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Piatt County Historical Age Data

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ACS 2010-2014 data

Total population: 16,552

Median Age (see rank)

Piatt County	43.00 years old
Illinois	37.00 years old
U.S.	37.40 years old

Median Age, Male (see rank)

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

Median Age, Female (see rank)

Piatt County	44.30 years old
Illinois	38.40 years old
U.S.	38.80 years old

	Piatt County	% of the Total Population	Illinois	U.S.
Under 5 years	885	5.35%, see rank	6.30%	6.36%
5 to 9 years	1,171	7.07%, see rank	6.58%	6.51%
10 to 14 years	1,003	6.06%, see rank	6.71%	6.59%
15 to 19 years	1,126	6.80%, see rank	6.94%	6.85%
20 to 24 years	793	4.79%, see rank	6.95%	7.13%
25 to 34 years	1,731	10.46%, see rank	13.84%	13.47%
35 to 44 years	1,964	11.87%, see rank	13.20%	12.96%
45 to 54 years	2,642	15.96%, see rank	14.17%	14.09%
55 to 64 years	2,369	14.31%, see rank	12.13%	12.29%
65 to 74 years	1,567	9.47%, see rank	7.18%	7.64%
75 to 84	990	5.98%, see rank	4.10%	4.25%
85 years and over	311	1.88%, see rank	1.90%	1.85%

US Census 2010 data

Total population: 16,729

Median Age (see rank)

Piatt County	42.60 years old
Illinois	36.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Piatt County	41.30 years old
Illinois	35.20 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Piatt County	43.80 years old
Illinois	37.90 years old
U.S.	38.50 years old

	Piatt County	% of the Total Population	Illinois	U.S.
Under 5 years	945	5.65%, see rank	6.51%	6.54%
5 to 9 years	1,119	6.69%, see rank	6.70%	6.59%
10 to 14 years	1,181	7.06%, see rank	6.85%	6.70%
15 to 19 years	1,115	6.67%, see rank	7.19%	7.14%
20 to 24 years	720	4.30%, see rank	6.85%	6.99%
25 to 34 years	1,758	10.51%, see rank	13.84%	13.30%
35 to 44 years	2,047	12.24%, see rank	13.45%	13.30%
45 to 54 years	2,845	17.01%, see rank	14.58%	14.58%
55 to 64 years	2,286	13.66%, see rank	11.48%	11.82%
65 to 74 years	1,478	8.83%, see rank	6.62%	7.03%
75 to 84	860	5.14%, see rank	4.09%	4.23%
85 years and over	375	2.24%, see rank	1.83%	1.78%

ACS 2008-2012 data

Total population: 16,679

Median Age (see rank)

Piatt County	42.80 years old
Illinois	36.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Piatt County	42.10 years old
Illinois	35.30 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Piatt County	43.70 years old
Illinois	38.00 years old
U.S.	38.50 years old

	Piatt County	% of the Total Population	Illinois	U.S.
Under 5 years	946	5.67%, see rank	6.50%	6.51%
5 to 9 years	1,110	6.66%, see rank	6.68%	6.57%
10 to 14 years	1,113	6.67%, see rank	6.82%	6.68%
15 to 19 years	1,123	6.73%, see rank	7.16%	7.09%
20 to 24 years	743	4.45%, see rank	6.88%	7.04%
25 to 34 years	1,727	10.35%, see rank	13.84%	13.32%
35 to 44 years	2,040	12.23%, see rank	13.49%	13.34%
45 to 54 years	2,821	16.91%, see rank	14.46%	14.44%
55 to 64 years	2,287	13.71%, see rank	11.52%	11.84%
65 to 74 years	1,507	9.04%, see rank	6.71%	7.12%
75 to 84	935	5.61%, see rank	4.11%	4.25%
85 years and over	327	1.96%, see rank	1.83%	1.78%

ACS 2006-2010 data

Total population: 16,708

Median Age (see rank)

Piatt County	42.40 years old
Illinois	36.20 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Piatt County	40.60 years old
Illinois	34.90 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Piatt County	43.30 years old
Illinois	37.60 years old
U.S.	38.10 years old

	Piatt County	% of the Total Population	Illinois	U.S.
Under 5 years	982	5.88%, see rank	6.63%	6.62%
5 to 9 years	1,110	6.64%, see rank	6.78%	6.62%
10 to 14 years	1,185	7.09%, see rank	6.94%	6.79%
15 to 19 years	1,098	6.57%, see rank	7.31%	7.28%
20 to 24 years	733	4.39%, see rank	6.86%	6.98%
25 to 34 years	1,745	10.44%, see rank	13.78%	13.22%
35 to 44 years	2,153	12.89%, see rank	13.96%	13.89%
45 to 54 years	2,857	17.10%, see rank	14.55%	14.57%
55 to 64 years	2,156	12.90%, see rank	10.89%	11.28%
65 to 74 years	1,423	8.52%, see rank	6.36%	6.74%
75 to 84	879	5.26%, see rank	4.17%	4.30%
85 years and over	387	2.32%, see rank	1.77%	1.70%

ACS 2005-2009 data

Total population: 16,499

Median Age (see rank)

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

Median Age, Male (see rank)

Piatt County	41.70 years old
Illinois	34.60 years old
U.S.	35.20 years old

Median Age, Female (see rank)

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

	Piatt County	% of the Total Population	Illinois	U.S.
Under 5 years	924	5.60%, see rank	6.97%	6.92%
5 to 9 years	1,042	6.32%, see rank	6.76%	6.59%
10 to 14 years	1,185	7.18%, see rank	6.96%	6.83%
15 to 19 years	1,045	6.33%, see rank	7.24%	7.15%
20 to 24 years	838	5.08%, see rank	7.08%	7.02%
25 to 34 years	1,592	9.65%, see rank	13.73%	13.42%
35 to 44 years	2,208	13.38%, see rank	14.23%	14.18%
45 to 54 years	2,888	17.50%, see rank	14.47%	14.48%
55 to 64 years	2,063	12.50%, see rank	10.43%	10.81%
65 to 74 years	1,391	8.43%, see rank	6.21%	6.50%
75 to 84	885	5.36%, see rank	4.17%	4.40%
85 years and over	438	2.65%, see rank	1.74%	1.71%

US Census 2000 data

Total population: 16,365

Median Age (see rank)

Piatt County	39.60 years old
Illinois	34.70 years old
U.S.	35.30 years old

Median Age, Male (see rank)

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

Median Age, Female (see rank)

Piatt County	40.40 years old
Illinois	36.00 years old
U.S.	36.50 years old

	Piatt County	% of the Total Population	Illinois	U.S.
Under 5 years	1,009	6.17%, see rank	7.06%	6.81%
5 to 9 years	1,139	6.96%, see rank	7.49%	7.30%
10 to 14 years	1,185	7.24%, see rank	7.29%	7.29%
15 to 19 years	1,178	7.20%, see rank	7.20%	7.18%
20 to 24 years	721	4.41%, see rank	6.85%	6.74%
25 to 34 years	1,752	10.71%, see rank	14.59%	14.18%
35 to 44 years	2,766	16.90%, see rank	15.97%	16.04%
45 to 54 years	2,377	14.52%, see rank	13.10%	13.39%
55 to 64 years	1,709	10.44%, see rank	8.38%	8.63%
65 to 74 years	1,287	7.86%, see rank	6.22%	6.54%
75 to 84	917	5.60%, see rank	4.31%	4.39%
85 years and over	325	1.99%, 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.