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

Median Air Quality Index (US EPA) in Lauderdale County

Median Air Quality Index (US EPA) in Lauderdale County was 35 in 2025, according to the U.S. Environmental Protection Agency. That is down 1 from 2024.

2025, index35
Change on 2024-1
Series high611999
Series low312020

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 Lauderdale County, 1987 to 2025

304050607019871993199920052011201720251987: 43 index1988: 42 index1989: 37 index1990: 39 index1991: 34 index1992: 35 index1993: 33 index1994: 35 index1995: 40 index1996: 39 index1997: 49 index1998: 45 index1999: 61 index2000: 58 index2001: 48 index2002: 45 index2003: 45 index2004: 46 index2005: 50 index2006: 54 index2007: 56 index2008: 54 index2009: 53 index2010: 54 index2011: 53 index2012: 52 index2013: 33 index2014: 36 index2015: 32 index2016: 37 index2017: 34 index2018: 37 index2019: 36 index2020: 31 index2021: 31 index2022: 36 index2023: 38 index2024: 36 index2025: 35 index304050607019872000201320251987: 43 index1988: 42 index1989: 37 index1990: 39 index1991: 34 index1992: 35 index1993: 33 index1994: 35 index1995: 40 index1996: 39 index1997: 49 index1998: 45 index1999: 61 index2000: 58 index2001: 48 index2002: 45 index2003: 45 index2004: 46 index2005: 50 index2006: 54 index2007: 56 index2008: 54 index2009: 53 index2010: 54 index2011: 53 index2012: 52 index2013: 33 index2014: 36 index2015: 32 index2016: 37 index2017: 34 index2018: 37 index2019: 36 index2020: 31 index2021: 31 index2022: 36 index2023: 38 index2024: 36 index2025: 35 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 39 values
Periodindex
202535
202436
202338
202236
202131
202031
201936
201837
201734
201637
201532
201436
201333
201252
201153
201054
200953
200854
200756
200654
200550
200446
200345
200245
200148
200058
199961
199845
199749
199639
199540
199435
199333
199235
199134
199039
198937
198842
198743

Lauderdale County compared with nearby places

Bolivar County: 43 indexDeSoto County: 43 indexForrest County: 45 indexHancock County: 43 indexHarrison County: 43 indexHinds County: 52 indexJackson County: 44 indexLauderdale County: 35 indexLee County: 38 indexYalobusha County: 34 index
  • Under 37
  • 37 to 43
  • 43 to 44
  • 44 and over
  • No data
Median Air Quality Index (US EPA), 2025, index. Lauderdale 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), Lauderdale County, 1987 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), Lauderdale County, 1987 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/lauderdale-county-mississippi. 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), Lauderdale County, 1987 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/lauderdale-county-mississippi.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Lauderdale County, 1987 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/lauderdale-county-mississippi (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), Lauderdale County, 1987 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/lauderdale-county-mississippi. 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), Lauderdale County, 1987 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/lauderdale-county-mississippi
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/lauderdale-county-mississippi.
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 Lauderdale County?

Median Air Quality Index (US EPA) in Lauderdale County was 35 in 2025, according to the U.S. Environmental Protection Agency. That is down 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 Lauderdale County?

61 in 1999, the highest value since 1987 in this series.

Related statistics for Lauderdale County

All statistics for Lauderdale County | Lauderdale County in figures