Median Air Quality Index (US EPA) in Tulare County

Median Air Quality Index (US EPA) in Tulare County was 64 in 2025, according to the U.S. Environmental Protection Agency. That is down 7 from 2024.

2025, index64
Change on 2024-7
Series high1082002
Series low491983

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 Tulare County, 1980 to 2025

40608010012019801987199420012008201520251980: 68 index1981: 57 index1982: 57 index1983: 49 index1984: 57 index1985: 74 index1986: 79 index1987: 87 index1988: 87 index1989: 87 index1990: 84 index1991: 70 index1992: 67 index1993: 67 index1994: 68 index1995: 75 index1996: 58 index1997: 67 index1998: 52 index1999: 97 index2000: 87 index2001: 95 index2002: 108 index2003: 101 index2004: 96 index2005: 85 index2006: 90 index2007: 100 index2008: 97 index2009: 84 index2010: 72 index2011: 84 index2012: 81 index2013: 84 index2014: 84 index2015: 80 index2016: 77 index2017: 81 index2018: 79 index2019: 67 index2020: 80 index2021: 81 index2022: 77 index2023: 69 index2024: 71 index2025: 64 index40608010012019801996201220251980: 68 index1981: 57 index1982: 57 index1983: 49 index1984: 57 index1985: 74 index1986: 79 index1987: 87 index1988: 87 index1989: 87 index1990: 84 index1991: 70 index1992: 67 index1993: 67 index1994: 68 index1995: 75 index1996: 58 index1997: 67 index1998: 52 index1999: 97 index2000: 87 index2001: 95 index2002: 108 index2003: 101 index2004: 96 index2005: 85 index2006: 90 index2007: 100 index2008: 97 index2009: 84 index2010: 72 index2011: 84 index2012: 81 index2013: 84 index2014: 84 index2015: 80 index2016: 77 index2017: 81 index2018: 79 index2019: 67 index2020: 80 index2021: 81 index2022: 77 index2023: 69 index2024: 71 index2025: 64 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 46 values
Periodindex
202564
202471
202369
202277
202181
202080
201967
201879
201781
201677
201580
201484
201384
201281
201184
201072
200984
200897
2007100
200690
200585
200496
2003101
2002108
200195
200087
199997
199852
199767
199658
199575
199468
199367
199267
199170
199084
198987
198887
198787
198679
198574
198457
198349
198257
198157
198068

Tulare County compared with nearby places

Amador County: 38 indexButte County: 46 indexCalaveras County: 40 indexColusa County: 40 indexDel Norte County: 32 indexEl Dorado County: 40 indexFresno County: 61 indexGlenn County: 40 indexHumboldt County: 38 indexImperial County: 64 indexInyo County: 55 indexKern County: 70 indexKings County: 57 indexLake County: 31 indexLos Angeles County: 74 indexMadera County: 50 indexMarin County: 21 indexMariposa County: 44 indexMendocino County: 38 indexMerced County: 50 indexMono County: 21 indexMonterey County: 38 indexNevada County: 42 indexOrange County: 53 indexPlacer County: 52 indexPlumas County: 45 indexRiverside County: 80 indexSacramento County: 49 indexSan Benito County: 39 indexSan Bernardino County: 77 indexSan Diego County: 67 indexSan Joaquin County: 46 indexSan Luis Obispo County: 50 indexSanta Barbara County: 52 indexSanta Cruz County: 35 indexShasta County: 44 indexSiskiyou County: 37 indexSolano County: 33 indexSonoma County: 9 indexStanislaus County: 51 indexSutter County: 47 indexTehama County: 38 indexTrinity County: 31 indexTulare County: 64 indexTuolumne County: 39 indexVentura County: 50 indexYolo County: 47 index
  • Under 36
  • 36 to 39
  • 39 to 45
  • 45 to 50
  • 50 to 58
  • 58 and over
  • No data
Median Air Quality Index (US EPA), 2025, index. Tulare 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), Tulare County, 1980 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), Tulare County, 1980 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/tulare-county-california. 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), Tulare County, 1980 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/tulare-county-california.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Tulare County, 1980 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/tulare-county-california (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), Tulare County, 1980 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/tulare-county-california. 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), Tulare County, 1980 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/tulare-county-california
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/tulare-county-california.
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 Tulare County?

Median Air Quality Index (US EPA) in Tulare County was 64 in 2025, according to the U.S. Environmental Protection Agency. That is down 7 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 Tulare County?

108 in 2002, the highest value since 1980 in this series.

Related statistics for Tulare County

All statistics for Tulare County | Tulare County in figures