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

Median Air Quality Index (US EPA) in Sarpy County

Median Air Quality Index (US EPA) in Sarpy County was 32 in 2025, according to the U.S. Environmental Protection Agency. That is down 5 from 2024.

2025, index32
Change on 2024-5
Series high542010
Series low151995

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 Sarpy County, 1995 to 2025

102030405060199520022006201020142018202220251995: 15 index1999: 51 index2000: 46 index2001: 51 index2002: 49 index2003: 46 index2004: 47 index2005: 49 index2006: 46 index2007: 46 index2008: 49 index2009: 39 index2010: 54 index2011: 53 index2012: 52 index2013: 52 index2014: 43 index2015: 44 index2016: 42 index2017: 51 index2018: 46 index2019: 39 index2020: 39 index2021: 41 index2022: 32 index2023: 37 index2024: 37 index2025: 32 index1020304050601995200820251995: 15 index1999: 51 index2000: 46 index2001: 51 index2002: 49 index2003: 46 index2004: 47 index2005: 49 index2006: 46 index2007: 46 index2008: 49 index2009: 39 index2010: 54 index2011: 53 index2012: 52 index2013: 52 index2014: 43 index2015: 44 index2016: 42 index2017: 51 index2018: 46 index2019: 39 index2020: 39 index2021: 41 index2022: 32 index2023: 37 index2024: 37 index2025: 32 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 28 values
Periodindex
202532
202437
202337
202232
202141
202039
201939
201846
201751
201642
201544
201443
201352
201252
201153
201054
200939
200849
200746
200646
200549
200447
200346
200249
200151
200046
199951
199515

Sarpy County compared with nearby places

Cass County: 19 indexDouglas County: 42 indexGage County: 34 indexHall County: 34 indexKnox County: 36 indexLancaster County: 37 indexSarpy County: 32 indexScotts Bluff County: 23 indexSioux County: 42 indexThomas County: 22 indexWashington County: 27 index
  • Under 23
  • 23 to 32
  • 32 to 34
  • 34 to 37
  • 37 and over
  • No data
Median Air Quality Index (US EPA), 2025, index. Sarpy 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), Sarpy County, 1995 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), Sarpy County, 1995 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/sarpy-county-nebraska. 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), Sarpy County, 1995 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/sarpy-county-nebraska.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Sarpy County, 1995 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/sarpy-county-nebraska (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), Sarpy County, 1995 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/sarpy-county-nebraska. 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), Sarpy County, 1995 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/sarpy-county-nebraska
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/sarpy-county-nebraska.
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 Sarpy County?

Median Air Quality Index (US EPA) in Sarpy County was 32 in 2025, according to the U.S. Environmental Protection Agency. That is down 5 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 Sarpy County?

54 in 2010, the highest value since 1995 in this series.

Related statistics for Sarpy County

All statistics for Sarpy County | Sarpy County in figures