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Boston, MA Historical Age Data

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ACS 2010-2014 data

Total population: 639,594

Median Age (see rank)

Boston, MA	31.30 years old
Massachusetts	39.30 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Boston, MA	30.70 years old
Massachusetts	37.80 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Boston, MA	31.90 years old
Massachusetts	40.60 years old
U.S.	38.80 years old

	Boston, MA	% of the Total Population	Massachusetts	U.S.
Under 5 years	33,945	5.31%, see rank	5.49%	6.36%
5 to 9 years	27,886	4.36%, see rank	5.73%	6.51%
10 to 14 years	26,843	4.20%, see rank	6.03%	6.59%
15 to 19 years	49,709	7.77%, see rank	6.98%	6.85%
20 to 24 years	80,173	12.53%, see rank	7.25%	7.13%
25 to 34 years	140,988	22.04%, see rank	13.41%	13.47%
35 to 44 years	79,933	12.50%, see rank	12.88%	12.96%
45 to 54 years	72,464	11.33%, see rank	15.07%	14.09%
55 to 64 years	61,089	9.55%, see rank	12.77%	12.29%
65 to 74 years	35,752	5.59%, see rank	7.65%	7.64%
75 to 84	20,736	3.24%, see rank	4.49%	4.25%
85 years and over	10,076	1.58%, see rank	2.26%	1.85%

US Census 2010 data

Total population: 617,594

Median Age (see rank)

Boston, MA	30.80 years old
Massachusetts	39.10 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Boston, MA	30.30 years old
Massachusetts	37.70 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Boston, MA	31.30 years old
Massachusetts	40.30 years old
U.S.	38.50 years old

	Boston, MA	% of the Total Population	Massachusetts	U.S.
Under 5 years	32,420	5.25%, see rank	5.61%	6.54%
5 to 9 years	26,823	4.34%, see rank	5.89%	6.59%
10 to 14 years	26,523	4.29%, see rank	6.19%	6.70%
15 to 19 years	49,826	8.07%, see rank	7.07%	7.14%
20 to 24 years	88,129	14.27%, see rank	7.26%	6.99%
25 to 34 years	128,084	20.74%, see rank	12.91%	13.30%
35 to 44 years	77,341	12.52%, see rank	13.55%	13.30%
45 to 54 years	70,160	11.36%, see rank	15.46%	14.58%
55 to 64 years	56,051	9.08%, see rank	12.27%	11.82%
65 to 74 years	32,910	5.33%, see rank	6.97%	7.03%
75 to 84	20,267	3.28%, see rank	4.60%	4.23%
85 years and over	9,060	1.47%, see rank	2.22%	1.78%

ACS 2008-2012 data

Total population: 619,662

Median Age (see rank)

Boston, MA	30.90 years old
Massachusetts	39.10 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Boston, MA	30.40 years old
Massachusetts	37.70 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Boston, MA	31.50 years old
Massachusetts	40.30 years old
U.S.	38.50 years old

	Boston, MA	% of the Total Population	Massachusetts	U.S.
Under 5 years	33,038	5.33%, see rank	5.59%	6.51%
5 to 9 years	27,169	4.38%, see rank	5.91%	6.57%
10 to 14 years	26,065	4.21%, see rank	6.13%	6.68%
15 to 19 years	49,711	8.02%, see rank	7.12%	7.09%
20 to 24 years	85,331	13.77%, see rank	7.17%	7.04%
25 to 34 years	130,499	21.06%, see rank	13.00%	13.32%
35 to 44 years	77,824	12.56%, see rank	13.56%	13.34%
45 to 54 years	69,973	11.29%, see rank	15.32%	14.44%
55 to 64 years	56,865	9.18%, see rank	12.29%	11.84%
65 to 74 years	32,874	5.31%, see rank	7.07%	7.12%
75 to 84	20,670	3.34%, see rank	4.62%	4.25%
85 years and over	9,643	1.56%, see rank	2.21%	1.78%

ACS 2006-2010 data

Total population: 602,609

Median Age (see rank)

Boston, MA	30.90 years old
Massachusetts	38.70 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Boston, MA	30.30 years old
Massachusetts	37.30 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Boston, MA	31.60 years old
Massachusetts	39.90 years old
U.S.	38.10 years old

	Boston, MA	% of the Total Population	Massachusetts	U.S.
Under 5 years	31,090	5.16%, see rank	5.69%	6.62%
5 to 9 years	25,640	4.25%, see rank	6.01%	6.62%
10 to 14 years	27,418	4.55%, see rank	6.30%	6.79%
15 to 19 years	52,160	8.66%, see rank	7.24%	7.28%
20 to 24 years	81,265	13.49%, see rank	7.10%	6.98%
25 to 34 years	123,864	20.55%, see rank	12.77%	13.22%
35 to 44 years	78,385	13.01%, see rank	14.37%	13.89%
45 to 54 years	69,026	11.45%, see rank	15.30%	14.57%
55 to 64 years	53,423	8.87%, see rank	11.68%	11.28%
65 to 74 years	30,821	5.11%, see rank	6.65%	6.74%
75 to 84	20,478	3.40%, see rank	4.77%	4.30%
85 years and over	9,039	1.50%, see rank	2.12%	1.70%

ACS 2005-2009 data

Total population: 625,304

Median Age (see rank)

Boston, MA	31.90 years old
Massachusetts	38.50 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Boston, MA	31.10 years old
Massachusetts	37.20 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Boston, MA	32.70 years old
Massachusetts	39.80 years old
U.S.	37.90 years old

	Boston, MA	% of the Total Population	Massachusetts	U.S.
Under 5 years	35,503	5.68%, see rank	5.92%	6.92%
5 to 9 years	27,537	4.40%, see rank	5.97%	6.59%
10 to 14 years	28,773	4.60%, see rank	6.33%	6.83%
15 to 19 years	49,227	7.87%, see rank	7.18%	7.15%
20 to 24 years	56,829	9.09%, see rank	6.78%	7.02%
25 to 34 years	151,976	24.30%, see rank	12.90%	13.42%
35 to 44 years	85,520	13.68%, see rank	14.99%	14.18%
45 to 54 years	72,370	11.57%, see rank	15.32%	14.48%
55 to 64 years	54,077	8.65%, see rank	11.27%	10.81%
65 to 74 years	31,953	5.11%, see rank	6.53%	6.50%
75 to 84	21,774	3.48%, see rank	4.72%	4.40%
85 years and over	9,765	1.56%, see rank	2.11%	1.71%

US Census 2000 data

Total population: 589,141

Median Age (see rank)

Boston, MA	31.10 years old
Massachusetts	36.50 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Boston, MA	30.40 years old
Massachusetts	35.40 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Boston, MA	31.80 years old
Massachusetts	37.70 years old
U.S.	36.50 years old

	Boston, MA	% of the Total Population	Massachusetts	U.S.
Under 5 years	32,046	5.44%, see rank	6.26%	6.81%
5 to 9 years	33,721	5.72%, see rank	6.79%	7.30%
10 to 14 years	32,553	5.53%, see rank	6.79%	7.29%
15 to 19 years	43,631	7.41%, see rank	6.55%	7.18%
20 to 24 years	70,084	11.90%, see rank	6.37%	6.74%
25 to 34 years	124,762	21.18%, see rank	14.60%	14.18%
35 to 44 years	86,420	14.67%, see rank	16.74%	16.04%
45 to 54 years	63,554	10.79%, see rank	13.76%	13.39%
55 to 64 years	41,034	6.97%, see rank	8.61%	8.63%
65 to 74 years	31,154	5.29%, see rank	6.74%	6.54%
75 to 84	21,675	3.68%, see rank	4.97%	4.39%
85 years and over	8,507	1.44%, see rank	1.84%	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.