 2003, according to the U.S. Environmental Protection Agency.

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 Kosciusko County?

51 in 1995, the highest value since 1980 in this series.

Related statistics for Kosciusko County

All statistics for Kosciusko County | Kosciusko County in figures