Air Quality Rankings for Tennessee 2026

Tennessee has 23 cities with EPA air quality data. Lawrence, Tennessee has the cleanest air with a 5-year average AQI of 33. Davidson, Tennessee has the highest AQI at 52.

#	City	5yr Avg AQI	Current AQI	Worst Pollutant	Trend	Grade
1	Lawrence, Tennessee	33	41	PM2.5	Improving	B
2	Maury, Tennessee	33	36	PM2.5	Improving	B
3	Putnam, Tennessee	34	38	PM2.5	Improving	B
4	Claiborne, Tennessee	35	38	Ozone	Stable	B
5	Montgomery, Tennessee	35	36	PM2.5	Improving	B
6	DeKalb, Tennessee	35	37	Ozone	Stable	B
7	Roane, Tennessee	36	36	PM2.5	Improving	A
8	Dyer, Tennessee	37	39	PM2.5	Improving	B
9	Madison, Tennessee	38	43	PM2.5	Stable	B
10	Wilson, Tennessee	38	42	Ozone	Stable	B
11	McMinn, Tennessee	39	39	PM2.5	Improving	B
12	Anderson, Tennessee	39	41	Ozone	Stable	B
13	Williamson, Tennessee	40	43	Ozone	Worsening	C
14	Sullivan, Tennessee	41	42	PM2.5	Stable	C
15	Loudon, Tennessee	41	42	PM2.5	Improving	B
16	Jefferson, Tennessee	41	42	Ozone	Improving	B
17	Sevier, Tennessee	43	45	Ozone	Stable	B
18	Sumner, Tennessee	43	45	PM2.5	Stable	C
19	Blount, Tennessee	45	46	Ozone	Stable	C
20	Knox, Tennessee	49	52	PM2.5	Stable	C
21	Hamilton, Tennessee	49	51	PM2.5	Worsening	C
22	Shelby, Tennessee	50	52	PM2.5	Stable	C
23	Davidson, Tennessee	52	53	PM2.5	Stable	C

Air quality data for Tennessee is sourced from the EPA Air Quality System (AQS), which monitors outdoor air quality at thousands of stations nationwide.
— EPA Air Quality System

Frequently Asked Questions

Lawrence, Tennessee has the best air quality in Tennessee with a 5-year average AQI of 33 and a grade of B.

Tennessee has 23 cities with EPA air quality monitoring data in our database, covering multiple years of AQI measurements.

The Air Quality Index (AQI) measures five major pollutants: ground-level ozone, particulate matter (PM2.5 and PM10), carbon monoxide, sulfur dioxide, and nitrogen dioxide. Lower AQI values indicate cleaner air — 0-50 is "Good," while 150+ is "Unhealthy."

Sources: EPA Air Quality System (AQS)

Cities ranked by 5-year average AQI (lower is better). Grades factor in average AQI, trend direction, unhealthy days, and dominant pollutant.

Cleanest Cities Nationwide →All Air Quality in Tennessee →