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Delaware County Historical Age Data

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ACS 2010-2014 data

Total population: 560,775

Median Age (see rank)

Delaware County	38.90 years old
Pennsylvania	40.40 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Delaware County	36.90 years old
Pennsylvania	38.90 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Delaware County	40.50 years old
Pennsylvania	41.90 years old
U.S.	38.80 years old

	Delaware County	% of the Total Population	Pennsylvania	U.S.
Under 5 years	33,841	6.03%, see rank	5.64%	6.36%
5 to 9 years	34,274	6.11%, see rank	5.89%	6.51%
10 to 14 years	36,254	6.46%, see rank	6.07%	6.59%
15 to 19 years	42,618	7.60%, see rank	6.84%	6.85%
20 to 24 years	39,557	7.05%, see rank	6.86%	7.13%
25 to 34 years	69,434	12.38%, see rank	12.38%	13.47%
35 to 44 years	67,595	12.05%, see rank	12.21%	12.96%
45 to 54 years	82,834	14.77%, see rank	14.70%	14.09%
55 to 64 years	72,391	12.91%, see rank	13.41%	12.29%
65 to 74 years	40,479	7.22%, see rank	8.32%	7.64%
75 to 84	27,311	4.87%, see rank	5.18%	4.25%
85 years and over	14,187	2.53%, see rank	2.50%	1.85%

US Census 2010 data

Total population: 558,979

Median Age (see rank)

Delaware County	38.70 years old
Pennsylvania	40.10 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Delaware County	36.80 years old
Pennsylvania	38.70 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Delaware County	40.40 years old
Pennsylvania	41.50 years old
U.S.	38.50 years old

	Delaware County	% of the Total Population	Pennsylvania	U.S.
Under 5 years	33,979	6.08%, see rank	5.74%	6.54%
5 to 9 years	34,749	6.22%, see rank	5.93%	6.59%
10 to 14 years	36,827	6.59%, see rank	6.23%	6.70%
15 to 19 years	44,245	7.92%, see rank	7.13%	7.14%
20 to 24 years	39,472	7.06%, see rank	6.88%	6.99%
25 to 34 years	66,578	11.91%, see rank	11.90%	13.30%
35 to 44 years	69,926	12.51%, see rank	12.72%	13.30%
45 to 54 years	86,101	15.40%, see rank	15.28%	14.58%
55 to 64 years	67,376	12.05%, see rank	12.77%	11.82%
65 to 74 years	37,323	6.68%, see rank	7.71%	7.03%
75 to 84	28,527	5.10%, see rank	5.31%	4.23%
85 years and over	13,876	2.48%, see rank	2.41%	1.78%

ACS 2008-2012 data

Total population: 558,874

Median Age (see rank)

Delaware County	38.80 years old
Pennsylvania	40.10 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Delaware County	36.90 years old
Pennsylvania	38.60 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Delaware County	40.30 years old
Pennsylvania	41.50 years old
U.S.	38.50 years old

	Delaware County	% of the Total Population	Pennsylvania	U.S.
Under 5 years	33,745	6.04%, see rank	5.71%	6.51%
5 to 9 years	35,260	6.31%, see rank	5.96%	6.57%
10 to 14 years	36,192	6.48%, see rank	6.19%	6.68%
15 to 19 years	44,073	7.89%, see rank	7.12%	7.09%
20 to 24 years	39,352	7.04%, see rank	6.83%	7.04%
25 to 34 years	67,124	12.01%, see rank	11.98%	13.32%
35 to 44 years	69,847	12.50%, see rank	12.73%	13.34%
45 to 54 years	85,352	15.27%, see rank	15.14%	14.44%
55 to 64 years	67,705	12.11%, see rank	12.80%	11.84%
65 to 74 years	37,747	6.75%, see rank	7.80%	7.12%
75 to 84	28,485	5.10%, see rank	5.32%	4.25%
85 years and over	13,992	2.50%, see rank	2.41%	1.78%

ACS 2006-2010 data

Total population: 556,468

Median Age (see rank)

Delaware County	38.50 years old
Pennsylvania	39.80 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Delaware County	36.70 years old
Pennsylvania	38.30 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Delaware County	40.00 years old
Pennsylvania	41.20 years old
U.S.	38.10 years old

	Delaware County	% of the Total Population	Pennsylvania	U.S.
Under 5 years	33,568	6.03%, see rank	5.77%	6.62%
5 to 9 years	35,323	6.35%, see rank	6.03%	6.62%
10 to 14 years	37,022	6.65%, see rank	6.36%	6.79%
15 to 19 years	44,706	8.03%, see rank	7.30%	7.28%
20 to 24 years	38,710	6.96%, see rank	6.69%	6.98%
25 to 34 years	65,414	11.76%, see rank	11.76%	13.22%
35 to 44 years	73,560	13.22%, see rank	13.40%	13.89%
45 to 54 years	86,007	15.46%, see rank	15.32%	14.57%
55 to 64 years	62,794	11.28%, see rank	12.10%	11.28%
65 to 74 years	36,126	6.49%, see rank	7.46%	6.74%
75 to 84	30,157	5.42%, see rank	5.55%	4.30%
85 years and over	13,081	2.35%, see rank	2.27%	1.70%

ACS 2005-2009 data

Total population: 555,018

Median Age (see rank)

Delaware County	38.30 years old
Pennsylvania	39.60 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Delaware County	36.40 years old
Pennsylvania	38.00 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Delaware County	39.90 years old
Pennsylvania	41.00 years old
U.S.	37.90 years old

	Delaware County	% of the Total Population	Pennsylvania	U.S.
Under 5 years	34,365	6.19%, see rank	5.91%	6.92%
5 to 9 years	34,435	6.20%, see rank	5.95%	6.59%
10 to 14 years	37,438	6.75%, see rank	6.41%	6.83%
15 to 19 years	44,626	8.04%, see rank	7.24%	7.15%
20 to 24 years	38,360	6.91%, see rank	6.49%	7.02%
25 to 34 years	66,268	11.94%, see rank	12.00%	13.42%
35 to 44 years	75,512	13.61%, see rank	13.81%	14.18%
45 to 54 years	85,373	15.38%, see rank	15.31%	14.48%
55 to 64 years	59,308	10.69%, see rank	11.60%	10.81%
65 to 74 years	35,487	6.39%, see rank	7.32%	6.50%
75 to 84	30,938	5.57%, see rank	5.69%	4.40%
85 years and over	12,908	2.33%, see rank	2.26%	1.71%

US Census 2000 data

Total population: 550,864

Median Age (see rank)

Delaware County	37.40 years old
Pennsylvania	38.00 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Delaware County	35.70 years old
Pennsylvania	36.50 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Delaware County	38.90 years old
Pennsylvania	39.40 years old
U.S.	36.50 years old

	Delaware County	% of the Total Population	Pennsylvania	U.S.
Under 5 years	34,394	6.24%, see rank	5.93%	6.81%
5 to 9 years	38,774	7.04%, see rank	6.74%	7.30%
10 to 14 years	40,062	7.27%, see rank	7.03%	7.29%
15 to 19 years	40,349	7.32%, see rank	6.93%	7.18%
20 to 24 years	32,347	5.87%, see rank	6.08%	6.74%
25 to 34 years	69,089	12.54%, see rank	12.71%	14.18%
35 to 44 years	89,511	16.25%, see rank	15.86%	16.04%
45 to 54 years	74,079	13.45%, see rank	13.88%	13.39%
55 to 64 years	46,590	8.46%, see rank	9.21%	8.63%
65 to 74 years	42,053	7.63%, see rank	7.89%	6.54%
75 to 84	32,748	5.94%, see rank	5.80%	4.39%
85 years and over	10,868	1.97%, see rank	1.93%	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.