Colorado Area Codes

5 area codes serve Colorado

Colorado Area Codes Overview

Colorado, known for its diverse landscapes and vibrant communities, is served by multiple area codes that cater to its expansive geography. The most prevalent area codes include 303, 720, 719, 970, and 970, each covering different regions of the state. The 303 and 720 area codes encompass the Denver metropolitan area, while 719 spans cities like Colorado Springs and Pueblo. The western part of the state, including cities like Grand Junction, is covered by the 970 area code. These area codes facilitate efficient communication across the state, connecting residents and businesses while reflecting the dynamic and expansive nature of Colorado's urban and rural spaces.

Largest 32 cities in Colorado

City Population
Denver 600,158
Colorado Springs 416,427
Aurora 325,078
Fort Collins 143,986
Lakewood 142,980
Thornton 118,772
Pueblo 106,595
Arvada 106,433
Westminster 106,114
Centennial 100,377
Boulder 97,385
Highlands Ranch 96,713
Greeley 92,889
Longmont 86,270
Loveland 66,859
Grand Junction 58,566
Broomfield 55,889
Castle Rock 48,231
Commerce City 45,913
Parker 45,297
Littleton 41,737
Northglenn 35,789
Brighton 33,352
Security-Widefield 32,882
Ken Caryl 32,438
Dakota Ridge 32,005
Englewood 30,255
Wheat Ridge 30,166
Pueblo West 29,637
Fountain 25,846
Lafayette 24,453
Columbine 24,280

Colorado Area Codes List