Metro area air quality · 2025
Lawrence, KS
Median AQI 41 (Good). 90.7% of monitored days rated Good across this metro's EPA monitoring network.
- 41
- Median AQI
- 90.7%
- Good-air days
- 0
- Unhealthy days
- 84%
- Cleaner than US metros
Aggregated from EPA Air Quality System (2025), 162 monitored days. EPA AQS →
The verdict
The Lawrence, KS metro runs good on the EPA scale, cleaner than most US metros, a median AQI of 41 with 90.7% of 162 monitored days in the Good band.
- 41
- median AQI · Good
- 90.7%
- days rated Good
- 84%
- cleaner than US metros
- 101
- worst single reading
No day crossed into the Unhealthy tier across the metro's monitors in 2025.
Insights: Lawrence, KS metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 41 over 162 measured days in 2025, which corresponds to a Good band and a Excellent metro-wide health grade. The monitored-day split lands at 147 Good days (91%), 14 Moderate (9%), and 1 Unhealthy-for-Sensitive-Groups (1%). The 90th-percentile AQI finished at 50 while the highest single-day reading hit 101 (USG). Metro residents averaged roughly 27.2 clean-air days per 30-day window across the reporting year.
Across the 2025–2025 trend window, good days shifted by +0 and the median AQI moved +0 points, which classifies the multi-year trajectory as tracked. The metro avoided any Unhealthy-tier days entirely, an outcome that typically reflects favorable wind patterns, lower industrial density, or effective regional emission controls. Metros with comparable AQI profiles include Adrian, MI (77.3% good, AQI 41); Altoona, PA (71.9% good, AQI 41); Ann Arbor, MI (76.0% good, AQI 41).
Air Quality Summary
Median AQI
41
Good
Good Days
90.7%
147 of 162 days
Max AQI
101
USG
Health Grade
Excellent
90th pct: 50
AQI Day Breakdown (2025)
Distribution of 162 monitored days across EPA AQI categories.
Good
147
91%
Moderate
14
9%
USG
1
1%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Health Impact Assessment
The Lawrence, KS metro area's air quality is rated Excellent based on 90.7% 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 Lawrence, KS metro compare?
How Lawrence, KS compares
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Metro areas across the US with a similar median AQI to Lawrence, KS.
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All Metro Areas
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Air Quality Guides
Frequently Asked Questions
What is the air quality in the Lawrence, KS metro area? ▼
How many unhealthy air days does Lawrence, KS have? ▼
Is air quality in Lawrence, KS getting better or worse? ▼
What does AQI 41 mean for health? ▼
What is the 90th percentile AQI for Lawrence, KS? ▼
How does Lawrence, KS 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
Every figure on PlainAir 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.