Metro area air quality · 2024

Corpus Christi, TX

Median AQI 51 (Moderate). 48.6% of monitored days rated Good across this metro's EPA monitoring network.

51
Median AQI
48.6%
Good-air days
1
Unhealthy days
12%
Cleaner than US metros

Aggregated from EPA Air Quality System (2024), 366 monitored days. EPA AQS → · NOAA →

Insights: Corpus Christi, TX metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 51 over 366 measured days in 2024, which corresponds to a Moderate band and a Poor metro-wide health grade. The monitored-day split lands at 178 Good days (49%), 172 Moderate (47%), and 15 Unhealthy-for-Sensitive-Groups (4%). The 90th-percentile AQI finished at 81 while the highest single-day reading hit 153 (Unhealthy). Metro residents averaged roughly 14.6 clean-air days per 30-day window across the reporting year.

Across the 2020–2024 trend window, good days shifted by -49 and the median AQI moved +5 points, which classifies the multi-year trajectory as worsening. The metro recorded 1 unhealthy-or-worse days combined, on those days the EPA recommends that sensitive groups limit prolonged outdoor exertion, and many schools and athletic programs adjust outdoor activity accordingly. Metros with comparable AQI profiles include Durham-Chapel Hill, NC (46.2% good, AQI 51); Grand Rapids-Wyoming, MI (48.6% good, AQI 51); Jacksonville, FL (49.7% good, AQI 51).

Air Quality Summary

Median AQI

51

Moderate

Good Days

48.6%

178 of 366 days

Max AQI

153

Unhealthy

Health Grade

Poor

90th pct: 81

AQI Day Breakdown (2024)

Distribution of 366 monitored days across EPA AQI categories.

Good

178

49%

Moderate

172

47%

USG

15

4%

Unhealthy

1

0%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Poor

The Corpus Christi, TX metro area's air quality is rated Poor based on 48.6% good air days. There were 1 unhealthy days in 2024 when outdoor activity should be limited.

Air quality is acceptable most days, but 15 days reached "Unhealthy for Sensitive Groups" and peak AQI reached 153. Sensitive groups should monitor real-time conditions at AirNow.gov.

How does the Corpus Christi, TX metro compare?

How Corpus Christi, TX compares

Good-day share worse than US avg
Corpus Christi, TX 48.6%
Durham-Chapel Hill, NC 46.2%
US average 70.2%
Median AQI worse than US avg
Corpus Christi, TX 51
Durham-Chapel Hill, NC 51
US average 41
Unhealthy days / yr about average
Corpus Christi, TX 1
Durham-Chapel Hill, NC 0
US average 1

5-Year Air Quality Trend

Air quality is worsening in the Corpus Christi, TX metro. Best year: 2020 (227 good days).

Year Good Moderate Unhealthy Median AQI
2020 227 137 2 46
2021 200 162 0 47
2022 208 155 0 47
2023 196 167 0 48
2024 178 172 1 51

Metros with Similar Air Quality

Metro areas across the US with a similar median AQI to Corpus Christi, TX.

Durham-Chapel Hill, NC

AQI 51 · 46.2% good

51

Grand Rapids-Wyoming, MI

AQI 51 · 48.6% good

51

Jacksonville, FL

AQI 51 · 49.7% good

51

Lafayette, LA

AQI 51 · 48.9% good

51

Louisville/Jefferson County, KY-IN

AQI 51 · 47.3% good

51

Macon, GA

AQI 51 · 48.9% good

51

More Air Quality Data

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Worst Air Quality

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All Metro Areas

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Best and Worst City Air

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Air Quality Guides

Learn more about air quality monitoring, pollutants, and health impacts.

Understanding AQI

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Best & Worst City Air Quality

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Health Effects of Air Pollution

How PM2.5 and ozone exposure affects respiratory and cardiovascular health.

Frequently Asked Questions

What is the air quality in the Corpus Christi, TX metro area? ▼
The Corpus Christi, TX metro area has a median Air Quality Index (AQI) of 51, rated "Moderate." 48.6% of monitored days (178 out of 366) had good air quality in 2024.
How many unhealthy air days does Corpus Christi, TX have? ▼
In 2024, the Corpus Christi, TX metro area recorded 1 unhealthy air days (1 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 153.
Is air quality in Corpus Christi, TX getting better or worse? ▼
Air quality in the Corpus Christi, TX metro is worsening based on 5-year trends (2020-2024). Best year: 2020 with 227 good days. Worst year: 2024 with 178 good days.
What does AQI 51 mean for health? ▼
An AQI of 51 is "Moderate", air quality is acceptable, but some pollutants may pose a moderate health concern for a small number of sensitive individuals.
What is the 90th percentile AQI for Corpus Christi, TX? ▼
The 90th percentile AQI for the Corpus Christi, TX metro area is 81, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 153 (Unhealthy).
How does Corpus Christi, TX compare to other metro areas? ▼
The Corpus Christi, TX metro has 48.6% good air days. Similar metros: Durham-Chapel Hill, NC (46.2% good), Grand Rapids-Wyoming, MI (48.6% good), Jacksonville, FL (49.7% good).

Data Sources

Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset, 2020–2024. The AQS collects ambient air monitoring data from state, local, and tribal monitoring agencies across the United States.

Metrics: Air Quality Index (AQI) is calculated using EPA-standard breakpoints for six criteria pollutants: PM2.5, PM10, Ozone, NO2, CO, and SO2. Median AQI, max AQI, and 90th percentile AQI are computed from daily measurements. Good days percentage reflects days with AQI 0–50.

Coverage: 501 metro areas (Core Based Statistical Areas). Only metros with active monitoring stations are included. Unmonitored areas are not represented.

Read our methodology , how this data is sourced, computed, and verified.

Source: U.S. EPA, AirNow / AQS Air Quality Index readings and pollutant concentrations · 2025