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
Bartlesville, OK's peak reading 168 is in the upper max-AQI tercile among CBSA metros here. On the EPA scale the metro runs good, more polluted than the median US metro, with a median AQI of 44 and 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.
Bartlesville, OK's peak reading 168 is in the upper max-AQI tercile among CBSA metros here. Signature read: peak AQI 168 (high tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 44 over 344 measured days in 2025 (Good / Moderate). The monitored-day split lands at 234 Good (68%), 108 Moderate (31%), and 1 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 61; the highest single-day reading hit 168 (Unhealthy).
Across 2020–2025, Good-day share shifted +0.6 points and median AQI moved +1 (stable). The annual record contains 1 day at Unhealthy or worse. 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
Frequently Asked Questions
What is the 90th percentile AQI for Bartlesville, OK? ▼
How many unhealthy air days does Bartlesville, OK have? ▼
What is the air quality in the Bartlesville, OK metro area? ▼
Is air quality in Bartlesville, OK getting better or worse? ▼
What does AQI 44 mean for health? ▼
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 for Bartlesville, OK, 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, Bartlesville, OK · 2020–2025