If you're looking to breathe easier, look no further than Santa Fe. It took the top spot for cleanest air in all three of the American Lung Association's pollution categories: ozone, as well as short-term and year-round particle pollution (see footnote).
"We don't have any dirty industries here," said Richard Goodyear, chief of the Air Quality Bureau for the state's environmental agency.
In fact, the closest major power plant is about 200 miles away in the northwest corner of the state, he said.
The state's strict emission standards can also be credited for its high air quality. According to Goodyear, New Mexico's rules are more stringent for nitrous oxide and other pollutants than those of the Environmental Protection Agency.
NEXT: Bismarck, N.D.