Benton County, Washington
According to 2000 Census Bureau, there were 142475 residents, 52866 households, and 38075 families in the county. The population density was 83.7 people per square mile (32.32/kmē), it is the ninth most populated county in terms of population density. There were 55963 housing units at an average density of 32.9 per square mile (12.7/kmē). The average household size was 2.68 persons, and the average family size was 3.17 persons. In the county the population is diverse age-wise, with 29.7% under the age of 18, 8.6% from 18 to 24, 28.5% from 25 to 44, 22.9% from 45 to 64, and 10.3% who were 65 or older. For every 100 females there were 98.7 males. For every 100 females age 18 and over, there were 96.3 males. The county's estimated population as of July 2008 was 163058, The racial or ethnic makeup of the county was 93.17% White, 1.43% Black or African American, 1% American Indian, 2.38% Asian, 0.14% Native Hawaiian, and 1.87% from two or more races.
The median income for a household in the county was $47044, making its Washington's fourth highest county by median household income. The median income for a family in the county was $54146, it is Washington's fourth wealthiest county by median family income. The per capita income for the county was $21301, making its Washington's ninth highest county by per capita income.
In 2000, 40139 pupils and students, of which 20082 are male and 20057 are female, 28.17% of the total population, are in the education system. Of which, total enrollment of student are in, 2519 nursery or pri school, 2328 kindergarten, 19456 elementary school, 10047 high school and 5789 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 | Benton City City | Benton County | 1.75 | 1.74 | 0.01 | 2624 | 1507.8 | 13971 | 33636 |
| 2 | Finley Cdp | Benton County | 14.56 | 11.51 | 3.04 | 5770 | 501.2 | 17282 | 42820 |
| 3 | Highland Cdp | Benton County | 27.64 | 27.62 | 0.01 | 3388 | 122.6 | 22703 | 61136 |
| 4 | Kennewick City | Benton County | 24.32 | 22.93 | 1.38 | 54693 | 2384.9 | 20152 | 41213 |
| 5 | Prosser City | Benton County | 4.43 | 4.3 | 0.13 | 4838 | 1125.1 | 16302 | 39185 |
| 6 | Richland City | Benton County | 37.76 | 34.82 | 2.94 | 38708 | 1111.8 | 25494 | 53092 |
| 7 | West Richland City | Benton County | 21.81 | 21.72 | 0.09 | 8385 | 386.1 | 22499 | 57750 |
| Year | Population |
|---|---|
| April 2000 census | 142475 |
| April 2000 Estimate | 142478 |
| July 2000 Estimate | 143085 |
| July 2001 Estimate | 145574 |
| July 2002 Estimate | 149671 |
| July 2003 Estimate | 152513 |
| July 2004 Estimate | 154276 |
| July 2005 Estimate | 155930 |
| July 2006 Estimate | 157049 |
| July 2007 Estimate | 158781 |
| July 2008 Estimate | 163058 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 1196 | 1323 | 2519 |
| Kindergarten | 1239 | 1089 | 2328 |
| Elementary school | 9915 | 9541 | 19456 |
| High school | 5042 | 5005 | 10047 |
| College or graduate school | 2690 | 3099 | 5789 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Benton County, Washington | $47044 | $54146 | $21301 |
| Washington, United States | $45776 | $53760 | $22973 |
| United States | $41994 | $50046 | $21587 |