Boulder County, Colorado
According to 2000 Census Bureau, there were 291288 people, 114680 households, and 68787 families residing in the county. The population density was 392.3 people per square mile (151.47/kmē), it is Colorado's fourth most densely populated county. There were 119900 housing units at an average density of 161.5 per square mile (62.36/kmē). The average household size was 2.47 people, and the average family size was 3.03 people. In the county the population was spread out, with 22.9% under the age of 18, 13.4% from 18 to 24, 33.6% from 25 to 44, 22.3% from 45 to 64, and 7.8% who were 65 or older. For every 100 females there were 102.2 males. For every 100 females age 18 and over, there were 101.7 males. Its population was estimated at 293161 in July 2008, The racial or ethnic makeup of the county was 92.51% White, 1.18% Black or African American, 0.76% American Indian, 3.82% Asian, 0.07% Native Hawaiian, and 1.67% from two or more races.
The median income for a household in the county was $55861, it is the seventh highest county by median household income in the U.S. state of Colorado. The median income for a family in the county was $70572, making it the third wealthiest county by median family income among the Colorado. The per capita income for the county was $28976, making it the fifth highest county by per capita income in Colorado.
In 2000, 90124 pupils and students, of which 51.25% are male and 48.75% are female, 30.94% of the total population, are in the education system. Of which, percentage of enrollment student are in, 6.33% nursery or pri school, 4.42% kindergarten, 33.87% elementary school, 15.81% high school and 39.56% College graduate school.
| Rank | City | County | Total Area mi2 | Land Area mi2 | Water Area mi2 | Population | Density mi2 | Per capita Income | House hold Income |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Allenspark Cdp | Boulder County | 42.75 | 42.75 | 0 | 496 | 11.6 | 28333 | 42596 |
| 2 | Boulder City | Boulder County | 25.37 | 24.37 | 1 | 94673 | 3884.1 | 27262 | 44748 |
| 3 | Coal Creek Cdp | Boulder County, Gilpin County, Jefferson County | 9.43 | 9.43 | 0.01 | 2323 | 246.4 | 34911 | 73750 |
| 4 | Eldora Cdp | Boulder County | 4.2 | 4.2 | 0 | 170 | 40.5 | 22191 | 51875 |
| 5 | Eldorado Springs Cdp | Boulder County | 2.4 | 2.4 | 0 | 557 | 232.1 | 42908 | 48875 |
| 6 | Erie Town | Boulder County, Weld County | 9.54 | 9.46 | 0.08 | 6291 | 665.3 | 30625 | 77114 |
| 7 | Gold Hill Cdp | Boulder County | 2.01 | 2.01 | 0 | 210 | 104.7 | 24675 | 48750 |
| 8 | Gunbarrel Cdp | Boulder County | 6.44 | 6.41 | 0.03 | 9435 | 1471.9 | 36478 | 67022 |
| 9 | Jamestown Town | Boulder County | 0.65 | 0.65 | 0 | 205 | 314.2 | 29904 | 67500 |
| 10 | Lafayette City | Boulder County | 8.91 | 8.85 | 0.06 | 23197 | 2620.9 | 27780 | 56376 |
| 11 | Longmont City | Boulder County, Weld County | 21.81 | 21.79 | 0.01 | 71093 | 3262.3 | 23409 | 51174 |
| 12 | Louisville City | Boulder County | 8.56 | 8.52 | 0.04 | 18937 | 2223.6 | 31828 | 69945 |
| 13 | Lyons Town | Boulder County | 1.24 | 1.24 | 0 | 1585 | 1273.5 | 28276 | 50764 |
| 14 | Nederland Town | Boulder County | 1.59 | 1.53 | 0.05 | 1394 | 909.5 | 29111 | 50588 |
| 15 | Niwot Cdp | Boulder County | 4.05 | 4.05 | 0 | 4160 | 1026.4 | 39943 | 86914 |
| 16 | Superior Town | Boulder County, Jefferson County | 3.97 | 3.95 | 0.02 | 9011 | 2279.2 | 36326 | 82079 |
| 17 | Ward Town | Boulder County | 0.57 | 0.57 | 0 | 169 | 296.9 | 14900 | 33750 |
| Year | Population |
|---|---|
| April 2000 census | 291288 |
| April 2000 Estimate | 269773 |
| July 2000 Estimate | 271651 |
| July 2001 Estimate | 277756 |
| July 2002 Estimate | 279832 |
| July 2003 Estimate | 279318 |
| July 2004 Estimate | 281049 |
| July 2005 Estimate | 282115 |
| July 2006 Estimate | 285050 |
| July 2007 Estimate | 288805 |
| July 2008 Estimate | 293161 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 2856 | 2853 | 5709 |
| Kindergarten | 2031 | 1952 | 3983 |
| Elementary school | 15338 | 15190 | 30528 |
| High school | 7540 | 6707 | 14247 |
| College or graduate school | 18427 | 17230 | 35657 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Boulder County, Colorado | $55861 | $70572 | $28976 |
| Colorado, United States | $47203 | $55883 | $24049 |
| United States | $41994 | $50046 | $21587 |