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Boulder is a city in the state of Colorado, in the United States. It is the county seat of Boulder County. Boulder is in the foothills of the Rocky Mountains. The city's height is 5,430 feet (1,660 m). It is 25 miles (40 km) northwest of Denver. In 2020, there were 108,250 people living the City of Boulder.
The 64 Counties of the State of Colorado; County [1] Population [3] County website CDOT county map Coordinates [b] 2023 rank 2023 estimates [a] Change 2020 Census Change 2010 Census Change 2000 Census; El Paso County: 1 744,215 +1.89 % 730,395 +17.38 % 622,263 +20.38 % 516,934: El Paso County: map
The city lies in southeastern Colorado in northwestern Prowers County on the south side of the Arkansas River floodplain. Las Animas is about twenty miles to the west. According to the United States Census Bureau, the city has a total area of 4.2 square miles (11 km 2), all land.
City and County of Broomfield Broomfield is a combined city and county of about 77,000 in the Denver Metropolitan Area of the western U.S. state of Colorado.Broomfield lies 14 miles northwest of Denver and 12 miles southeast of Boulder.
Located northwest Boulder County, Allenspark was established in 1870 in the midst of the gold rush. Zip code: 80510 Population: 528. Coal Creek Canyon. Located partially in Southwest Boulder County, the Coal Creek Canyon community also resides in neighboring counties of Jefferson and Gilpin. Zip code: 80403
US > Colorado > Colorado ZIP Codes > Area Codes ... Boulder County: Cities & Towns: ZIP Codes: ... Area Code 303 Cross Reference with Cities, Counties and ZIP Codes.
The Denver–Aurora–Lakewood, CO Metropolitan Statistical Area; County 2010 Census 2020 Census Change City and County of Denver: 600,158 715,522
