Live index with partial source coverage. Prior values were preserved where live retrieval was unavailable: AirNow.

State profile

Colorado

2 indexed cities · average score 45.6

State rank	City	Score	AQI	Water	Moisture	Housing year
#1	Colorado Springs	47.5	63	0.0%	38.3	1986
#2	Denver	43.8	71	0.0%	39.5	1975