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Fairfax County Historical Age Data

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ACS 2010-2014 data

Total population: 1,117,072

Median Age (see rank)

Fairfax County	37.40 years old
Virginia	37.60 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Fairfax County	36.40 years old
Virginia	36.20 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Fairfax County	38.30 years old
Virginia	38.90 years old
U.S.	38.80 years old

	Fairfax County	% of the Total Population	Virginia	U.S.
Under 5 years	75,283	6.74%, see rank	6.25%	6.36%
5 to 9 years	75,518	6.76%, see rank	6.34%	6.51%
10 to 14 years	73,244	6.56%, see rank	6.32%	6.59%
15 to 19 years	71,274	6.38%, see rank	6.72%	6.85%
20 to 24 years	62,658	5.61%, see rank	7.16%	7.13%
25 to 34 years	162,476	14.54%, see rank	13.90%	13.47%
35 to 44 years	166,165	14.88%, see rank	13.42%	12.96%
45 to 54 years	173,504	15.53%, see rank	14.64%	14.09%
55 to 64 years	137,930	12.35%, see rank	12.28%	12.29%
65 to 74 years	72,363	6.48%, see rank	7.51%	7.64%
75 to 84	33,086	2.96%, see rank	3.85%	4.25%
85 years and over	13,571	1.21%, see rank	1.60%	1.85%

US Census 2010 data

Total population: 1,081,726

Median Age (see rank)

Fairfax County	37.30 years old
Virginia	37.50 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Fairfax County	36.30 years old
Virginia	36.10 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Fairfax County	38.30 years old
Virginia	38.70 years old
U.S.	38.50 years old

	Fairfax County	% of the Total Population	Virginia	U.S.
Under 5 years	72,960	6.74%, see rank	6.37%	6.54%
5 to 9 years	72,670	6.72%, see rank	6.40%	6.59%
10 to 14 years	72,332	6.69%, see rank	6.39%	6.70%
15 to 19 years	67,443	6.23%, see rank	6.89%	7.14%
20 to 24 years	60,139	5.56%, see rank	7.15%	6.99%
25 to 34 years	158,642	14.67%, see rank	13.63%	13.30%
35 to 44 years	164,990	15.25%, see rank	13.86%	13.30%
45 to 54 years	174,767	16.16%, see rank	15.17%	14.58%
55 to 64 years	131,493	12.16%, see rank	11.94%	11.82%
65 to 74 years	62,967	5.82%, see rank	6.87%	7.03%
75 to 84	30,489	2.82%, see rank	3.81%	4.23%
85 years and over	12,834	1.19%, see rank	1.53%	1.78%

ACS 2008-2012 data

Total population: 1,083,770

Median Age (see rank)

Fairfax County	37.50 years old
Virginia	37.40 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Fairfax County	36.40 years old
Virginia	36.10 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Fairfax County	38.40 years old
Virginia	38.70 years old
U.S.	38.50 years old

	Fairfax County	% of the Total Population	Virginia	U.S.
Under 5 years	73,035	6.74%, see rank	6.33%	6.51%
5 to 9 years	71,669	6.61%, see rank	6.34%	6.57%
10 to 14 years	72,382	6.68%, see rank	6.43%	6.68%
15 to 19 years	68,758	6.34%, see rank	6.90%	7.09%
20 to 24 years	60,575	5.59%, see rank	7.17%	7.04%
25 to 34 years	158,110	14.59%, see rank	13.64%	13.32%
35 to 44 years	165,278	15.25%, see rank	13.90%	13.34%
45 to 54 years	173,709	16.03%, see rank	15.01%	14.44%
55 to 64 years	132,048	12.18%, see rank	11.95%	11.84%
65 to 74 years	64,154	5.92%, see rank	6.98%	7.12%
75 to 84	31,627	2.92%, see rank	3.83%	4.25%
85 years and over	12,425	1.15%, see rank	1.52%	1.78%

ACS 2006-2010 data

Total population: 1,048,554

Median Age (see rank)

Fairfax County	37.30 years old
Virginia	37.20 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Fairfax County	36.30 years old
Virginia	35.90 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Fairfax County	38.20 years old
Virginia	38.40 years old
U.S.	38.10 years old

	Fairfax County	% of the Total Population	Virginia	U.S.
Under 5 years	71,540	6.82%, see rank	6.46%	6.62%
5 to 9 years	69,284	6.61%, see rank	6.35%	6.62%
10 to 14 years	70,098	6.69%, see rank	6.54%	6.79%
15 to 19 years	67,244	6.41%, see rank	7.14%	7.28%
20 to 24 years	60,799	5.80%, see rank	7.10%	6.98%
25 to 34 years	150,353	14.34%, see rank	13.40%	13.22%
35 to 44 years	165,411	15.78%, see rank	14.57%	13.89%
45 to 54 years	170,790	16.29%, see rank	15.11%	14.57%
55 to 64 years	124,256	11.85%, see rank	11.49%	11.28%
65 to 74 years	56,867	5.42%, see rank	6.56%	6.74%
75 to 84	30,283	2.89%, see rank	3.86%	4.30%
85 years and over	11,629	1.11%, see rank	1.43%	1.70%

ACS 2005-2009 data

Total population: 1,012,751

Median Age (see rank)

Fairfax County	37.10 years old
Virginia	36.70 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Fairfax County	36.00 years old
Virginia	35.30 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Fairfax County	38.00 years old
Virginia	38.10 years old
U.S.	37.90 years old

	Fairfax County	% of the Total Population	Virginia	U.S.
Under 5 years	74,748	7.38%, see rank	6.75%	6.92%
5 to 9 years	67,239	6.64%, see rank	6.34%	6.59%
10 to 14 years	69,184	6.83%, see rank	6.57%	6.83%
15 to 19 years	66,883	6.60%, see rank	7.12%	7.15%
20 to 24 years	63,419	6.26%, see rank	7.28%	7.02%
25 to 34 years	133,807	13.21%, see rank	13.52%	13.42%
35 to 44 years	160,796	15.88%, see rank	14.85%	14.18%
45 to 54 years	163,836	16.18%, see rank	14.77%	14.48%
55 to 64 years	118,876	11.74%, see rank	11.05%	10.81%
65 to 74 years	53,561	5.29%, see rank	6.39%	6.50%
75 to 84	29,504	2.91%, see rank	3.91%	4.40%
85 years and over	10,898	1.08%, see rank	1.45%	1.71%

US Census 2000 data

Total population: 969,749

Median Age (see rank)

Fairfax County	35.90 years old
Virginia	35.70 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Fairfax County	35.10 years old
Virginia	34.50 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Fairfax County	36.70 years old
Virginia	36.80 years old
U.S.	36.50 years old

	Fairfax County	% of the Total Population	Virginia	U.S.
Under 5 years	67,781	6.99%, see rank	6.53%	6.81%
5 to 9 years	70,076	7.23%, see rank	6.99%	7.30%
10 to 14 years	68,544	7.07%, see rank	7.01%	7.29%
15 to 19 years	59,762	6.16%, see rank	6.84%	7.18%
20 to 24 years	52,425	5.41%, see rank	6.79%	6.74%
25 to 34 years	150,257	15.49%, see rank	14.65%	14.18%
35 to 44 years	178,871	18.45%, see rank	16.96%	16.04%
45 to 54 years	157,350	16.23%, see rank	14.12%	13.39%
55 to 64 years	87,865	9.06%, see rank	8.92%	8.63%
65 to 74 years	44,403	4.58%, see rank	6.11%	6.54%
75 to 84	25,493	2.63%, see rank	3.85%	4.39%
85 years and over	6,922	0.71%, see rank	1.23%	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.