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Boulder County is a county located in the U.S. state of Colorado of the United States. As of the 2020 census , the population was 330,758. [ 1 ] The most populous municipality in the county and the county seat is Boulder .
With a population of 108,250 at the 2020 census, it is the most populous city in the county and the 12th-most populous city in Colorado. [6] Boulder is the principal city of the Boulder metropolitan statistical area, which had 330,758 residents in 2020, and is part of the Front Range Urban Corridor.
- Denver, Co
- Colorado Springs, Co
- Aurora, Co
- Fort Collins, Co
- Lakewood, Co
- Thornton, Co
- Arvada, Co
- Westminster, Co
- Pueblo, Co
- Greeley, Co
708,948 (2024 | Denver Metro ~ 2,963,000); 715,522 (2020); 600,158 (2010) Denver has grown considerably since 2010, yet in the last few years since the 2020 Census in has declined. Still bustling though, today the Mile High City is a fully-fledged metropolis featuring all of the economic and cultural attractions that are expected in a large city. A...
492,204 (2024 | COS Metro ~ 701,000); 478,961 (2020); 416,427 (2010) Located about an hour south of Denver on I-25, Colorado Springs comes in at Colorado’s second largest city. A military town at its core, the Springs is home to Fort Carson Army Base as well as the United States Air Force Academy. University of Colorado Colorado Springs is situated...
400,325 (2024); 386,261 (2020); 325,078 (2010) Aurora is an expansive city that lies east of Denver. It’s further from the mountains, but it has an impressive parks system that includes the Aurora Reservoir, an 800-acre body of water in the southeast of the city. For more outdoor recreation, visit one of the five municipal golf courses that are spr...
168,519 (2024); 169,810 (2020); 143,896 (2010) Fort Collins lies just over an hour north of Denver and even closer to Cheyenne, Wyoming, making it the northernmost city on this list. Home to Colorado State University, it could be considered a college town, but there’s much more to do than visit the campus. Besides the college, Fort Collinsis known ...
156,004 (2024); 155,984 (2020); 142,980 (2010) If Aurora is Denver’s neighbor to the east, Lakewood is its neighbor to the west. Even closer to the Rockies than the state capital, Lakewoodprovides easy access to nature with sites like Green Mountain and the nearby famous Red Rocks Park and Amphitheatre. One highlight of the city is Belmar, a shoppi...
144,388 (2024); 141,867 (2020); 118,772 (2010) Located north of the capital, Thorntonis another one of the many towns that make up the greater Denver area. It’s relatively close to Denver International Airport, and it has easy access to downtown on I-25. In Thornton proper, explore any of the 25 city parks or reserve a tee time at Todd Creek Golf C...
118,768 (2024); 124,402 (2020); 106,433 (2010) With a history reaching back to the Gold Rush, Arvada is a fun and relatively quiet city situated to the northwest of Denver. In the center lies Olde Town, which is a few walkable blocks of restaurants, shopping, and breweries that form one of the highlights of the city. Arvadaprides itself on its loca...
112,764 (2024); 116,317 (2020); 106,114 (2010) North of Arvada lies Westminster. It’s another Denver suburb city with a great system of parks and plenty of cultural attractions. The highlight of Westminsteris nearby Standley Lake Regional Park & Wildlife Refuge, a large park that contains a 1,000-acre lake open to non-motorized boating. Other fun a...
111,021 (2024); 111,876 (2020); 106,595 (2010) Pueblosits approximately two hours south of Denver on I-25. A little further from the mountains than Colorado Springs, it’s a highlight of southern Colorado with plenty of things to see and do. Check out some local museums like the Pueblo Heritage Museum, Pueblo Railway Museum, or even El Pueblo Histor...
109,154 (2024); 108,795 (2020); 92,889 (2010) Moving away from southern Colorado to the northern reaches of the state, Greeley is located east of I-25 and about an hour from Cheyenne, Wyoming. Although it’s relatively far from the mountains, Greeleyis very outdoor friendly, and it is even home to one of the most comprehensive bike networks in the s...
- William Reavis
Boulder is a large mountain city located about 25 miles northwest of Denver. With approximately 100,000 people (according to 2010 estimates) spread over just 26 square miles, Boulder has one of the largest population densities in the state.
Jul 15, 2024 · Based on the latest 2024 data from the US census, the current population of Boulder is 105,898. Boulder, Colorado is the 301st largest city in the US.
Boulder is a city located in Boulder County and Larimer County Colorado. Boulder has a 2024 population of 105,156. It is also the county seat of Boulder County. Boulder is currently declining at a rate of -0.7% annually and its population has decreased by-2.74% since the most recent census, which recorded a population of 108,123 in 2020.
Boulder County, Colorado. QuickFacts provides statistics for all states and counties. Also for cities and towns with a population of 5,000 or more.
