Boulder County

Allenspark
Boulder
Eldorado Springs
Erie
Gold Hill
Gunbarrel
Jamestown
Lafayette
Longmont
Louisville
Lyons
Nederland
Niwot
Superior
HASC code :US-CO-BO
FIPS 6-4 code :08013
Capital :Boulder
Largest city :Boulder
Elevation :High : Allenspark 8,450 ft
Low : Gunbarrel 0 ft
Population :291,288
Land Area :743 sq mi
(1,924 km²)
Density :392.04/sq mi
(151.37/km²)
Time zone :UTC -7
Website :http://www.co.boulder.co.us