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Clay County Historical Age Data

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ACS 2010-2014 data

Total population: 13,675

Median Age (see rank)

Clay County	42.70 years old
Illinois	37.00 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Clay County	41.80 years old
Illinois	35.70 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Clay County	43.80 years old
Illinois	38.40 years old
U.S.	38.80 years old

	Clay County	% of the Total Population	Illinois	U.S.
Under 5 years	840	6.14%, see rank	6.30%	6.36%
5 to 9 years	832	6.08%, see rank	6.58%	6.51%
10 to 14 years	967	7.07%, see rank	6.71%	6.59%
15 to 19 years	838	6.13%, see rank	6.94%	6.85%
20 to 24 years	832	6.08%, see rank	6.95%	7.13%
25 to 34 years	1,446	10.57%, see rank	13.84%	13.47%
35 to 44 years	1,516	11.09%, see rank	13.20%	12.96%
45 to 54 years	1,939	14.18%, see rank	14.17%	14.09%
55 to 64 years	1,981	14.49%, see rank	12.13%	12.29%
65 to 74 years	1,280	9.36%, see rank	7.18%	7.64%
75 to 84	881	6.44%, see rank	4.10%	4.25%
85 years and over	323	2.36%, see rank	1.90%	1.85%

US Census 2010 data

Total population: 13,815

Median Age (see rank)

Clay County	42.20 years old
Illinois	36.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Clay County	40.60 years old
Illinois	35.20 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Clay County	43.70 years old
Illinois	37.90 years old
U.S.	38.50 years old

	Clay County	% of the Total Population	Illinois	U.S.
Under 5 years	852	6.17%, see rank	6.51%	6.54%
5 to 9 years	903	6.54%, see rank	6.70%	6.59%
10 to 14 years	853	6.17%, see rank	6.85%	6.70%
15 to 19 years	926	6.70%, see rank	7.19%	7.14%
20 to 24 years	708	5.12%, see rank	6.85%	6.99%
25 to 34 years	1,552	11.23%, see rank	13.84%	13.30%
35 to 44 years	1,602	11.60%, see rank	13.45%	13.30%
45 to 54 years	2,083	15.08%, see rank	14.58%	14.58%
55 to 64 years	1,868	13.52%, see rank	11.48%	11.82%
65 to 74 years	1,224	8.86%, see rank	6.62%	7.03%
75 to 84	853	6.17%, see rank	4.09%	4.23%
85 years and over	391	2.83%, see rank	1.83%	1.78%

ACS 2008-2012 data

Total population: 13,828

Median Age (see rank)

Clay County	42.50 years old
Illinois	36.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Clay County	40.70 years old
Illinois	35.30 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Clay County	43.60 years old
Illinois	38.00 years old
U.S.	38.50 years old

	Clay County	% of the Total Population	Illinois	U.S.
Under 5 years	880	6.36%, see rank	6.50%	6.51%
5 to 9 years	925	6.69%, see rank	6.68%	6.57%
10 to 14 years	848	6.13%, see rank	6.82%	6.68%
15 to 19 years	903	6.53%, see rank	7.16%	7.09%
20 to 24 years	712	5.15%, see rank	6.88%	7.04%
25 to 34 years	1,478	10.69%, see rank	13.84%	13.32%
35 to 44 years	1,651	11.94%, see rank	13.49%	13.34%
45 to 54 years	2,038	14.74%, see rank	14.46%	14.44%
55 to 64 years	1,907	13.79%, see rank	11.52%	11.84%
65 to 74 years	1,233	8.92%, see rank	6.71%	7.12%
75 to 84	924	6.68%, see rank	4.11%	4.25%
85 years and over	329	2.38%, see rank	1.83%	1.78%

ACS 2006-2010 data

Total population: 13,927

Median Age (see rank)

Clay County	41.60 years old
Illinois	36.20 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Clay County	40.30 years old
Illinois	34.90 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Clay County	43.00 years old
Illinois	37.60 years old
U.S.	38.10 years old

	Clay County	% of the Total Population	Illinois	U.S.
Under 5 years	909	6.53%, see rank	6.63%	6.62%
5 to 9 years	847	6.08%, see rank	6.78%	6.62%
10 to 14 years	942	6.76%, see rank	6.94%	6.79%
15 to 19 years	910	6.53%, see rank	7.31%	7.28%
20 to 24 years	693	4.98%, see rank	6.86%	6.98%
25 to 34 years	1,498	10.76%, see rank	13.78%	13.22%
35 to 44 years	1,781	12.79%, see rank	13.96%	13.89%
45 to 54 years	2,091	15.01%, see rank	14.55%	14.57%
55 to 64 years	1,764	12.67%, see rank	10.89%	11.28%
65 to 74 years	1,206	8.66%, see rank	6.36%	6.74%
75 to 84	925	6.64%, see rank	4.17%	4.30%
85 years and over	361	2.59%, see rank	1.77%	1.70%

ACS 2005-2009 data

Total population: 13,729

Median Age (see rank)

Clay County	41.50 years old
Illinois	35.90 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Clay County	40.30 years old
Illinois	34.60 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Clay County	43.00 years old
Illinois	37.20 years old
U.S.	37.90 years old

	Clay County	% of the Total Population	Illinois	U.S.
Under 5 years	914	6.66%, see rank	6.97%	6.92%
5 to 9 years	832	6.06%, see rank	6.76%	6.59%
10 to 14 years	883	6.43%, see rank	6.96%	6.83%
15 to 19 years	875	6.37%, see rank	7.24%	7.15%
20 to 24 years	748	5.45%, see rank	7.08%	7.02%
25 to 34 years	1,558	11.35%, see rank	13.73%	13.42%
35 to 44 years	1,725	12.56%, see rank	14.23%	14.18%
45 to 54 years	2,030	14.79%, see rank	14.47%	14.48%
55 to 64 years	1,700	12.38%, see rank	10.43%	10.81%
65 to 74 years	1,162	8.46%, see rank	6.21%	6.50%
75 to 84	935	6.81%, see rank	4.17%	4.40%
85 years and over	367	2.67%, see rank	1.74%	1.71%

US Census 2000 data

Total population: 14,560

Median Age (see rank)

Clay County	39.70 years old
Illinois	34.70 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Clay County	37.90 years old
Illinois	33.30 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Clay County	41.40 years old
Illinois	36.00 years old
U.S.	36.50 years old

	Clay County	% of the Total Population	Illinois	U.S.
Under 5 years	859	5.90%, see rank	7.06%	6.81%
5 to 9 years	992	6.81%, see rank	7.49%	7.30%
10 to 14 years	1,009	6.93%, see rank	7.29%	7.29%
15 to 19 years	996	6.84%, see rank	7.20%	7.18%
20 to 24 years	789	5.42%, see rank	6.85%	6.74%
25 to 34 years	1,684	11.57%, see rank	14.59%	14.18%
35 to 44 years	2,084	14.31%, see rank	15.97%	16.04%
45 to 54 years	1,896	13.02%, see rank	13.10%	13.39%
55 to 64 years	1,459	10.02%, see rank	8.38%	8.63%
65 to 74 years	1,273	8.74%, see rank	6.22%	6.54%
75 to 84	1,044	7.17%, see rank	4.31%	4.39%
85 years and over	475	3.26%, 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.