Boulder County is a county located in the U.S. state of Colorado. As of 2000, the population was 291,288. According to Census Bureau estimates, it has decreased to 280,440 in 2005. Note that the population of the area actually increased, but the city of Broomfield split from the county in 2001. The county seat is Boulder.

History

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Boulder County was one of the original 17 counties created by the Colorado legislature on November 1, 1861. It was named after Boulder City and Boulder Creek, so named because of the abundance of boulders in the area. It retains essentially the same borders now as it was created with then, although a small portion of its southeastern corner became part of the City and County of Broomfield in 2001.

Geography

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According to the U.S. Census Bureau, the county has a total area of 1,946 km² (751 mi²). 1,923 km² (742 mi²) of it is land and 23 km² (9 mi²) of it (1.19%) is water.

Demographics

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As of the census² of 2000, there were 291,288 people, 114,680 households, and 68,808 families residing in the county. The population density was 151/km² (392/mi²). There were 119,900 housing units at an average density of 62/km² (162/mi²). The racial makeup of the county was 88.54% White, 0.88% Black or African American, 0.61% Native American, 3.06% Asian, 0.06% Pacific Islander, 4.67% from other races, and 2.18% from two or more races. 10.46% of the population were Hispanic or Latino of any race.

There were 114,680 households out of which 30.70% had children under the age of 18 living with them, 48.90% were married couples living together, 7.70% had a female householder with no husband present, and 40.00% were non-families. 26.30% of all households were made up of individuals and 5.50% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 3.03.

In the county the population was spread out with 22.90% under the age of 18, 13.40% from 18 to 24, 33.60% from 25 to 44, 22.30% from 45 to 64, and 7.80% who were 65 years of age or older. The median age was 33 years. For every 100 females there were 102.20 males. For every 100 females age 18 and over, there were 101.70 males.

The median income for a household in the county was $55,861, and the median income for a family was $70,572. Males had a median income of $48,047 versus $32,207 for females. The per capita income for the county was $28,976. About 4.60% of families and 9.50% of the population were below the poverty line, including 7.60% of those under age 18 and 5.90% of those age 65 or over.

Cities and towns

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• Allenspark
• Boulder
• Coal Creek
• Eldora
• Eldorado Springs
• Erie
• Gold Hill
• Gunbarrel
• Jamestown
• Lafayette
• Longmont
• Louisville
• Lyons
• Nederland
• Niwot
• Superior
• Ward

Colorado counties | Boulder County, Colorado

Boulder County | Condado de Boulder (Colorado)