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

Highest daily Air Quality Index (US EPA) in Nueces County was 137 in 2025, according to the U.S. Environmental Protection Agency. That is down 16 from 2024. That is the 20th highest of 45 counties in 2025.

2025, index137
Change on 2024-16
Series high2321980
Series low942016

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 Nueces County, 1980 to 2025

5010015020025019801987199420012008201520251980: 232 index1981: 164 index1982: 195 index1983: 164 index1984: 202 index1985: 201 index1986: 154 index1987: 190 index1988: 182 index1989: 156 index1990: 154 index1991: 151 index1992: 169 index1993: 197 index1994: 192 index1995: 192 index1996: 169 index1997: 154 index1998: 182 index1999: 164 index2000: 161 index2001: 169 index2002: 187 index2003: 169 index2004: 169 index2005: 113 index2006: 147 index2007: 126 index2008: 129 index2009: 108 index2010: 126 index2011: 154 index2012: 147 index2013: 100 index2014: 105 index2015: 112 index2016: 94 index2017: 97 index2018: 99 index2019: 107 index2020: 162 index2021: 113 index2022: 106 index2023: 101 index2024: 153 index2025: 137 index5010015020025019801996201220251980: 232 index1981: 164 index1982: 195 index1983: 164 index1984: 202 index1985: 201 index1986: 154 index1987: 190 index1988: 182 index1989: 156 index1990: 154 index1991: 151 index1992: 169 index1993: 197 index1994: 192 index1995: 192 index1996: 169 index1997: 154 index1998: 182 index1999: 164 index2000: 161 index2001: 169 index2002: 187 index2003: 169 index2004: 169 index2005: 113 index2006: 147 index2007: 126 index2008: 129 index2009: 108 index2010: 126 index2011: 154 index2012: 147 index2013: 100 index2014: 105 index2015: 112 index2016: 94 index2017: 97 index2018: 99 index2019: 107 index2020: 162 index2021: 113 index2022: 106 index2023: 101 index2024: 153 index2025: 137 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
2025137
2024153
2023101
2022106
2021113
2020162
2019107
201899
201797
201694
2015112
2014105
2013100
2012147
2011154
2010126
2009108
2008129
2007126
2006147
2005113
2004169
2003169
2002187
2001169
2000161
1999164
1998182
1997154
1996169
1995192
1994192
1993197
1992169
1991151
1990154
1989156
1988182
1987190
1986154
1985201
1984202
1983164
1982195
1981164
1980232

Nueces County compared with nearby places

Atascosa County: 92 indexBell County: 140 indexBexar County: 154 indexBowie County: 107 indexBrazoria County: 143 indexBrazos County: 78 indexBrewster County: 164 indexCameron County: 139 indexCollin County: 156 indexCulberson County: 159 indexDallas County: 304 indexDenton County: 179 indexEctor County: 183 indexEllis County: 93 indexEl Paso County: 2,122 indexGalveston County: 179 indexGregg County: 115 indexHarris County: 172 indexHarrison County: 100 indexHidalgo County: 140 indexHood County: 122 indexHunt County: 119 indexJefferson County: 160 indexJohnson County: 101 indexKarnes County: 32 indexKaufman County: 126 indexKleberg County: 107 indexLubbock County: 167 indexMcLennan County: 142 indexMaverick County: 90 indexMontgomery County: 133 indexNavarro County: 107 indexNueces County: 137 indexOrange County: 90 indexParker County: 147 indexPolk County: 105 indexPotter County: 85 indexRandall County: 97 indexRockwall County: 108 indexSmith County: 93 indexTarrant County: 162 indexTravis County: 129 indexVictoria County: 100 indexWebb County: 121 indexWilson County: 41 index
  • Under 90
  • 90 to 110
  • 110 to 130
  • 130 to 140
  • 140 to 160
  • 160 and over
  • No data
Highest daily Air Quality Index (US EPA), 2025, index. Nueces 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), Nueces 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), Nueces 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/nueces-county-texas. 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), Nueces 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/nueces-county-texas.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Nueces 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/nueces-county-texas (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), Nueces 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/nueces-county-texas. 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), Nueces 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/nueces-county-texas
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/nueces-county-texas.
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 Nueces County?

Highest daily Air Quality Index (US EPA) in Nueces County was 137 in 2025, according to the U.S. Environmental Protection Agency. That is down 16 from 2024. That is the 20th highest of 45 counties in 2025.

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 Nueces County?

232 in 1980, the highest value since 1980 in this series.

Related statistics for Nueces County

All statistics for Nueces County | Nueces County in figures