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3 Cities and towns
Geography\nThe county is bounded in the north by Weld County and Morgan County, in the east by Washington County, in the south by Arapahoe County and Denver (city and county are identical), and in the west by Boulder County and Jefferson County.
According to the U.S. Census Bureau, the county has a total area of 3,102 km² (1,198 mi²). 3,087 km² (1,192 mi²) of it is land and 15 km² (6 mi²) of it is water. The total area is 0.48% water.
Demographics\nAs of the census2 of 2000, there are 363,857 people, 128,156 households, and 92,144 families residing in the county. The population density is 118/km² (305/mi²). There are 132,594 housing units at an average density of 43/km² (111/mi²). The racial makeup of the county is 77.29% White, 2.97% Black or African American, 1.19% Native American, 3.21% Asian, 0.12% Pacific Islander, 11.73% from other races, and 3.49% from two or more races. 28.19% of the population are Hispanic or Latino of any race.
There are 128,156 households out of which 37.80% have children under the age of 18 living with them, 53.80% are married couples living together, 12.10% have a female householder with no husband present, and 28.10% are non-families. 21.20% of all households are made up of individuals and 5.50% have someone living alone who is 65 years of age or older. The average household size is 2.81 and the average family size is 3.27.
In the county the population is spread out with 28.60% under the age of 18, 10.30% from 18 to 24, 34.00% from 25 to 44, 19.40% from 45 to 64, and 7.80% who are 65 years of age or older. The median age is 31 years. For every 100 females there are 102.80 males. For every 100 females age 18 and over, there are 102.10 males.
The median income for a household in the county is $47,323, and the median income for a family is $52,517. Males have a median income of $36,499 versus $28,053 for females. The per capita income for the county is $19,944. 8.90% of the population and 6.50% of families are below the poverty line. Out of the total people living in poverty, 10.90% are under the age of 18 and 7.30% are 65 or older.
Cities and towns\n*Aurora\n*Bennett\n*Berkley\n*Brighton\n*Commerce City\n*Derby\n*Federal Heights\n*North Washington\n*Northglenn\n*Sherrelwood\n*Strasburg\n*Thornton\n*Todd Creek\n*Twin Lakes\n*Welby\n*Westminster