Washington County, Oregon

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Washington County is a county located in Oregon, in the Western Region (Pacific) of United States. In 2000, the population was 445342. As of July 2008, the estimated population of the county is 529216, It is Oregon's second most populous county. The county comprises an area of 726.38 square miles (1881.32 square kilometre), of which, 723.75 square miles (1874.5 square kilometre) of it is land and 2.63 square miles (6.81 square kilometre) of it is water, makes it the sixth smallest by total area in Oregon.


As of the census of 2000, there were 445342 people in the county, organized into 169162 households, and 114074 families living in the county. The population density was 615.3 people per square mile (237.57/kmē), it is second most densely populated county in Oregon. There were 178913 housing units at an average density of 247.2 per square mile (95.44/kmē). The average household size was 2.61 people, and the average family size was 3.14 people. In the county the population is diverse age-wise, with 26.9% under the age of 18, 9.3% from 18 to 24, 34.1% from 25 to 44, 20.9% from 45 to 64, and 8.8% who were 65 or older. For every 100 females there were 99.1 males. For every 100 females age 18 and over, there were 97 males. As of July 2008, the population was estimated at 529216, The racial or ethnic makeup of the county was 85.91% White, 1.99% Black or African American, 0.78% American Indian, 8.47% Asian, 0.35% Native Hawaiian, and 2.5% from two or more races.

Population 2000-2008

School Enrollment 2000

GDP 2000

The median income for a household in the county was $52122, it would be the highest county by median household income in the U.S. state of Oregon. The median income for a family in the county was $61499, it is the wealthiest county in terms of median family income. The per capita income for the county was $24969, it is the second wealthiest county in terms of per capita income.

In 2000, 116491 pupils and students, of which 50.39% are male and 49.61% are female, 26.16% of the total population, are in the education system. Of which, percentage of enrollment student are in, 6.74% nursery or pri school, 6.14% kindergarten, 45.3% elementary school, 20.56% high school and 21.26% 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	Lake Oswego City	Clackamas County, Multnomah County, Washington County	10.95	10.35	0.61	35278	3409.7	42166	71597
2	Rivergrove City	Clackamas County, Washington County	0.18	0.18	0	324	1807.9	31546	85000
3	Wilsonville City	Clackamas County, Washington County	6.9	6.71	0.19	13991	2085.3	29786	52515
4	Portland City	Multnomah County, Washington County, Clackamas County	145.37	134.32	11.05	529121	3939.2	22643	40146
5	Aloha Cdp	Washington County	7.37	7.37	0	41741	5660.5	19685	52299
6	Banks City	Washington County	0.33	0.33	0	1286	3885.7	21354	57500
7	Beaverton City	Washington County	16.32	16.32	0	76129	4664.5	25419	47863
8	Cedar Hills Cdp	Washington County	2.32	2.31	0.01	8949	3880.9	26812	48200
9	Cedar Mill Cdp	Washington County	3.72	3.72	0	12597	3388.3	33555	65730
10	Cornelius City	Washington County	1.89	1.89	0	9652	5095.9	15290	45959
11	Durham City	Washington County	0.44	0.44	0	1382	3144.3	29099	51806
12	Forest Grove City	Washington County	4.73	4.6	0.13	17708	3850.5	16992	40135
13	Garden Home-whitford Cdp	Washington County	1.9	1.9	0	6931	3656.9	28681	52321
14	Gaston City	Washington County	0.22	0.22	0	600	2691.7	17758	36458
15	Hillsboro City	Washington County	21.58	21.57	0.01	70186	3253.8	21680	51737
16	King City City	Washington County	0.42	0.42	0	1949	4652.9	27536	28617
17	Metzger Cdp	Washington County	0.74	0.74	0	3354	4556	24121	41361
18	North Plains City	Washington County	0.78	0.78	0	1605	2044.7	18794	49563
19	Oak Hills Cdp	Washington County	1.54	1.54	0	9050	5864.8	27163	61217
20	Raleigh Hills Cdp	Washington County	1.53	1.53	0	5865	3829.5	37839	60714
21	Rockcreek Cdp	Washington County	2.01	2.01	0	9404	4689.8	30102	63958
22	Sherwood City	Washington County	4.07	4.07	0	11791	2895.5	25793	62518
23	Tigard City	Washington County	10.87	10.86	0.01	41223	3795.3	25110	51581
24	Tualatin City	Washington County, Clackamas County	7.78	7.78	0	22791	2928.5	26694	55762
25	West Haven-sylvan Cdp	Washington County	2.67	2.67	0	7147	2673.9	39055	56286
26	West Slope Cdp	Washington County	1.73	1.73	0	6442	3727.1	32514	50984

Year	Population
April 2000 census	445342
April 2000 Estimate	445348
July 2000 Estimate	448509
July 2001 Estimate	462481
July 2002 Estimate	471724
July 2003 Estimate	478630
July 2004 Estimate	486036
July 2005 Estimate	498151
July 2006 Estimate	510927
July 2007 Estimate	519794
July 2008 Estimate	529216

School	Male	Female	Total
Nursery school	3879	3973	7852
Kindergarten	3855	3297	7152
Elementary school	27098	25671	52769
High school	12170	11777	23947
College or graduate school	11699	13072	24771

Place	Median household income	Median family income	Per capita income
Washington County, Oregon	$52122	$61499	$24969
Oregon, United States	$40916	$48680	$20940
United States	$41994	$50046	$21587