Is being in an area of Colorado that’s growing quickly a good thing or a bad thing?
Depends on who you ask.
Some want bigger, more exciting cities like Denver and Colorado Springs, while others want peace and quiet like in Brush and Estes Park, thank you very much.
But today, we’re going to put opinions aside and look at the cold, hard facts — since 2010, which cities in Colorado have grown the fastest.
After getting knee-deep in the Census’s American Community Survey using Saturday Night Science, we emerged with this set of cities in the Centennial State that have people climbing over each other to get in.
1900.2% growth since 2010 · 8,494 net new residents
Data | Crime | Cost of living | Movers
263.2% growth since 2010 · 7,341 net new residents
Data | Crime | Cost of living | Movers
141.3% growth since 2010 · 7,268 net new residents
Located in
Weld County, ColoradoThe Town of Berthoud is a Statutory Town in Larimer and Weld counties in the U.S. state of Colorado. The town population was 5,105 at the 2010 United States Census. Berthoud is situated north of the Little Thompson River, approximately halfway between the cities of Fort Collins, Colorado and Denver, Colorado along the Front Range Urban Corridor.
Data | Crime | Cost of living | Movers
141.0% growth since 2010 · 6,866 net new residents
Located in
El Paso County, ColoradoThe Town of Monument is a statutory town situated at the base of the Rampart Range in El Paso County, Colorado, United States. Monument is bordered by Pike National Forest on the west, Colorado Springs and the United States Air Force Academy to the south, foothills and rock outcroppings to the north, and rolling plains to the east. Monument was first settled as a stop along the Rio Grande Railroad in 1872, and the area was incorporated as a town called Henry’s Station in 1879, but the name was later changed to Monument. The town population was 5,530 at the 2010 United States Census, an increase of 181% from the population of 1,971 in 2000.
Data | Crime | Cost of living | Movers
119.1% growth since 2010 · 20,608 net new residents
Located in
Weld County, ColoradoThe Town of Windsor is a Home Rule Municipality in Larimer and Weld counties in the U.S. state of Colorado. According to June 2016 estimates, the population of the town was 24,500. Windsor is located in the region known as Northern Colorado. Windsor is situated 59 miles north of the Colorado State Capitol in Denver.
Data | Crime | Cost of living | Movers
118.1% growth since 2010 · 10,227 net new residents
Data | Crime | Cost of living | Movers
116.0% growth since 2010 · 8,941 net new residents
Located in
Weld County, ColoradoThe Town of Frederick is a Statutory Town in Weld County, Colorado, United States. The population was 8679 at the 2010 census.
Data | Crime | Cost of living | Movers
109.5% growth since 2010 · 17,674 net new residents
Located in
Weld County, ColoradoThe Town of Erie is a Statutory Town in Boulder and Weld counties in the U.S. state of Colorado. The population as of the 2010 census was 18,135, up from 6,291 at the 2000 census. Erie is located just west of Interstate 25, with easy access to Interstate 70, Denver International Airport and Colorado’s entire Front Range. Erie’s Planning Area spans 48 square miles, extending from the north side of State Highway 52 south to State Highway 7, and between US 287 on the west and Interstate 25 to the east. Erie is approximately 35 minutes from Denver International Airport, 25 minutes from Denver and 20 minutes from Boulder.
The town was named after Erie, Pennsylvania, the former home of an early settler, Richard Van Valkenburg.
Data | Crime | Cost of living | Movers
108.9% growth since 2010 · 6,150 net new residents
Located in
Larimer County, ColoradoWellington is a Statutory Town in Larimer County, Colorado, United States. The population was 6,289 at the 2010 census.
Data | Crime | Cost of living | Movers
103.6% growth since 2010 · 9,183 net new residents
Located in
Weld County, ColoradoThe Town of Firestone is a Statutory Town in Weld County, Colorado, United States. The population was 10,147 at the 2010 census.
Data | Crime | Cost of living | Movers
The receipts
Compare the top ten
Pick a metric. The bars rescale. The red line is Colorado’s statewide median.
On the map
Where Colorado’s growth is happening
Saturday Night Science
Methodology: How We Measured The Fastest Growing Cities In the Centennial State for 2026
To figure out which cities are growing the most, we used Saturday Night Science to look at the growth rates for cities since the beginning of the decade, according to the American Community Survey put out by the census every year. Specifically:
- Current Population
- Population in 2010
- Growth rate from 2010 to Current (the latest available data, which came out in Dec 2024)
We ranked all 76 Colorado cities with a population over 5,000 people from highest growth rate to lowest.
The city with the highest growth rate during this time was crowned the fastest-growing city in the Centennial State.
And for those of you who are a little rusty with their statistics, you can calculate the growth rate by the following formula: [Current Population – Population 2010] / [Population 2010].
The data has been updated for 2026. This report is our eleventh time ranking the fastest growing cities in Colorado.
The full plate
Fastest Growing Places In Colorado For 2026
Click any column to sort. Search by city name.
| Rank | City | Population | Population 2010 | Growth | Absolute Growth |
|---|---|---|---|---|---|
| 1 | Timnath | 8,941 | 447 | 1900.2% | 8,494 |
| 2 | Severance | 10,130 | 2,789 | 263.2% | 7,341 |
| 3 | Berthoud | 12,411 | 5,143 | 141.3% | 7,268 |
| 4 | Monument | 11,735 | 4,869 | 141.0% | 6,866 |
| 5 | Windsor | 37,914 | 17,306 | 119.1% | 20,608 |
| 6 | John | 18,883 | 8,656 | 118.1% | 10,227 |
| 7 | Frederick | 16,651 | 7,710 | 116.0% | 8,941 |
| 8 | Erie | 33,808 | 16,134 | 109.5% | 17,674 |
| 9 | Wellington | 11,798 | 5,648 | 108.9% | 6,150 |
| 10 | Firestone | 18,049 | 8,866 | 103.6% | 9,183 |
| 11 | Lochbuie | 8,609 | 4,306 | 99.9% | 4,303 |
| 12 | Mead | 5,919 | 3,241 | 82.6% | 2,678 |
| 13 | Castle Rock | 79,123 | 44,402 | 78.2% | 34,721 |
| 14 | Milliken | 8,871 | 5,225 | 69.8% | 3,646 |
| 15 | Dacono | 6,530 | 4,031 | 62.0% | 2,499 |
| 16 | Commerce City | 66,445 | 41,495 | 60.1% | 24,950 |
| 17 | Gypsum | 8,941 | 6,054 | 47.7% | 2,887 |
| 18 | Parker | 61,783 | 42,548 | 45.2% | 19,235 |
| 19 | Broomfield | 76,304 | 52,872 | 44.3% | 23,432 |
| 20 | Lone Tree | 14,147 | 9,890 | 43.0% | 4,257 |
| 21 | Eaton | 5,867 | 4,135 | 41.9% | 1,732 |
| 22 | Brighton | 42,059 | 31,181 | 34.9% | 10,878 |
| 23 | Evans | 22,396 | 17,223 | 30.0% | 5,173 |
| 24 | Thornton | 144,187 | 112,374 | 28.3% | 31,813 |
| 25 | Lafayette | 30,602 | 24,187 | 26.5% | 6,415 |
| 26 | Aurora | 394,432 | 314,092 | 25.6% | 80,340 |
| 27 | Eagle | 7,442 | 5,958 | 24.9% | 1,484 |
| 28 | Denver | 718,877 | 578,087 | 24.4% | 140,790 |
| 29 | Fountain | 29,300 | 23,781 | 23.2% | 5,519 |
| 30 | Loveland | 78,410 | 64,105 | 22.3% | 14,305 |
| 31 | Federal Heights | 14,125 | 11,586 | 21.9% | 2,539 |
| 32 | Greeley | 110,806 | 91,115 | 21.6% | 19,691 |
| 33 | Fort Collins | 170,229 | 140,082 | 21.5% | 30,147 |
| 34 | Grand Junction | 68,142 | 56,295 | 21.0% | 11,847 |
| 35 | Colorado Springs | 487,887 | 403,983 | 20.8% | 83,904 |
| 36 | Fort Lupton | 8,897 | 7,422 | 19.9% | 1,475 |
| 37 | Rifle | 10,570 | 8,880 | 19.0% | 1,690 |
| 38 | Longmont | 99,406 | 83,604 | 18.9% | 15,802 |
| 39 | Durango | 19,411 | 16,501 | 17.6% | 2,910 |
| 40 | Fruita | 13,691 | 11,676 | 17.3% | 2,015 |
| 41 | Gunnison | 6,766 | 5,783 | 17.0% | 983 |
| 42 | Arvada | 122,634 | 104,885 | 16.9% | 17,749 |
| 43 | Montrose | 21,044 | 18,237 | 15.4% | 2,807 |
| 44 | Greenwood Village | 15,420 | 13,367 | 15.4% | 2,053 |
| 45 | Steamboat Springs | 13,433 | 11,796 | 13.9% | 1,637 |
| 46 | Alamosa | 9,879 | 8,693 | 13.6% | 1,186 |
| 47 | Louisville | 20,786 | 18,470 | 12.5% | 2,316 |
| 48 | Englewood | 34,129 | 30,342 | 12.5% | 3,787 |
| 49 | Superior | 13,305 | 11,852 | 12.3% | 1,453 |
| 50 | Woodland Park | 7,949 | 7,117 | 11.7% | 832 |
| 51 | Golden | 20,417 | 18,414 | 10.9% | 2,003 |
| 52 | Salida | 5,861 | 5,287 | 10.9% | 574 |
| 53 | Lakewood | 156,583 | 142,020 | 10.3% | 14,563 |
| 54 | Westminster | 115,484 | 104,869 | 10.1% | 10,615 |
| 55 | Boulder | 106,433 | 97,050 | 9.7% | 9,383 |
| 56 | Glenwood Springs | 10,241 | 9,427 | 8.6% | 814 |
| 57 | Northglenn | 38,014 | 35,127 | 8.2% | 2,887 |
| 58 | Centennial | 108,201 | 99,999 | 8.2% | 8,202 |
| 59 | Littleton | 44,710 | 41,352 | 8.1% | 3,358 |
| 60 | Delta | 9,421 | 8,779 | 7.3% | 642 |
| 61 | Cherry Hills Village | 6,354 | 5,936 | 7.0% | 418 |
| 62 | Sheridan | 6,005 | 5,621 | 6.8% | 384 |
| 63 | Cortez | 8,976 | 8,412 | 6.7% | 564 |
| 64 | Carbondale | 6,637 | 6,284 | 5.6% | 353 |
| 65 | Wheat Ridge | 32,070 | 30,379 | 5.6% | 1,691 |
| 66 | Aspen | 6,756 | 6,403 | 5.5% | 353 |
| 67 | Pueblo | 111,561 | 105,957 | 5.3% | 5,604 |
| 68 | Fort Morgan | 11,605 | 11,229 | 3.3% | 376 |
| 69 | La Junta | 7,140 | 7,063 | 1.1% | 77 |
| 70 | Estes Park | 5,844 | 5,820 | 0.4% | 24 |
| 71 | Brush | 5,306 | 5,428 | -2.2% | -122 |
| 72 | Craig | 8,991 | 9,308 | -3.4% | -317 |
| 73 | Lamar | 7,611 | 7,901 | -3.7% | -290 |
| 74 | Avon | 5,972 | 6,345 | -5.9% | -373 |
| 75 | Sterling | 13,172 | 14,393 | -8.5% | -1,221 |
| 76 | Trinidad | 8,286 | 9,236 | -10.3% | -950 |
Source: U.S. Census ACS, 2010-current. 76 Colorado cities with more than 5,000 residents.
Summary
Summary: These Places Grew Up So Fast In Colorado, You Know?
So there you have it, the fastest growing cities in Colorado are led by Timnath which has been growing at a blistering pace this decade relative to other cities and towns around the state.
The fastest-growing cities in Colorado are Timnath, Severance, Berthoud, Monument, Windsor, John, Frederick, Erie, Wellington, and Firestone.
It’ll be interesting to see if these places can keep growing at the same rate over the next couple of years. We’ll be here to let you know!
