Largest Cities in Colorado: Ranked by Population

The largest city in Colorado in our data is Denver, CO, with an estimated 2,876,625 people, followed by Colorado Springs, CO (642,413) and Aurora, CO (379,289). This list ranks the top 50 places among the 122 Colorado communities with at least 5,000 residents.

What are the top 50 in Colorado?

How big are the largest cities in Colorado?

Of the 122 places with pages, 15 have more than 100,000 residents, 21 have between 25,000 and 100,000, and 86 have fewer than 25,000. The median place has about 11,704 people. The ten largest places account for about 68% of the combined population of all pages, which shows how concentrated the state's population is across communities. Adams County contributes 8 of the top 50.

Which counties do the top 50 belong to?

The 50 places on this list are spread across 17 counties of Colorado. Adams County has 8 (Aurora, Thornton, Westminster, Commerce City, Brighton, Northglenn, Sherrelwood, Welby); Jefferson County has 7 (Lakewood, Arvada, Dakota Ridge, Ken Caryl, Wheat Ridge, Columbine, Golden); El Paso County has 5 (Colorado Springs, Security-Widefield, Fountain, Cimarron Hills, Fort Carson). Counties with several entries are usually centers of a metropolitan area, where one large city is surrounded by many suburbs that each pass the 5,000-resident threshold.

How does Colorado compare with the rest of the country?

The median Colorado place with a page has about 11,704 residents, compared with about 13,459 nationwide, so the state's typical community is smaller than the national typical place. Denver, CO ranks 18th among all US places by estimated population in our data. The state has 448 communities in total, of which 122 reach 5,000 residents. See the national ranking of the largest cities for comparison.

Quick answers about Colorado cities

• Which is the largest city in Colorado? Denver (2,876,625 people).
• How many Colorado cities have more than 100,000 people? 15 in our data.
• How many have 25,000 to 100,000? 21.
• What is the typical size? About 11,704 residents for a place with a page.

How is this ranking made?

The data comes from the SimpleMaps US Cities Database, which gives each place an estimated population and a density in people per square kilometer. We convert density to people per square mile and rank the places with at least 5,000 residents. Boundaries matter: a city that includes large parks or farmland scores lower on density than a compact city of the same size, and population estimates can include areas that share a city's ZIP codes. Read why population figures differ and how density is calculated before you quote a number.

Where to go next

Rankings use dataset estimates, not official counts.