Metro area air quality · 2025
Pueblo, CO
Median AQI 45 (Good). 73.4% of monitored days rated Good across this metro's EPA monitoring network.
- 45
- Median AQI
- 73.4%
- Good-air days
- 0
- Unhealthy days
- 52%
- Cleaner than US metros
Pueblo, CO posted a 2025 median AQI of 45 (Good) with 73.4% Good days
According to the U.S. EPA Air Quality System, the Pueblo, CO CBSA recorded a median AQI of 45 across 365 monitored days in 2025, with 73.4% rated Good and 0 unhealthy or worse. This is an annual metro comparison, not a live advisory.
Data source EPA Air Quality System (AQS)
- Cleaner than US metros
- The Pueblo, CO CBSA's 73.4% Good-day share places it cleaner than 52% of US metros in 2025.
- Closest median-AQI peer
- Akron, OH (61.6% Good, median AQI 45) is the closest nationwide median-AQI peer to Pueblo, CO.
- 2020–2025 Good-day shift
- Pueblo, CO's Good-day share moved -13.9 points from 2020 to 2025 (median AQI +23).
- Median AQI
- Median AQI: 45
Aggregated from EPA Air Quality System (2025), 365 monitored days. EPA AQS →
The verdict
The Pueblo, CO metro runs good on the EPA scale, cleaner than the median US metro, a median AQI of 45 with 73.4% of 365 monitored days in the Good band.
- 45
- median AQI · Good
- 73.4%
- days rated Good
- 52%
- cleaner than US metros
- 101
- worst single reading
No day crossed into the Unhealthy tier across the metro's monitors in 2025.
Annual release change
What changed in the 2025 EPA annual release
- Pueblo, CO metro's peak single-day AQI fell from 143 to 101 between the 2024 and 2025 EPA annual releases, a change of -42 points.
- Pueblo, CO metro's Good-day share rose from 69.6% to 73.6% between the 2024 and 2025 EPA annual releases, a change of +4.1 percentage points.
Insights: Pueblo, CO metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 45 over 365 measured days in 2025, which corresponds to a Good band and a Moderate metro-wide health grade. The monitored-day split lands at 268 Good days (73%), 96 Moderate (26%), and 1 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 64 while the highest single-day reading hit 101 (USG). Metro residents averaged roughly 22.0 clean-air days per 30-day window across the reporting year.
Across the 2020–2025 trend window, the share of monitored days rated Good shifted by -13.9 points (measured against 96 monitored days in 2020 and 364 in 2025, so raw day counts are not comparable) and the median AQI moved +23 points, which classifies the multi-year trajectory as worsening. The metro recorded no Unhealthy-tier days in this annual dataset. Metros with comparable AQI profiles include Akron, OH (61.6% good, AQI 45); Ardmore, OK (67.9% good, AQI 45); Asheville, NC (69.9% good, AQI 45).
Air Quality Summary
Median AQI
45
Good
Good Days
73.4%
268 of 365 days
Max AQI
101
USG
Health Grade
Moderate
90th pct: 64
AQI Day Breakdown (2025)
Distribution of 365 monitored days across EPA AQI categories.
Good
268
73%
Moderate
96
26%
USG
1
0%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Health Impact Assessment
The Pueblo, CO metro area's air quality is rated Moderate based on 73.4% good air days. No unhealthy air days were recorded in 2025.
Air quality is generally acceptable. Unusually sensitive people should monitor real-time conditions at AirNow.gov during high-pollution events.
How does the Pueblo, CO metro compare?
How Pueblo, CO compares
5-Year Air Quality Trend
Air quality is worsening in the Pueblo, CO metro. Best year: 2022 (317 good days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 84 | 12 | 0 | 22 | 67 |
| 2021 | 203 | 16 | 0 | 23 | 138 |
| 2022 | 317 | 29 | 0 | 21 | 121 |
| 2023 | 277 | 84 | 0 | 43 | 115 |
| 2024 | 249 | 109 | 0 | 44 | 143 |
| 2025 | 268 | 96 | 0 | 45 | 101 |
Metros with a similar median AQI
CBSA peers nationwide whose annual median AQI sits near Pueblo, CO (45).
Akron, OH
Median AQI 45 · 61.6% Good-day share
Ardmore, OK
Median AQI 45 · 67.9% Good-day share
Asheville, NC
Median AQI 45 · 69.9% Good-day share
Cheyenne, WY
Median AQI 45 · 75.1% Good-day share
Clinton, IA
Median AQI 45 · 59.5% Good-day share
Fort Dodge, IA
Median AQI 45 · 59.2% Good-day share
Metros with similar unhealthy-day exposure
A second relationship type: metros whose unhealthy-or-worse day count is closest to Pueblo, CO's 0 (independent of median AQI).
Aberdeen, SD
0 unhealthy-or-worse days · median AQI 27
Aberdeen, WA
0 unhealthy-or-worse days · median AQI 22
Adrian, MI
0 unhealthy-or-worse days · median AQI 41
Albany, GA
0 unhealthy-or-worse days · median AQI 46
Albany, OR
0 unhealthy-or-worse days · median AQI 27
Albany-Schenectady-Troy, NY
0 unhealthy-or-worse days · median AQI 41
More Air Quality Data
Explore EPA air quality rankings and guides across U.S. metros and counties.
Cleanest Metro Areas
U.S. metros ranked by their share of Good air-quality days.
Worst Air Quality
Counties and metros with the most unhealthy air days.
All Metro Areas
Annual AQI by CBSA for every monitored U.S. metro area.
Best and Worst City Air
What drives urban air quality and how metro areas compare.
Air Quality Guides
Frequently Asked Questions
What is the air quality in the Pueblo, CO metro area? ▼
How many unhealthy air days does Pueblo, CO have? ▼
Is air quality in Pueblo, CO getting better or worse? ▼
What does AQI 45 mean for health? ▼
What is the 90th percentile AQI for Pueblo, CO? ▼
How does Pueblo, CO compare to other metro areas? ▼
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset, 2020–2025. See our methodology for how AQI, median, and coverage figures are computed.
Read our methodology , how this data is sourced, computed, and verified.
Source: U.S. EPA Air Quality System (AQS) Annual AQI by CBSA summary files (metro-level) · 2020–2025
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Every figure on PlainAirData is rendered directly from EPA AQS air-quality monitoring data, no number is typed in by an editor. This page draws directly on EPA AQS air-quality monitoring data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.