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Middlesex County Historical Age Data

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ACS 2010-2014 data

Total population: 824,046

Median Age (see rank)

Middlesex County	37.60 years old
New Jersey	39.30 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Middlesex County	36.40 years old
New Jersey	37.70 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Middlesex County	38.70 years old
New Jersey	40.70 years old
U.S.	38.80 years old

	Middlesex County	% of the Total Population	New Jersey	U.S.
Under 5 years	50,202	6.09%, see rank	6.04%	6.36%
5 to 9 years	50,687	6.15%, see rank	6.27%	6.51%
10 to 14 years	51,734	6.28%, see rank	6.56%	6.59%
15 to 19 years	56,988	6.92%, see rank	6.63%	6.85%
20 to 24 years	57,927	7.03%, see rank	6.30%	7.13%
25 to 34 years	114,437	13.89%, see rank	12.77%	13.47%
35 to 44 years	116,999	14.20%, see rank	13.53%	12.96%
45 to 54 years	121,479	14.74%, see rank	15.37%	14.09%
55 to 64 years	97,835	11.87%, see rank	12.47%	12.29%
65 to 74 years	56,481	6.85%, see rank	7.55%	7.64%
75 to 84	33,163	4.02%, see rank	4.40%	4.25%
85 years and over	16,114	1.96%, see rank	2.13%	1.85%

US Census 2010 data

Total population: 809,858

Median Age (see rank)

Middlesex County	37.20 years old
New Jersey	39.00 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Middlesex County	36.00 years old
New Jersey	37.40 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Middlesex County	38.40 years old
New Jersey	40.30 years old
U.S.	38.50 years old

	Middlesex County	% of the Total Population	New Jersey	U.S.
Under 5 years	50,006	6.17%, see rank	6.15%	6.54%
5 to 9 years	51,052	6.30%, see rank	6.42%	6.59%
10 to 14 years	51,542	6.36%, see rank	6.68%	6.70%
15 to 19 years	57,626	7.12%, see rank	6.80%	7.14%
20 to 24 years	58,117	7.18%, see rank	6.16%	6.99%
25 to 34 years	111,577	13.78%, see rank	12.62%	13.30%
35 to 44 years	117,515	14.51%, see rank	14.08%	13.30%
45 to 54 years	121,924	15.05%, see rank	15.69%	14.58%
55 to 64 years	91,037	11.24%, see rank	11.90%	11.82%
65 to 74 years	50,732	6.26%, see rank	6.95%	7.03%
75 to 84	33,857	4.18%, see rank	4.49%	4.23%
85 years and over	14,873	1.84%, see rank	2.04%	1.78%

ACS 2008-2012 data

Total population: 811,064

Median Age (see rank)

Middlesex County	37.20 years old
New Jersey	38.90 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Middlesex County	36.00 years old
New Jersey	37.40 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Middlesex County	38.40 years old
New Jersey	40.30 years old
U.S.	38.50 years old

	Middlesex County	% of the Total Population	New Jersey	U.S.
Under 5 years	49,980	6.16%, see rank	6.12%	6.51%
5 to 9 years	52,438	6.47%, see rank	6.41%	6.57%
10 to 14 years	49,747	6.13%, see rank	6.65%	6.68%
15 to 19 years	57,351	7.07%, see rank	6.79%	7.09%
20 to 24 years	57,701	7.11%, see rank	6.15%	7.04%
25 to 34 years	112,520	13.87%, see rank	12.67%	13.32%
35 to 44 years	118,129	14.56%, see rank	14.11%	13.34%
45 to 54 years	121,280	14.95%, see rank	15.56%	14.44%
55 to 64 years	91,284	11.25%, see rank	11.94%	11.84%
65 to 74 years	51,812	6.39%, see rank	7.06%	7.12%
75 to 84	33,944	4.19%, see rank	4.52%	4.25%
85 years and over	14,878	1.83%, see rank	2.02%	1.78%

ACS 2006-2010 data

Total population: 798,882

Median Age (see rank)

Middlesex County	36.90 years old
New Jersey	38.50 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Middlesex County	35.70 years old
New Jersey	37.00 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Middlesex County	38.10 years old
New Jersey	39.90 years old
U.S.	38.10 years old

	Middlesex County	% of the Total Population	New Jersey	U.S.
Under 5 years	50,702	6.35%, see rank	6.27%	6.62%
5 to 9 years	51,488	6.45%, see rank	6.52%	6.62%
10 to 14 years	49,664	6.22%, see rank	6.75%	6.79%
15 to 19 years	57,603	7.21%, see rank	6.90%	7.28%
20 to 24 years	55,404	6.94%, see rank	6.03%	6.98%
25 to 34 years	111,988	14.02%, see rank	12.59%	13.22%
35 to 44 years	120,693	15.11%, see rank	14.85%	13.89%
45 to 54 years	119,395	14.95%, see rank	15.46%	14.57%
55 to 64 years	85,024	10.64%, see rank	11.38%	11.28%
65 to 74 years	48,494	6.07%, see rank	6.70%	6.74%
75 to 84	34,814	4.36%, see rank	4.63%	4.30%
85 years and over	13,613	1.70%, see rank	1.91%	1.70%

ACS 2005-2009 data

Total population: 781,957

Median Age (see rank)

Middlesex County	36.60 years old
New Jersey	38.30 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Middlesex County	35.60 years old
New Jersey	36.90 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Middlesex County	37.80 years old
New Jersey	39.80 years old
U.S.	37.90 years old

	Middlesex County	% of the Total Population	New Jersey	U.S.
Under 5 years	52,171	6.67%, see rank	6.49%	6.92%
5 to 9 years	50,525	6.46%, see rank	6.51%	6.59%
10 to 14 years	49,616	6.35%, see rank	6.74%	6.83%
15 to 19 years	54,134	6.92%, see rank	6.72%	7.15%
20 to 24 years	49,084	6.28%, see rank	5.99%	7.02%
25 to 34 years	115,869	14.82%, see rank	12.75%	13.42%
35 to 44 years	120,055	15.35%, see rank	15.22%	14.18%
45 to 54 years	115,937	14.83%, see rank	15.37%	14.48%
55 to 64 years	79,490	10.17%, see rank	11.02%	10.81%
65 to 74 years	47,068	6.02%, see rank	6.66%	6.50%
75 to 84	34,615	4.43%, see rank	4.65%	4.40%
85 years and over	13,393	1.71%, see rank	1.87%	1.71%

US Census 2000 data

Total population: 750,162

Median Age (see rank)

Middlesex County	35.70 years old
New Jersey	36.70 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Middlesex County	34.50 years old
New Jersey	35.50 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Middlesex County	36.80 years old
New Jersey	38.00 years old
U.S.	36.50 years old

	Middlesex County	% of the Total Population	New Jersey	U.S.
Under 5 years	49,390	6.58%, see rank	6.70%	6.81%
5 to 9 years	50,933	6.79%, see rank	7.18%	7.30%
10 to 14 years	49,207	6.56%, see rank	7.02%	7.29%
15 to 19 years	48,429	6.46%, see rank	6.24%	7.18%
20 to 24 years	50,963	6.79%, see rank	5.71%	6.74%
25 to 34 years	117,105	15.61%, see rank	14.13%	14.18%
35 to 44 years	128,839	17.17%, see rank	17.06%	16.04%
45 to 54 years	100,323	13.37%, see rank	13.77%	13.39%
55 to 64 years	62,383	8.32%, see rank	8.96%	8.63%
65 to 74 years	48,779	6.50%, see rank	6.83%	6.54%
75 to 84	34,387	4.58%, see rank	4.78%	4.39%
85 years and over	9,424	1.26%, see rank	1.62%	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.