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Washington County Historical Age Data

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ACS 2010-2014 data

Total population: 547,451

Median Age (see rank)

Washington County	35.90 years old
Oregon	38.90 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Washington County	35.00 years old
Oregon	37.90 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Washington County	36.80 years old
Oregon	40.00 years old
U.S.	38.80 years old

	Washington County	% of the Total Population	Oregon	U.S.
Under 5 years	37,351	6.82%, see rank	5.94%	6.36%
5 to 9 years	38,081	6.96%, see rank	6.15%	6.51%
10 to 14 years	38,701	7.07%, see rank	6.18%	6.59%
15 to 19 years	34,739	6.35%, see rank	6.35%	6.85%
20 to 24 years	32,805	5.99%, see rank	6.73%	7.13%
25 to 34 years	84,197	15.38%, see rank	13.65%	13.47%
35 to 44 years	83,371	15.23%, see rank	13.02%	12.96%
45 to 54 years	75,432	13.78%, see rank	13.44%	14.09%
55 to 64 years	62,745	11.46%, see rank	13.61%	12.29%
65 to 74 years	34,334	6.27%, see rank	8.49%	7.64%
75 to 84	16,570	3.03%, see rank	4.36%	4.25%
85 years and over	9,125	1.67%, see rank	2.08%	1.85%

US Census 2010 data

Total population: 529,710

Median Age (see rank)

Washington County	35.30 years old
Oregon	38.40 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Washington County	34.40 years old
Oregon	37.30 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Washington County	36.20 years old
Oregon	39.50 years old
U.S.	38.50 years old

	Washington County	% of the Total Population	Oregon	U.S.
Under 5 years	38,248	7.22%, see rank	6.20%	6.54%
5 to 9 years	38,296	7.23%, see rank	6.19%	6.59%
10 to 14 years	37,286	7.04%, see rank	6.33%	6.70%
15 to 19 years	34,173	6.45%, see rank	6.65%	7.14%
20 to 24 years	31,635	5.97%, see rank	6.61%	6.99%
25 to 34 years	83,025	15.67%, see rank	13.68%	13.30%
35 to 44 years	81,070	15.30%, see rank	13.04%	13.30%
45 to 54 years	74,602	14.08%, see rank	14.07%	14.58%
55 to 64 years	58,266	11.00%, see rank	13.30%	11.82%
65 to 74 years	28,725	5.42%, see rank	7.57%	7.03%
75 to 84	16,069	3.03%, see rank	4.32%	4.23%
85 years and over	8,315	1.57%, see rank	2.03%	1.78%

ACS 2008-2012 data

Total population: 531,818

Median Age (see rank)

Washington County	35.40 years old
Oregon	38.40 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Washington County	34.50 years old
Oregon	37.30 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Washington County	36.30 years old
Oregon	39.50 years old
U.S.	38.50 years old

	Washington County	% of the Total Population	Oregon	U.S.
Under 5 years	37,989	7.14%, see rank	6.12%	6.51%
5 to 9 years	38,174	7.18%, see rank	6.23%	6.57%
10 to 14 years	37,230	7.00%, see rank	6.28%	6.68%
15 to 19 years	34,203	6.43%, see rank	6.59%	7.09%
20 to 24 years	31,864	5.99%, see rank	6.70%	7.04%
25 to 34 years	83,569	15.71%, see rank	13.67%	13.32%
35 to 44 years	81,582	15.34%, see rank	13.07%	13.34%
45 to 54 years	74,567	14.02%, see rank	13.98%	14.44%
55 to 64 years	58,584	11.02%, see rank	13.28%	11.84%
65 to 74 years	29,502	5.55%, see rank	7.70%	7.12%
75 to 84	16,421	3.09%, see rank	4.37%	4.25%
85 years and over	8,133	1.53%, see rank	2.02%	1.78%

ACS 2006-2010 data

Total population: 516,665

Median Age (see rank)

Washington County	34.90 years old
Oregon	38.10 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Washington County	34.00 years old
Oregon	37.00 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Washington County	35.90 years old
Oregon	39.10 years old
U.S.	38.10 years old

	Washington County	% of the Total Population	Oregon	U.S.
Under 5 years	38,148	7.38%, see rank	6.23%	6.62%
5 to 9 years	37,659	7.29%, see rank	6.28%	6.62%
10 to 14 years	36,121	6.99%, see rank	6.38%	6.79%
15 to 19 years	33,397	6.46%, see rank	6.82%	7.28%
20 to 24 years	31,688	6.13%, see rank	6.70%	6.98%
25 to 34 years	81,993	15.87%, see rank	13.53%	13.22%
35 to 44 years	80,762	15.63%, see rank	13.38%	13.89%
45 to 54 years	73,505	14.23%, see rank	14.52%	14.57%
55 to 64 years	53,857	10.42%, see rank	12.68%	11.28%
65 to 74 years	25,859	5.00%, see rank	7.10%	6.74%
75 to 84	16,009	3.10%, see rank	4.43%	4.30%
85 years and over	7,667	1.48%, see rank	1.97%	1.70%

ACS 2005-2009 data

Total population: 518,002

Median Age (see rank)

Washington County	34.50 years old
Oregon	37.70 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Washington County	33.80 years old
Oregon	36.70 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Washington County	35.20 years old
Oregon	38.80 years old
U.S.	37.90 years old

	Washington County	% of the Total Population	Oregon	U.S.
Under 5 years	39,408	7.61%, see rank	6.41%	6.92%
5 to 9 years	37,664	7.27%, see rank	6.31%	6.59%
10 to 14 years	36,388	7.02%, see rank	6.40%	6.83%
15 to 19 years	32,469	6.27%, see rank	6.74%	7.15%
20 to 24 years	31,967	6.17%, see rank	6.90%	7.02%
25 to 34 years	85,419	16.49%, see rank	13.51%	13.42%
35 to 44 years	81,454	15.72%, see rank	13.58%	14.18%
45 to 54 years	74,189	14.32%, see rank	14.80%	14.48%
55 to 64 years	51,516	9.95%, see rank	12.19%	10.81%
65 to 74 years	24,633	4.76%, see rank	6.78%	6.50%
75 to 84	15,756	3.04%, see rank	4.43%	4.40%
85 years and over	7,139	1.38%, see rank	1.96%	1.71%

US Census 2000 data

Total population: 445,342

Median Age (see rank)

Washington County	33.00 years old
Oregon	36.30 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Washington County	32.00 years old
Oregon	35.10 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Washington County	34.10 years old
Oregon	37.50 years old
U.S.	36.50 years old

	Washington County	% of the Total Population	Oregon	U.S.
Under 5 years	35,111	7.88%, see rank	6.52%	6.81%
5 to 9 years	34,317	7.71%, see rank	6.85%	7.30%
10 to 14 years	31,715	7.12%, see rank	7.08%	7.29%
15 to 19 years	29,553	6.64%, see rank	7.14%	7.18%
20 to 24 years	30,254	6.79%, see rank	6.73%	6.74%
25 to 34 years	76,375	17.15%, see rank	13.76%	14.18%
35 to 44 years	75,433	16.94%, see rank	15.39%	16.04%
45 to 54 years	61,343	13.77%, see rank	14.82%	13.39%
55 to 64 years	31,890	7.16%, see rank	8.90%	8.63%
65 to 74 years	19,218	4.32%, see rank	6.41%	6.54%
75 to 84	14,645	3.29%, see rank	4.72%	4.39%
85 years and over	5,488	1.23%, see rank	1.68%	1.51%

* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.