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Mercer County Historical Age Data

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ACS 2010-2014 data

Total population: 16,204

Median Age (see rank)

Mercer County	44.30 years old
Illinois	37.00 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Mercer County	43.20 years old
Illinois	35.70 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Mercer County	45.10 years old
Illinois	38.40 years old
U.S.	38.80 years old

	Mercer County	% of the Total Population	Illinois	U.S.
Under 5 years	868	5.36%, see rank	6.30%	6.36%
5 to 9 years	931	5.75%, see rank	6.58%	6.51%
10 to 14 years	1,170	7.22%, see rank	6.71%	6.59%
15 to 19 years	986	6.08%, see rank	6.94%	6.85%
20 to 24 years	810	5.00%, see rank	6.95%	7.13%
25 to 34 years	1,588	9.80%, see rank	13.84%	13.47%
35 to 44 years	1,873	11.56%, see rank	13.20%	12.96%
45 to 54 years	2,461	15.19%, see rank	14.17%	14.09%
55 to 64 years	2,365	14.60%, see rank	12.13%	12.29%
65 to 74 years	1,717	10.60%, see rank	7.18%	7.64%
75 to 84	1,000	6.17%, see rank	4.10%	4.25%
85 years and over	435	2.68%, see rank	1.90%	1.85%

US Census 2010 data

Total population: 16,434

Median Age (see rank)

Mercer County	43.70 years old
Illinois	36.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Mercer County	42.90 years old
Illinois	35.20 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Mercer County	44.50 years old
Illinois	37.90 years old
U.S.	38.50 years old

	Mercer County	% of the Total Population	Illinois	U.S.
Under 5 years	964	5.87%, see rank	6.51%	6.54%
5 to 9 years	1,013	6.16%, see rank	6.70%	6.59%
10 to 14 years	1,117	6.80%, see rank	6.85%	6.70%
15 to 19 years	1,016	6.18%, see rank	7.19%	7.14%
20 to 24 years	754	4.59%, see rank	6.85%	6.99%
25 to 34 years	1,630	9.92%, see rank	13.84%	13.30%
35 to 44 years	2,000	12.17%, see rank	13.45%	13.30%
45 to 54 years	2,612	15.89%, see rank	14.58%	14.58%
55 to 64 years	2,327	14.16%, see rank	11.48%	11.82%
65 to 74 years	1,608	9.78%, see rank	6.62%	7.03%
75 to 84	921	5.60%, see rank	4.09%	4.23%
85 years and over	472	2.87%, see rank	1.83%	1.78%

ACS 2008-2012 data

Total population: 16,421

Median Age (see rank)

Mercer County	43.70 years old
Illinois	36.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Mercer County	42.30 years old
Illinois	35.30 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Mercer County	44.50 years old
Illinois	38.00 years old
U.S.	38.50 years old

	Mercer County	% of the Total Population	Illinois	U.S.
Under 5 years	933	5.68%, see rank	6.50%	6.51%
5 to 9 years	990	6.03%, see rank	6.68%	6.57%
10 to 14 years	1,180	7.19%, see rank	6.82%	6.68%
15 to 19 years	1,009	6.14%, see rank	7.16%	7.09%
20 to 24 years	749	4.56%, see rank	6.88%	7.04%
25 to 34 years	1,642	10.00%, see rank	13.84%	13.32%
35 to 44 years	2,004	12.20%, see rank	13.49%	13.34%
45 to 54 years	2,573	15.67%, see rank	14.46%	14.44%
55 to 64 years	2,330	14.19%, see rank	11.52%	11.84%
65 to 74 years	1,607	9.79%, see rank	6.71%	7.12%
75 to 84	980	5.97%, see rank	4.11%	4.25%
85 years and over	424	2.58%, see rank	1.83%	1.78%

ACS 2006-2010 data

Total population: 16,551

Median Age (see rank)

Mercer County	43.00 years old
Illinois	36.20 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Mercer County	41.80 years old
Illinois	34.90 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Mercer County	43.90 years old
Illinois	37.60 years old
U.S.	38.10 years old

	Mercer County	% of the Total Population	Illinois	U.S.
Under 5 years	954	5.76%, see rank	6.63%	6.62%
5 to 9 years	1,134	6.85%, see rank	6.78%	6.62%
10 to 14 years	1,059	6.40%, see rank	6.94%	6.79%
15 to 19 years	1,052	6.36%, see rank	7.31%	7.28%
20 to 24 years	770	4.65%, see rank	6.86%	6.98%
25 to 34 years	1,655	10.00%, see rank	13.78%	13.22%
35 to 44 years	2,135	12.90%, see rank	13.96%	13.89%
45 to 54 years	2,612	15.78%, see rank	14.55%	14.57%
55 to 64 years	2,313	13.97%, see rank	10.89%	11.28%
65 to 74 years	1,496	9.04%, see rank	6.36%	6.74%
75 to 84	779	4.71%, see rank	4.17%	4.30%
85 years and over	592	3.58%, see rank	1.77%	1.70%

ACS 2005-2009 data

Total population: 16,440

Median Age (see rank)

Mercer County	42.70 years old
Illinois	35.90 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Mercer County	41.10 years old
Illinois	34.60 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Mercer County	44.10 years old
Illinois	37.20 years old
U.S.	37.90 years old

	Mercer County	% of the Total Population	Illinois	U.S.
Under 5 years	887	5.40%, see rank	6.97%	6.92%
5 to 9 years	1,109	6.75%, see rank	6.76%	6.59%
10 to 14 years	1,063	6.47%, see rank	6.96%	6.83%
15 to 19 years	1,104	6.72%, see rank	7.24%	7.15%
20 to 24 years	817	4.97%, see rank	7.08%	7.02%
25 to 34 years	1,589	9.67%, see rank	13.73%	13.42%
35 to 44 years	2,212	13.45%, see rank	14.23%	14.18%
45 to 54 years	2,570	15.63%, see rank	14.47%	14.48%
55 to 64 years	2,271	13.81%, see rank	10.43%	10.81%
65 to 74 years	1,460	8.88%, see rank	6.21%	6.50%
75 to 84	783	4.76%, see rank	4.17%	4.40%
85 years and over	575	3.50%, see rank	1.74%	1.71%

US Census 2000 data

Total population: 16,957

Median Age (see rank)

Mercer County	39.50 years old
Illinois	34.70 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Mercer County	38.70 years old
Illinois	33.30 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Mercer County	40.30 years old
Illinois	36.00 years old
U.S.	36.50 years old

	Mercer County	% of the Total Population	Illinois	U.S.
Under 5 years	960	5.66%, see rank	7.06%	6.81%
5 to 9 years	1,134	6.69%, see rank	7.49%	7.30%
10 to 14 years	1,298	7.65%, see rank	7.29%	7.29%
15 to 19 years	1,270	7.49%, see rank	7.20%	7.18%
20 to 24 years	779	4.59%, see rank	6.85%	6.74%
25 to 34 years	1,858	10.96%, see rank	14.59%	14.18%
35 to 44 years	2,646	15.60%, see rank	15.97%	16.04%
45 to 54 years	2,460	14.51%, see rank	13.10%	13.39%
55 to 64 years	1,850	10.91%, see rank	8.38%	8.63%
65 to 74 years	1,332	7.86%, see rank	6.22%	6.54%
75 to 84	998	5.89%, see rank	4.31%	4.39%
85 years and over	372	2.19%, see rank	1.55%	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.