Cities with the Cleanest Air in Louisiana.

Cities in Louisiana with the most good AQI days per year.

40 cities ranked · See the national list

#	City	Population	Good AQI Days	Median AQI	Unhealthy Days
1	Prairieville	35,238	348 days/yr	33	0 days/yr
2	Gonzales	13,108	348 days/yr	33	0 days/yr
3	Laplace	28,343	339 days/yr	34	0 days/yr
4	Slidell	28,561	315 days/yr	37	0 days/yr
5	Mandeville	12,946	315 days/yr	37	0 days/yr
6	Covington	11,658	315 days/yr	37	0 days/yr
7	Shreveport	180,982	288 days/yr	38	0 days/yr
8	Bossier City	62,901	288 days/yr	42	0 days/yr
9	Chalmette	22,616	266 days/yr	44	0 days/yr
10	New Orleans	371,853	259 days/yr	42	0 days/yr
11	Thibodaux	15,732	246 days/yr	44	0 days/yr
12	Bayou Blue	12,218	246 days/yr	44	0 days/yr
13	Raceland	9,585	246 days/yr	44	0 days/yr
14	Lafayette	121,715	238 days/yr	45	0 days/yr
15	Youngsville	17,427	238 days/yr	45	0 days/yr
16	Broussard	14,322	238 days/yr	45	0 days/yr
17	Carencro	11,619	238 days/yr	45	0 days/yr
18	Metairie	139,729	227 days/yr	47	0 days/yr
19	Lake Charles	81,143	227 days/yr	47	0 days/yr
20	Kenner	64,904	227 days/yr	47	0 days/yr
21	Monroe	47,004	227 days/yr	45	0 days/yr
22	Marrero	32,540	227 days/yr	47	0 days/yr
23	Terrytown	24,726	227 days/yr	47	0 days/yr
24	Harvey	20,915	227 days/yr	47	0 days/yr
25	Sulphur	20,775	227 days/yr	47	0 days/yr
26	Gretna	17,389	227 days/yr	47	0 days/yr
27	Estelle	16,341	227 days/yr	47	0 days/yr
28	River Ridge	13,312	227 days/yr	47	0 days/yr
29	Claiborne	13,308	227 days/yr	45	0 days/yr
30	West Monroe	12,729	227 days/yr	45	0 days/yr
31	Moss Bluff	12,482	227 days/yr	47	0 days/yr
32	Woodmere	11,879	227 days/yr	47	0 days/yr
33	Waggaman	11,330	227 days/yr	47	0 days/yr
34	Timberlane	10,886	227 days/yr	47	0 days/yr
35	Baton Rouge	222,771	181 days/yr	51	0 days/yr
36	Central	29,783	181 days/yr	51	0 days/yr
37	Zachary	19,952	181 days/yr	51	0 days/yr
38	Shenandoah	17,998	181 days/yr	51	0 days/yr
39	Baker	12,253	181 days/yr	51	0 days/yr
40	Gardere	12,223	181 days/yr	51	0 days/yr