Ada County, Idaho
As of the census of 2000, there were 300904 people, 113408 households, and 77361 families living in the county. The population density was 285.2 people per square mile (110.12/kmē), giving it the most densely populated county among the Idaho. There were 118516 housing units at an average density of 112.3 per square mile (43.36/kmē). The average household size was 2.59 and the average family size was 3.11. In the county Age distribution was 27.3% under the age of 18, 10.3% from 18 to 24, 32.5% from 25 to 44, 20.8% from 45 to 64, and 9.1% who were 65 or older. For every 100 males there were 99.4 females. For every 100 males age 18 and over, there were 101.2 females. As of July 2008, the estimated population of the county is 380920, The racial or ethnic makeup of the county was 355728 White, 5667 Black or African American, 3390 American Indian, 7962 Asian, 723 Native Hawaiian, and 7450 from two or more races.
The median income for a household in the county was $46140, it is Idaho's second wealthiest county by median household income. The median income for a family in the county was $54416, it is the second highest county by median family income in the U.S. state of Idaho. The per capita income for the county was $22519, making it the second highest county by per capita income in Idaho.
In 2000, 81730 pupils and students, of which 41606 are male and 40124 are female, 27.16% of the total population, are in the education system. Of which, total enrollment of student are in, 5005 nursery or pri school, 4344 kindergarten, 36592 elementary school, 17800 high school and 17989 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 | Boise City City | Ada County | 63.98 | 63.78 | 0.21 | 185787 | 2913.1 | 22696 | 42432 |
| 2 | Eagle City | Ada County | 9.28 | 9.19 | 0.09 | 11085 | 1206.3 | 27226 | 65313 |
| 3 | Garden City City | Ada County | 4.18 | 4.15 | 0.03 | 10624 | 2559.9 | 24242 | 38520 |
| 4 | Kuna City | Ada County | 2.39 | 2.39 | 0 | 5382 | 2249.9 | 13891 | 40617 |
| 5 | Meridian City | Ada County | 11.79 | 11.79 | 0 | 34919 | 2962.1 | 20150 | 53276 |
| 6 | Star City | Ada County | 0.86 | 0.86 | 0 | 1795 | 2092.5 | 15864 | 42337 |
| Year | Population |
|---|---|
| April 2000 census | 300904 |
| April 2000 Estimate | 300904 |
| July 2000 Estimate | 303139 |
| July 2001 Estimate | 313472 |
| July 2002 Estimate | 320867 |
| July 2003 Estimate | 326196 |
| July 2004 Estimate | 333322 |
| July 2005 Estimate | 346749 |
| July 2006 Estimate | 360869 |
| July 2007 Estimate | 373158 |
| July 2008 Estimate | 380920 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 2688 | 2317 | 5005 |
| Kindergarten | 2285 | 2059 | 4344 |
| Elementary school | 18815 | 17777 | 36592 |
| High school | 9216 | 8584 | 17800 |
| College or graduate school | 8602 | 9387 | 17989 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Ada County, Idaho | $46140 | $54416 | $22519 |
| Idaho, United States | $37572 | $43490 | $17841 |
| United States | $41994 | $50046 | $21587 |