Cities with the Cleanest Air in Idaho.

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

#	City	Population	Good AQI Days	Median AQI	Unhealthy Days
1	Twin Falls	54,164	339 days/yr	26	0 days/yr
2	Idaho Falls	67,725	334 days/yr	22	0 days/yr
3	Ammon	19,064	334 days/yr	22	0 days/yr
4	Pocatello	57,635	324 days/yr	36	0 days/yr
5	Chubbuck	16,126	324 days/yr	36	0 days/yr
6	Moscow	26,286	282 days/yr	31	0 days/yr
7	Nampa	110,319	280 days/yr	36	0 days/yr
8	Caldwell	66,516	280 days/yr	36	0 days/yr
9	Middleton	10,649	280 days/yr	36	0 days/yr
10	Coeur d'Alene	56,447	274 days/yr	31	0 days/yr
11	Post Falls	43,391	274 days/yr	31	0 days/yr
12	Hayden	16,338	274 days/yr	31	0 days/yr
13	Rathdrum	10,874	274 days/yr	31	0 days/yr
14	Boise	237,242	270 days/yr	42	0 days/yr
15	Meridian	130,138	270 days/yr	42	0 days/yr
16	Eagle	32,855	270 days/yr	42	0 days/yr
17	Kuna	27,158	270 days/yr	42	0 days/yr
18	Star	14,745	270 days/yr	42	0 days/yr
19	Garden City	12,654	270 days/yr	42	0 days/yr
20	Lewiston	34,651	263 days/yr	33	1 days/yr