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Duncan, OK Historical Age Data

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ACS 2010-2014 data

Total population: 23,364

Median Age (see rank)

Duncan, OK	38.70 years old
Oklahoma	36.20 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Duncan, OK	36.50 years old
Oklahoma	34.90 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Duncan, OK	40.10 years old
Oklahoma	37.60 years old
U.S.	38.80 years old

	Duncan, OK	% of the Total Population	Oklahoma	U.S.
Under 5 years	1,581	6.77%, see rank	6.94%	6.36%
5 to 9 years	1,479	6.33%, see rank	6.94%	6.51%
10 to 14 years	1,775	7.60%, see rank	6.80%	6.59%
15 to 19 years	1,263	5.41%, see rank	6.78%	6.85%
20 to 24 years	1,492	6.39%, see rank	7.37%	7.13%
25 to 34 years	2,942	12.59%, see rank	13.63%	13.47%
35 to 44 years	2,749	11.77%, see rank	12.23%	12.96%
45 to 54 years	2,897	12.40%, see rank	13.26%	14.09%
55 to 64 years	3,004	12.86%, see rank	12.07%	12.29%
65 to 74 years	2,115	9.05%, see rank	7.89%	7.64%
75 to 84	1,478	6.33%, see rank	4.40%	4.25%
85 years and over	589	2.52%, see rank	1.69%	1.85%

US Census 2010 data

Total population: 23,431

Median Age (see rank)

Duncan, OK	39.20 years old
Oklahoma	36.20 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Duncan, OK	37.30 years old
Oklahoma	34.90 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Duncan, OK	41.30 years old
Oklahoma	37.70 years old
U.S.	38.50 years old

	Duncan, OK	% of the Total Population	Oklahoma	U.S.
Under 5 years	1,673	7.14%, see rank	7.04%	6.54%
5 to 9 years	1,577	6.73%, see rank	6.91%	6.59%
10 to 14 years	1,447	6.18%, see rank	6.76%	6.70%
15 to 19 years	1,434	6.12%, see rank	7.05%	7.14%
20 to 24 years	1,380	5.89%, see rank	7.18%	6.99%
25 to 34 years	3,093	13.20%, see rank	13.51%	13.30%
35 to 44 years	2,552	10.89%, see rank	12.29%	13.30%
45 to 54 years	3,217	13.73%, see rank	14.01%	14.58%
55 to 64 years	2,858	12.20%, see rank	11.74%	11.82%
65 to 74 years	2,016	8.60%, see rank	7.48%	7.03%
75 to 84	1,544	6.59%, see rank	4.38%	4.23%
85 years and over	640	2.73%, see rank	1.65%	1.78%

ACS 2008-2012 data

Total population: 23,332

Median Age (see rank)

Duncan, OK	39.10 years old
Oklahoma	36.30 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Duncan, OK	37.70 years old
Oklahoma	34.90 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Duncan, OK	40.10 years old
Oklahoma	37.70 years old
U.S.	38.50 years old

	Duncan, OK	% of the Total Population	Oklahoma	U.S.
Under 5 years	1,624	6.96%, see rank	6.97%	6.51%
5 to 9 years	1,503	6.44%, see rank	6.90%	6.57%
10 to 14 years	1,815	7.78%, see rank	6.77%	6.68%
15 to 19 years	1,218	5.22%, see rank	7.03%	7.09%
20 to 24 years	1,354	5.80%, see rank	7.29%	7.04%
25 to 34 years	2,877	12.33%, see rank	13.43%	13.32%
35 to 44 years	2,854	12.23%, see rank	12.37%	13.34%
45 to 54 years	2,868	12.29%, see rank	13.86%	14.44%
55 to 64 years	2,962	12.70%, see rank	11.78%	11.84%
65 to 74 years	2,056	8.81%, see rank	7.55%	7.12%
75 to 84	1,539	6.60%, see rank	4.37%	4.25%
85 years and over	662	2.84%, see rank	1.67%	1.78%

ACS 2006-2010 data

Total population: 23,157

Median Age (see rank)

Duncan, OK	39.60 years old
Oklahoma	36.30 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Duncan, OK	37.70 years old
Oklahoma	34.90 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Duncan, OK	40.80 years old
Oklahoma	37.70 years old
U.S.	38.10 years old

	Duncan, OK	% of the Total Population	Oklahoma	U.S.
Under 5 years	1,854	8.01%, see rank	6.98%	6.62%
5 to 9 years	1,722	7.44%, see rank	6.87%	6.62%
10 to 14 years	1,469	6.34%, see rank	6.75%	6.79%
15 to 19 years	1,234	5.33%, see rank	7.25%	7.28%
20 to 24 years	1,218	5.26%, see rank	7.37%	6.98%
25 to 34 years	2,808	12.13%, see rank	13.16%	13.22%
35 to 44 years	2,998	12.95%, see rank	12.72%	13.89%
45 to 54 years	3,079	13.30%, see rank	14.17%	14.57%
55 to 64 years	2,746	11.86%, see rank	11.37%	11.28%
65 to 74 years	1,929	8.33%, see rank	7.31%	6.74%
75 to 84	1,365	5.89%, see rank	4.42%	4.30%
85 years and over	735	3.17%, see rank	1.64%	1.70%

ACS 2005-2009 data

Total population: 22,354

Median Age (see rank)

Duncan, OK	39.00 years old
Oklahoma	35.90 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Duncan, OK	36.40 years old
Oklahoma	34.20 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Duncan, OK	41.40 years old
Oklahoma	37.60 years old
U.S.	37.90 years old

	Duncan, OK	% of the Total Population	Oklahoma	U.S.
Under 5 years	1,885	8.43%, see rank	7.21%	6.92%
5 to 9 years	1,482	6.63%, see rank	6.81%	6.59%
10 to 14 years	1,342	6.00%, see rank	6.69%	6.83%
15 to 19 years	1,237	5.53%, see rank	7.19%	7.15%
20 to 24 years	1,555	6.96%, see rank	7.73%	7.02%
25 to 34 years	2,774	12.41%, see rank	13.27%	13.42%
35 to 44 years	2,662	11.91%, see rank	12.86%	14.18%
45 to 54 years	3,154	14.11%, see rank	13.99%	14.48%
55 to 64 years	2,457	10.99%, see rank	10.93%	10.81%
65 to 74 years	1,699	7.60%, see rank	7.05%	6.50%
75 to 84	1,322	5.91%, see rank	4.59%	4.40%
85 years and over	785	3.51%, see rank	1.70%	1.71%

US Census 2000 data

Total population: 22,505

Median Age (see rank)

Duncan, OK	40.30 years old
Oklahoma	35.50 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Duncan, OK	38.10 years old
Oklahoma	33.90 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Duncan, OK	42.10 years old
Oklahoma	36.90 years old
U.S.	36.50 years old

	Duncan, OK	% of the Total Population	Oklahoma	U.S.
Under 5 years	1,494	6.64%, see rank	6.85%	6.81%
5 to 9 years	1,433	6.37%, see rank	7.09%	7.30%
10 to 14 years	1,545	6.87%, see rank	7.30%	7.29%
15 to 19 years	1,519	6.75%, see rank	7.81%	7.18%
20 to 24 years	1,296	5.76%, see rank	7.16%	6.74%
25 to 34 years	2,401	10.67%, see rank	13.09%	14.18%
35 to 44 years	3,184	14.15%, see rank	15.17%	16.04%
45 to 54 years	2,968	13.19%, see rank	13.15%	13.39%
55 to 64 years	2,124	9.44%, see rank	9.17%	8.63%
65 to 74 years	2,291	10.18%, see rank	7.03%	6.54%
75 to 84	1,634	7.26%, see rank	4.53%	4.39%
85 years and over	616	2.74%, see rank	1.66%	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.