Colorado - Top 100+ Cities by Population

Population data by city is the population of the city itself, not the metro area. Data is as of 2011 estimates.

Rank City State Country Population
19. Commerce City ColoradoUnited States 45,913
18. Castle Rock ColoradoUnited States 48,231
17. Broomfield ColoradoUnited States 55,889
16. Grand Junction ColoradoUnited States 58,566
15. Loveland ColoradoUnited States 66,859
14. Longmont ColoradoUnited States 86,270
13. Greeley ColoradoUnited States 92,889
12. Highlands Ranch ColoradoUnited States 96,713
11. Boulder ColoradoUnited States 97,385
10. Centennial ColoradoUnited States 100,377
9. Westminster ColoradoUnited States 106,114
8. Arvada ColoradoUnited States 106,433
7. Pueblo ColoradoUnited States 106,595
6. Thornton ColoradoUnited States 118,772
5. Lakewood ColoradoUnited States 142,980
4. Fort Collins ColoradoUnited States 143,986
3. Aurora ColoradoUnited States 325,078
2. Colorado Springs ColoradoUnited States 416,427
1. Denver ColoradoUnited States 600,158