Highest daily Air Quality Index (US EPA) in Kings County

Highest daily Air Quality Index (US EPA) in Kings County was 133 in 2025, according to the U.S. Environmental Protection Agency. That is down 23 from 2024.

2025, index133
Change on 2024-23
Series high6852021
Series low1261992

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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Highest daily Air Quality Index (US EPA) in Kings County, 1980 to 2025

020040060080019801987199420012008201520251980: 169 index1981: 143 index1982: 177 index1983: 200 index1984: 192 index1985: 190 index1986: 177 index1987: 197 index1988: 202 index1989: 207 index1990: 317 index1991: 169 index1992: 126 index1993: 169 index1994: 192 index1995: 163 index1996: 217 index1997: 201 index1998: 208 index1999: 206 index2000: 205 index2001: 202 index2002: 200 index2003: 187 index2004: 172 index2005: 182 index2006: 190 index2007: 219 index2008: 220 index2009: 289 index2010: 208 index2011: 185 index2012: 172 index2013: 204 index2014: 180 index2015: 182 index2016: 156 index2017: 192 index2018: 190 index2019: 508 index2020: 548 index2021: 685 index2022: 187 index2023: 148 index2024: 156 index2025: 133 index020040060080019801996201220251980: 169 index1981: 143 index1982: 177 index1983: 200 index1984: 192 index1985: 190 index1986: 177 index1987: 197 index1988: 202 index1989: 207 index1990: 317 index1991: 169 index1992: 126 index1993: 169 index1994: 192 index1995: 163 index1996: 217 index1997: 201 index1998: 208 index1999: 206 index2000: 205 index2001: 202 index2002: 200 index2003: 187 index2004: 172 index2005: 182 index2006: 190 index2007: 219 index2008: 220 index2009: 289 index2010: 208 index2011: 185 index2012: 172 index2013: 204 index2014: 180 index2015: 182 index2016: 156 index2017: 192 index2018: 190 index2019: 508 index2020: 548 index2021: 685 index2022: 187 index2023: 148 index2024: 156 index2025: 133 index
index. Source: EPA, EPA AirData annual AQI by county: highest daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 46 values
Periodindex
2025133
2024156
2023148
2022187
2021685
2020548
2019508
2018190
2017192
2016156
2015182
2014180
2013204
2012172
2011185
2010208
2009289
2008220
2007219
2006190
2005182
2004172
2003187
2002200
2001202
2000205
1999206
1998208
1997201
1996217
1995163
1994192
1993169
1992126
1991169
1990317
1989207
1988202
1987197
1986177
1985190
1984192
1983200
1982177
1981143
1980169

Kings County compared with nearby places

Amador County: 97 indexButte County: 96 indexCalaveras County: 100 indexColusa County: 96 indexDel Norte County: 70 indexEl Dorado County: 115 indexFresno County: 164 indexGlenn County: 94 indexHumboldt County: 87 indexImperial County: 426 indexInyo County: 411 indexKern County: 200 indexKings County: 133 indexLake County: 74 indexLos Angeles County: 201 indexMadera County: 136 indexMarin County: 66 indexMariposa County: 90 indexMendocino County: 81 indexMerced County: 100 indexMono County: 704 indexMonterey County: 62 indexNevada County: 108 indexOrange County: 159 indexPlacer County: 143 indexPlumas County: 120 indexRiverside County: 365 indexSacramento County: 122 indexSan Benito County: 71 indexSan Bernardino County: 207 indexSan Diego County: 161 indexSan Joaquin County: 93 indexSan Luis Obispo County: 119 indexSanta Barbara County: 87 indexSanta Cruz County: 71 indexShasta County: 154 indexSiskiyou County: 166 indexSolano County: 61 indexSonoma County: 39 indexStanislaus County: 115 indexSutter County: 100 indexTehama County: 108 indexTrinity County: 164 indexTulare County: 147 indexTuolumne County: 105 indexVentura County: 131 indexYolo County: 100 index
  • Under 79
  • 79 to 96
  • 96 to 110
  • 110 to 140
  • 140 to 160
  • 160 and over
  • No data
Highest daily Air Quality Index (US EPA), 2025, index. Kings 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

Highest daily Air Quality Index (AQI) value recorded in a US county during the year, from the EPA AirData annual summaries. Values above 500 are beyond the AQI scale and are published as EPA computes them.

A single day decides the value, so one wildfire or dust event can set it. Dust from the dry Owens Lake bed puts Inyo and Mono counties in California in the thousands. 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: highest 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: highest daily AQI (Highest daily Air Quality Index (US EPA), Kings 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: highest daily AQI, Highest daily Air Quality Index (US EPA), Kings 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/highest-daily-air-quality-index/kings-county-california. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Environmental Protection Agency. 2026. EPA AirData annual AQI by county: highest daily AQI. Highest daily Air Quality Index (US EPA), Kings 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/highest-daily-air-quality-index/kings-county-california.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Kings County, 1980 to 2025 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/highest-daily-air-quality-index/kings-county-california (Accessed: 12 October 2026).

BibTeX
@misc{environmental_highest_daily_air_quality_2025,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Kings 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/highest-daily-air-quality-index/kings-county-california. Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: highest 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: highest daily AQI: Highest daily Air Quality Index (US EPA), Kings 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/highest-daily-air-quality-index/kings-county-california
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/kings-county-california.
N1  - Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: highest 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 highest daily Air Quality Index (US EPA) in Kings County?

Highest daily Air Quality Index (US EPA) in Kings County was 133 in 2025, according to the U.S. Environmental Protection Agency. That is down 23 from 2024.

Where does this figure come from?

U.S. Environmental Protection Agency. EPA AirData annual AQI by county: highest daily AQI. Retrieved by Invokely on 2026-10-12.

What was the highest highest daily Air Quality Index (US EPA) in Kings County?

685 in 2021, the highest value since 1980 in this series.

Related statistics for Kings County

All statistics for Kings County | Kings County in figures