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50 Biggest Cities in Colorado

Can you name the 50 biggest cities in Colorado by population?
Quiz by
HavanesePup
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Last updated: December 29, 2025
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First submittedDecember 29, 2025
Times taken40
Average score50.0%
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#
Pop.
Answer
1
731,868
Denver
2
496,514
Colorado Springs
3
407,211
Aurora
4
171,157
Fort Collins
5
157,014
Lakewood
6
147,813
Thornton
7
121,250
Arvada
8
115,631
Greeley
9
114,964
Westminster
10
110,980
Pueblo
11
109,015
Centennial
12
106,399
Boulder
13
99,971
Longmont
14
85,544
Castle Rock
15
82,283
Loveland
16
79,280
Broomfield
17
72,109
Commerce City
18
71,752
Grand Junction
19
67,128
Parker
20
44,699
Littleton
21
44,267
Brighton
22
43,857
Windsor
23
40,639
Erie
24
38,348
Northglenn
25
35,642
Englewood
#
Pop.
Answer
26
31,903
Wheat Ridge
27
30,633
Lafayette
28
29,349
Fountain
29
22,419
Evans
30
21,961
Montrose
31
21,457
Johnstown
32
20,712
Louisville
33
20,089
Golden
34
20,079
Firestone
35
19,987
Durango
36
18,740
Frederick
37
17,255
Cañon City
38
16,149
Castle Pines
39
15,199
Greenwood Village
40
14,407
Berthoud
41
14,152
Monument
42
14,034
Fruita
43
14,021
Lone Tree
44
13,865
Federal Heights
45
13,790
Superior
46
13,719
Steamboat Springs
47
13,039
Sterling
48
12,442
Severance
49
12,339
Wellington
50
11,905
Fort Morgan
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