Metro area air quality · 2025
Naples-Immokalee-Marco Island, FL
Median AQI 43 (Good). 72.0% of monitored days rated Good across this metro's EPA monitoring network.
- 43
- Median AQI
- 72.0%
- Good-air days
- 0
- Unhealthy days
- 49%
- Cleaner than US metros
Naples-Immokalee-Marco Island, FL posted a 2025 median AQI of 43 (Good) with 72.0% Good days
According to the U.S. EPA Air Quality System, the Naples-Immokalee-Marco Island, FL CBSA recorded a median AQI of 43 across 365 monitored days in 2025, with 72.0% 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 Naples-Immokalee-Marco Island, FL CBSA's 72.0% Good-day share places it cleaner than 49% of US metros in 2025.
- Closest median-AQI peer
- Ashtabula, OH (81.2% Good, median AQI 43) is the closest nationwide median-AQI peer to Naples-Immokalee-Marco Island, FL.
- 2020–2025 Good-day shift
- Naples-Immokalee-Marco Island, FL's Good-day share moved -1.3 points from 2020 to 2025 (median AQI +2).
- Median AQI
- Median AQI: 43
Aggregated from EPA Air Quality System (2025), 365 monitored days. EPA AQS →
The verdict
Naples-Immokalee-Marco Island, FL's peak reading 71 stays in the lower max-AQI tercile on this extract. On the EPA scale the metro runs good, more polluted than the median US metro, with a median AQI of 43 and 72.0% of 365 monitored days in the Good band.
- 43
- median AQI · Good
- 72.0%
- days rated Good
- 49%
- cleaner than US metros
- 71
- 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
- Naples-Immokalee-Marco Island, FL metro's Good-day share fell from 76.2% to 72.1% between the 2024 and 2025 EPA annual releases, a change of -4.2 percentage points.
- Naples-Immokalee-Marco Island, FL metro's peak single-day AQI fell from 87 to 71 between the 2024 and 2025 EPA annual releases, a change of -16 points.
Naples-Immokalee-Marco Island, FL's peak reading 71 stays in the lower max-AQI tercile on this extract. Signature read: peak AQI 71 (low tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 43 over 365 measured days in 2025 (Good / Moderate). The monitored-day split lands at 263 Good (72%), 102 Moderate (28%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 55; the highest single-day reading hit 71 (Moderate).
Across 2020–2025, Good-day share shifted -1.3 points and median AQI moved +2 (stable). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Ashtabula, OH (81.2% good, AQI 43); Bloomington, IN (67.7% good, AQI 43); Champaign-Urbana, IL (65.8% good, AQI 43).
Air Quality Summary
Median AQI
43
Good
Good Days
72.0%
263 of 365 days
Max AQI
71
Moderate
Health Grade
Moderate
90th pct: 55
AQI Day Breakdown (2025)
Distribution of 365 monitored days across EPA AQI categories.
Good
263
72%
Moderate
102
28%
USG
0
0%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Health Impact Assessment
The Naples-Immokalee-Marco Island, FL metro area's air quality is rated Moderate based on 72.0% 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 Naples-Immokalee-Marco Island, FL metro compare?
How Naples-Immokalee-Marco Island, FL compares
5-Year Air Quality Trend
Air quality is stable in the Naples-Immokalee-Marco Island, FL metro. Highest Good-day share: 2022 (79.8%, 277 of 347 monitored days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 267 | 97 | 0 | 41 | 87 |
| 2021 | 278 | 85 | 0 | 42 | 81 |
| 2022 | 277 | 70 | 0 | 40 | 82 |
| 2023 | 259 | 100 | 0 | 43 | 144 |
| 2024 | 279 | 87 | 0 | 42 | 87 |
| 2025 | 263 | 102 | 0 | 43 | 71 |
Metros with a similar median AQI
CBSA peers nationwide whose annual median AQI sits near Naples-Immokalee-Marco Island, FL (43).
Ashtabula, OH
Median AQI 43 · 81.2% Good-day share
Bloomington, IN
Median AQI 43 · 67.7% Good-day share
Champaign-Urbana, IL
Median AQI 43 · 65.8% Good-day share
Cleveland, MS
Median AQI 43 · 71.9% Good-day share
Columbus, IN
Median AQI 43 · 72.6% Good-day share
Durham-Chapel Hill, NC
Median AQI 43 · 71.5% Good-day share
Metros with similar unhealthy-day exposure
A second relationship type: metros whose unhealthy-or-worse day count is closest to Naples-Immokalee-Marco Island, FL'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
What is the 90th percentile AQI for Naples-Immokalee-Marco Island, FL? ▼
How many unhealthy air days does Naples-Immokalee-Marco Island, FL have? ▼
What is the air quality in the Naples-Immokalee-Marco Island, FL metro area? ▼
Is air quality in Naples-Immokalee-Marco Island, FL getting better or worse? ▼
What does AQI 43 mean for health? ▼
How does Naples-Immokalee-Marco Island, FL 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 Naples-Immokalee-Marco Island, FL, 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, Naples-Immokalee-Marco Island, FL · 2020–2025