Metro area air quality · 2025
Bartlesville, OK
Median AQI 44 (Good). 68.0% of monitored days rated Good across this metro's EPA monitoring network.
- 44
- Median AQI
- 68.0%
- Good-air days
- 1
- Unhealthy days
- 41%
- Cleaner than US metros
Bartlesville, OK posted a 2025 median AQI of 44 (Good) with 68.0% Good days
According to the U.S. EPA Air Quality System, the Bartlesville, OK CBSA recorded a median AQI of 44 across 344 monitored days in 2025, with 68.0% rated Good and 1 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 Bartlesville, OK CBSA's 68.0% Good-day share places it cleaner than 41% of US metros in 2025.
- Closest median-AQI peer
- Berlin, NH-VT (81.5% Good, median AQI 44) is the closest nationwide median-AQI peer to Bartlesville, OK.
- 2020–2025 Good-day shift
- Bartlesville, OK's Good-day share moved +0.6 points from 2020 to 2025 (median AQI +1).
- Median AQI
- Median AQI: 44
Aggregated from EPA Air Quality System (2025), 344 monitored days. EPA AQS →
The verdict
The Bartlesville, OK metro runs good on the EPA scale, more polluted than the median US metro, a median AQI of 44 with 68.0% of 344 monitored days in the Good band.
- 44
- median AQI · Good
- 68.0%
- days rated Good
- 41%
- cleaner than US metros
- 168
- worst single reading
1 day reached Unhealthy or worse across the metro's monitors in 2025.
Annual release change
What changed in the 2025 EPA annual release
- Bartlesville, OK metro's Good-day share rose from 58.5% to 68.2% between the 2024 and 2025 EPA annual releases, a change of +9.7 percentage points.
- Bartlesville, OK metro's peak single-day AQI rose from 156 to 168 between the 2024 and 2025 EPA annual releases, a change of +12 points.
- Bartlesville, OK metro's median AQI fell from 47 to 44 between the 2024 and 2025 EPA annual releases, a change of -3 points.
Insights: Bartlesville, OK metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 44 over 344 measured days in 2025, which corresponds to a Good band and a Moderate metro-wide health grade. The monitored-day split lands at 234 Good days (68%), 108 Moderate (31%), and 1 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 61 while the highest single-day reading hit 168 (Unhealthy). Metro residents averaged roughly 20.4 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 +0.6 points and the median AQI moved +1 points, which classifies the multi-year trajectory as stable. The annual record contains 1 day at Unhealthy or worse. On that day, the EPA recommends that sensitive groups limit prolonged outdoor exertion. Metros with comparable AQI profiles include Berlin, NH-VT (81.5% good, AQI 44); Bloomington, IL (66.0% good, AQI 44); Boston-Cambridge-Newton, MA-NH (71.0% good, AQI 44).
Air Quality Summary
Median AQI
44
Good
Good Days
68.0%
234 of 344 days
Max AQI
168
Unhealthy
Health Grade
Moderate
90th pct: 61
AQI Day Breakdown (2025)
Distribution of 344 monitored days across EPA AQI categories.
Good
234
68%
Moderate
108
31%
USG
1
0%
Unhealthy
1
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Health Impact Assessment
The Bartlesville, OK metro area's air quality is rated Moderate based on 68.0% good air days. There were 1 unhealthy days in 2025 when outdoor activity should be limited.
Air quality is acceptable most days, but 1 days reached "Unhealthy for Sensitive Groups" and peak AQI reached 168. Sensitive groups should monitor real-time conditions at AirNow.gov.
How does the Bartlesville, OK metro compare?
How Bartlesville, OK compares
5-Year Air Quality Trend
Air quality is stable in the Bartlesville, OK metro. Highest Good-day share: 2025 (68.2%, 234 of 343 monitored days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 232 | 111 | 0 | 43 | 101 |
| 2021 | 168 | 170 | 0 | 51 | 139 |
| 2024 | 182 | 128 | 1 | 47 | 156 |
| 2025 | 234 | 108 | 1 | 44 | 168 |
Metros with a similar median AQI
CBSA peers nationwide whose annual median AQI sits near Bartlesville, OK (44).
Berlin, NH-VT
Median AQI 44 · 81.5% Good-day share
Bloomington, IL
Median AQI 44 · 66.0% Good-day share
Boston-Cambridge-Newton, MA-NH
Median AQI 44 · 71.0% Good-day share
Bridgeport-Stamford-Norwalk, CT
Median AQI 44 · 64.7% Good-day share
Buffalo-Cheektowaga-Niagara Falls, NY
Median AQI 44 · 63.8% Good-day share
Cedar City, UT
Median AQI 44 · 74.7% Good-day share
Metros with similar unhealthy-day exposure
A second relationship type: metros whose unhealthy-or-worse day count is closest to Bartlesville, OK's 1 (independent of median AQI).
Ann Arbor, MI
1 unhealthy-or-worse days · median AQI 41
Bangor, ME
1 unhealthy-or-worse days · median AQI 33
Baraboo, WI
1 unhealthy-or-worse days · median AQI 35
Beaumont-Port Arthur, TX
1 unhealthy-or-worse days · median AQI 52
Beaver Dam, WI
1 unhealthy-or-worse days · median AQI 40
Bellingham, WA
1 unhealthy-or-worse days · median AQI 31
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 Bartlesville, OK metro area? ▼
How many unhealthy air days does Bartlesville, OK have? ▼
Is air quality in Bartlesville, OK getting better or worse? ▼
What does AQI 44 mean for health? ▼
What is the 90th percentile AQI for Bartlesville, OK? ▼
How does Bartlesville, OK 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.