Colorado · 79 places of 5,000+

Largest cities in Colorado by population

Short answer

Denver is the largest city in Colorado with 729,019 residents in 2024, followed by Colorado Springs (493,554) and Aurora (403,130).
Largest
729,019
Places 5,000+
79
100,000+
12

The 20 largest

Denver leads with 729,019 residents, 1.5 times the 493,554 of second-place Colorado Springs. The ten largest places hold 2,562,888 people, 43% of the state's 5,957,493. 12 places have 100,000 or more.

The median place of 5,000+ is Lone Tree at 14,061. Within the top ten, Greeley grew most since July 2020 (+4.6%) and Arvada least (-2.0%). 12 of the 79 places cross a county line; their totals include every county part.

  1. 01Denver729,019
  2. 02Colorado Springs493,554
  3. 03Aurora403,130
  4. 04Fort Collins170,924
  5. 05Lakewood156,868
  6. 06Thornton146,689
  7. 07Arvada121,873
  8. 08Westminster115,302
  9. 09Greeley114,363
  10. 10Pueblo111,166
  11. 11Centennial108,853
  12. 12Boulder106,803
  13. 13Longmont99,818
  14. 14Castle Rock83,213
  15. 15Loveland81,102
  16. 16Broomfield78,323
  17. 17Grand Junction70,554
  18. 18Commerce City70,245
  19. 19Parker65,473
  20. 20Littleton44,879
July 1, 2024 population, Census Vintage 2024.

Dots: the 20 places in the chart. Orange pin: Denver, ranked first.

All 79 places of 5,000+ ranked

#Place2024Since 2020County
1Denver729,019+1.6%Denver County
2Colorado Springs493,554+2.5%El Paso County
3Aurora403,130+4.2%Arapahoe County +2
4Fort Collins170,924+0.5%Larimer County
5Lakewood156,868+0.4%Jefferson County
6Thornton146,689+3.2%Adams County
7Arvada121,873-2.0%Jefferson County +1
8Westminster115,302-1.2%Adams County +1
9Greeley114,363+4.6%Weld County
10Pueblo111,166-0.7%Pueblo County
11Centennial108,853+0.6%Arapahoe County
12Boulder106,803-1.5%Boulder County
13Longmont99,818+0.6%Boulder County +1
14Castle Rock83,213+12.6%Douglas County
15Loveland81,102+6.2%Larimer County
16Broomfield78,323+5.1%Broomfield County
17Grand Junction70,554+7.3%Mesa County
18Commerce City70,245+11.9%Adams County
19Parker65,473+11.2%Douglas County
20Littleton44,879-1.6%Arapahoe County +2
21Brighton43,473+7.9%Adams County +1
22Windsor41,734+25.5%Weld County +1
23Erie38,594+26.9%Weld County +1
24Northglenn38,287+0.6%Adams County +1
25Englewood35,238+4.8%Arapahoe County
26Wheat Ridge31,999-1.2%Jefferson County
27Lafayette30,587+0.6%Boulder County
28Fountain29,457-1.4%El Paso County
29Evans22,394+0.5%Weld County
30Montrose21,646+6.2%Montrose County
31Louisville20,811-1.9%Boulder County
32Johnstown20,639+18.8%Weld County +1
33Golden20,151-1.2%Jefferson County
34Durango19,811+3.7%La Plata County
35Firestone19,396+16.4%Weld County
36Frederick17,937+21.8%Weld County
37Cañon City17,193+1.5%Fremont County
38Greenwood Village15,288-2.3%Arapahoe County
39Castle Pines15,162+35.2%Douglas County
40Lone Tree14,061-1.1%Douglas County
41Federal Heights13,971-2.9%Adams County
42Fruita13,912+3.6%Mesa County
43Superior13,654+4.2%Boulder County
44Berthoud13,648+28.6%Larimer County +1
45Steamboat Springs13,620+3.0%Routt County
46Monument13,408+28.6%El Paso County
47Sterling13,114-2.2%Logan County
48Wellington12,100+8.6%Larimer County
49Fort Morgan11,835+2.4%Morgan County
50Severance11,554+44.4%Weld County
51Timnath10,848+60.8%Larimer County +1
52Rifle10,663+2.1%Garfield County
53Glenwood Springs10,311+3.0%Garfield County
54Fort Lupton9,948+24.2%Weld County
55Alamosa9,906+1.0%Alamosa County
56Delta9,688+6.9%Delta County
57Gypsum9,218+13.8%Eagle County
58Cortez9,151+4.2%Montezuma County
59Milliken9,102+7.7%Weld County
60Craig8,903-1.6%Moffat County
61Lochbuie8,599+4.7%Weld County
62Trinidad8,183-1.9%Las Animas County
63Woodland Park8,043+1.6%Teller County
64Lamar7,641-0.8%Prowers County
65Eagle7,349-2.2%Eagle County
66La Junta6,986-4.5%Otero County
67Gunnison6,821+3.8%Gunnison County
68Carbondale6,758+4.6%Garfield County
69Dacono6,748+6.3%Weld County
70Mead6,735+40.3%Weld County
71Aspen6,556-6.2%Pitkin County
72Cherry Hills Village6,349-1.2%Arapahoe County
73Salida6,007+5.2%Chaffee County
74Sheridan5,932-2.8%Arapahoe County
75Avon5,898-3.9%Eagle County
76Eaton5,839-0.2%Weld County
77Estes Park5,795-1.8%Larimer County
78Brush5,370+0.9%Morgan County
79Silverthorne5,220+17.3%Summit County
Census Vintage 2024 subcounty estimates. Counties from the SUMLEV 157 county parts.

Questions people ask

What is the largest city in Colorado?

Denver, with 729,019 residents on July 1, 2024 in the Census Vintage 2024 estimates.

What is the second largest city in Colorado?

Colorado Springs, with 493,554 residents, 235,465 fewer than Denver.

How many cities in Colorado have more than 100,000 people?

12: Denver, Colorado Springs, Aurora, Fort Collins, Lakewood, Thornton, Arvada, Westminster, Greeley, Pueblo, Centennial, Boulder.

How is city size measured here?

By the Census Bureau's July 1, 2024 population estimate for each incorporated place, inside its legal city limits. Metro areas and census-designated places are not ranked.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 subcounty population estimates
  2. 02Census 2024 Gazetteer, places

How every number is computed: methodology. Spotted a wrong figure? Report an error.