Metro area air quality · 2025
Youngstown-Warren-Boardman, OH-PA
Median AQI 47 (Good). 57.5% of monitored days rated Good across this metro's EPA monitoring network.
- 47
- Median AQI
- 57.5%
- Good-air days
- 0
- Unhealthy days
- 22%
- Cleaner than US metros
Youngstown-Warren-Boardman, OH-PA posted a 2025 median AQI of 47 (Good) with 57.5% Good days
According to the U.S. EPA Air Quality System, the Youngstown-Warren-Boardman, OH-PA CBSA recorded a median AQI of 47 across 365 monitored days in 2025, with 57.5% 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 Youngstown-Warren-Boardman, OH-PA CBSA's 57.5% Good-day share places it cleaner than 22% of US metros in 2025.
- Closest median-AQI peer
- Charleston-North Charleston, SC (60.3% Good, median AQI 47) is the closest nationwide median-AQI peer to Youngstown-Warren-Boardman, OH-PA.
- 2020–2025 Good-day shift
- Youngstown-Warren-Boardman, OH-PA's Good-day share moved -3.9 points from 2020 to 2025 (median AQI +2).
- Median AQI
- Median AQI: 47
Aggregated from EPA Air Quality System (2025), 365 monitored days. EPA AQS →
The verdict
Youngstown-Warren-Boardman, OH-PA lands in the lower Good-day tercile (57.5% Good), a thinner clean-air share than most CBSA peers here. On the EPA scale the metro runs good, among the more polluted US metros, with a median AQI of 47 and 57.5% of 365 monitored days in the Good band.
- 47
- median AQI · Good
- 57.5%
- days rated Good
- 22%
- cleaner than US metros
- 130
- 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
- Youngstown-Warren-Boardman, OH-PA metro's peak single-day AQI rose from 97 to 130 between the 2024 and 2025 EPA annual releases, a change of +33 points.
- Youngstown-Warren-Boardman, OH-PA metro's Good-day share fell from 59.8% to 58.3% between the 2024 and 2025 EPA annual releases, a change of -1.5 percentage points.
Youngstown-Warren-Boardman, OH-PA lands in the lower Good-day tercile (57.5% Good), a thinner clean-air share than most CBSA peers here. Signature read: 57.5% Good-day share (low tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 47 over 365 measured days in 2025 (Good / Moderate). The monitored-day split lands at 210 Good (58%), 150 Moderate (41%), and 5 Unhealthy-for-Sensitive-Groups (1%). The 90th-percentile AQI finished at 74; the highest single-day reading hit 130 (USG).
Across 2020–2025, Good-day share shifted -3.9 points and median AQI moved +2 (worsening). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Charleston-North Charleston, SC (60.3% good, AQI 47); Columbia, SC (58.1% good, AQI 47); Corsicana, TX (59.2% good, AQI 47).
Air Quality Summary
Median AQI
47
Good
Good Days
57.5%
210 of 365 days
Max AQI
130
USG
Health Grade
Moderate
90th pct: 74
AQI Day Breakdown (2025)
Distribution of 365 monitored days across EPA AQI categories.
Good
210
58%
Moderate
150
41%
USG
5
1%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Health Impact Assessment
The Youngstown-Warren-Boardman, OH-PA metro area's air quality is rated Moderate based on 57.5% 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 Youngstown-Warren-Boardman, OH-PA metro compare?
How Youngstown-Warren-Boardman, OH-PA compares
5-Year Air Quality Trend
Air quality is worsening in the Youngstown-Warren-Boardman, OH-PA metro. Highest Good-day share: 2020 (62.3%, 226 of 363 monitored days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 226 | 136 | 1 | 45 | 154 |
| 2021 | 184 | 178 | 0 | 49 | 147 |
| 2022 | 214 | 147 | 0 | 47 | 136 |
| 2023 | 171 | 186 | 2 | 52 | 226 |
| 2024 | 219 | 147 | 0 | 46 | 97 |
| 2025 | 210 | 150 | 0 | 47 | 130 |
Metros with a similar median AQI
CBSA peers nationwide whose annual median AQI sits near Youngstown-Warren-Boardman, OH-PA (47).
Charleston-North Charleston, SC
Median AQI 47 · 60.3% Good-day share
Columbia, SC
Median AQI 47 · 58.1% Good-day share
Corsicana, TX
Median AQI 47 · 59.2% Good-day share
Dayton, OH
Median AQI 47 · 57.0% Good-day share
Evansville, IN-KY
Median AQI 47 · 57.5% Good-day share
Farmington, NM
Median AQI 47 · 68.0% Good-day share
Metros with similar unhealthy-day exposure
A second relationship type: metros whose unhealthy-or-worse day count is closest to Youngstown-Warren-Boardman, OH-PA'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
Akron, OH
0 unhealthy-or-worse days · median AQI 45
Albany, GA
0 unhealthy-or-worse days · median AQI 46
Albany, OR
0 unhealthy-or-worse days · median AQI 27
Frequently Asked Questions
How many unhealthy air days does Youngstown-Warren-Boardman, OH-PA have? ▼
What is the air quality in the Youngstown-Warren-Boardman, OH-PA metro area? ▼
Is air quality in Youngstown-Warren-Boardman, OH-PA getting better or worse? ▼
What does AQI 47 mean for health? ▼
How does Youngstown-Warren-Boardman, OH-PA compare to other metro areas? ▼
What is the 90th percentile AQI for Youngstown-Warren-Boardman, OH-PA? ▼
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset for Youngstown-Warren-Boardman, OH-PA, 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, Youngstown-Warren-Boardman, OH-PA · 2020–2025