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Somerset County Historical Age Data

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ACS 2010-2014 data

Total population: 328,704

Median Age (see rank)

Somerset County	40.70 years old
New Jersey	39.30 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Somerset County	39.50 years old
New Jersey	37.70 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Somerset County	41.70 years old
New Jersey	40.70 years old
U.S.	38.80 years old

	Somerset County	% of the Total Population	New Jersey	U.S.
Under 5 years	18,672	5.68%, see rank	6.04%	6.36%
5 to 9 years	21,834	6.64%, see rank	6.27%	6.51%
10 to 14 years	23,708	7.21%, see rank	6.56%	6.59%
15 to 19 years	22,382	6.81%, see rank	6.63%	6.85%
20 to 24 years	16,039	4.88%, see rank	6.30%	7.13%
25 to 34 years	36,229	11.02%, see rank	12.77%	13.47%
35 to 44 years	46,769	14.23%, see rank	13.53%	12.96%
45 to 54 years	57,154	17.39%, see rank	15.37%	14.09%
55 to 64 years	42,339	12.88%, see rank	12.47%	12.29%
65 to 74 years	23,379	7.11%, see rank	7.55%	7.64%
75 to 84	13,252	4.03%, see rank	4.40%	4.25%
85 years and over	6,947	2.11%, see rank	2.13%	1.85%

US Census 2010 data

Total population: 323,444

Median Age (see rank)

Somerset County	40.20 years old
New Jersey	39.00 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Somerset County	39.00 years old
New Jersey	37.40 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Somerset County	41.30 years old
New Jersey	40.30 years old
U.S.	38.50 years old

	Somerset County	% of the Total Population	New Jersey	U.S.
Under 5 years	19,237	5.95%, see rank	6.15%	6.54%
5 to 9 years	22,488	6.95%, see rank	6.42%	6.59%
10 to 14 years	24,163	7.47%, see rank	6.68%	6.70%
15 to 19 years	21,406	6.62%, see rank	6.80%	7.14%
20 to 24 years	14,592	4.51%, see rank	6.16%	6.99%
25 to 34 years	36,425	11.26%, see rank	12.62%	13.30%
35 to 44 years	48,863	15.11%, see rank	14.08%	13.30%
45 to 54 years	57,513	17.78%, see rank	15.69%	14.58%
55 to 64 years	38,755	11.98%, see rank	11.90%	11.82%
65 to 74 years	20,721	6.41%, see rank	6.95%	7.03%
75 to 84	13,110	4.05%, see rank	4.49%	4.23%
85 years and over	6,171	1.91%, see rank	2.04%	1.78%

ACS 2008-2012 data

Total population: 323,650

Median Age (see rank)

Somerset County	40.20 years old
New Jersey	38.90 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Somerset County	39.00 years old
New Jersey	37.40 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Somerset County	41.20 years old
New Jersey	40.30 years old
U.S.	38.50 years old

	Somerset County	% of the Total Population	New Jersey	U.S.
Under 5 years	19,107	5.90%, see rank	6.12%	6.51%
5 to 9 years	22,639	6.99%, see rank	6.41%	6.57%
10 to 14 years	23,595	7.29%, see rank	6.65%	6.68%
15 to 19 years	21,736	6.72%, see rank	6.79%	7.09%
20 to 24 years	14,609	4.51%, see rank	6.15%	7.04%
25 to 34 years	36,153	11.17%, see rank	12.67%	13.32%
35 to 44 years	48,998	15.14%, see rank	14.11%	13.34%
45 to 54 years	57,068	17.63%, see rank	15.56%	14.44%
55 to 64 years	39,069	12.07%, see rank	11.94%	11.84%
65 to 74 years	21,260	6.57%, see rank	7.06%	7.12%
75 to 84	12,779	3.95%, see rank	4.52%	4.25%
85 years and over	6,637	2.05%, see rank	2.02%	1.78%

ACS 2006-2010 data

Total population: 319,347

Median Age (see rank)

Somerset County	39.70 years old
New Jersey	38.50 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Somerset County	38.20 years old
New Jersey	37.00 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Somerset County	40.80 years old
New Jersey	39.90 years old
U.S.	38.10 years old

	Somerset County	% of the Total Population	New Jersey	U.S.
Under 5 years	20,028	6.27%, see rank	6.27%	6.62%
5 to 9 years	23,163	7.25%, see rank	6.52%	6.62%
10 to 14 years	23,196	7.26%, see rank	6.75%	6.79%
15 to 19 years	20,894	6.54%, see rank	6.90%	7.28%
20 to 24 years	14,235	4.46%, see rank	6.03%	6.98%
25 to 34 years	36,061	11.29%, see rank	12.59%	13.22%
35 to 44 years	51,726	16.20%, see rank	14.85%	13.89%
45 to 54 years	55,618	17.42%, see rank	15.46%	14.57%
55 to 64 years	36,240	11.35%, see rank	11.38%	11.28%
65 to 74 years	19,421	6.08%, see rank	6.70%	6.74%
75 to 84	12,477	3.91%, see rank	4.63%	4.30%
85 years and over	6,288	1.97%, see rank	1.91%	1.70%

ACS 2005-2009 data

Total population: 320,712

Median Age (see rank)

Somerset County	39.00 years old
New Jersey	38.30 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Somerset County	37.70 years old
New Jersey	36.90 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Somerset County	40.30 years old
New Jersey	39.80 years old
U.S.	37.90 years old

	Somerset County	% of the Total Population	New Jersey	U.S.
Under 5 years	21,251	6.63%, see rank	6.49%	6.92%
5 to 9 years	22,890	7.14%, see rank	6.51%	6.59%
10 to 14 years	23,326	7.27%, see rank	6.74%	6.83%
15 to 19 years	20,547	6.41%, see rank	6.72%	7.15%
20 to 24 years	15,808	4.93%, see rank	5.99%	7.02%
25 to 34 years	36,291	11.32%, see rank	12.75%	13.42%
35 to 44 years	53,706	16.75%, see rank	15.22%	14.18%
45 to 54 years	54,631	17.03%, see rank	15.37%	14.48%
55 to 64 years	34,566	10.78%, see rank	11.02%	10.81%
65 to 74 years	19,202	5.99%, see rank	6.66%	6.50%
75 to 84	12,681	3.95%, see rank	4.65%	4.40%
85 years and over	5,813	1.81%, see rank	1.87%	1.71%

US Census 2000 data

Total population: 297,490

Median Age (see rank)

Somerset County	37.20 years old
New Jersey	36.70 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Somerset County	36.30 years old
New Jersey	35.50 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Somerset County	38.00 years old
New Jersey	38.00 years old
U.S.	36.50 years old

	Somerset County	% of the Total Population	New Jersey	U.S.
Under 5 years	22,207	7.46%, see rank	6.70%	6.81%
5 to 9 years	22,783	7.66%, see rank	7.18%	7.30%
10 to 14 years	20,554	6.91%, see rank	7.02%	7.29%
15 to 19 years	15,415	5.18%, see rank	6.24%	7.18%
20 to 24 years	12,547	4.22%, see rank	5.71%	6.74%
25 to 34 years	42,367	14.24%, see rank	14.13%	14.18%
35 to 44 years	58,297	19.60%, see rank	17.06%	16.04%
45 to 54 years	43,861	14.74%, see rank	13.77%	13.39%
55 to 64 years	26,078	8.77%, see rank	8.96%	8.63%
65 to 74 years	17,770	5.97%, see rank	6.83%	6.54%
75 to 84	11,482	3.86%, see rank	4.78%	4.39%
85 years and over	4,129	1.39%, 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.