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Jefferson, SD Historical Age Data

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ACS 2010-2014 data

Total population: 570

Median Age (see rank)

Jefferson, SD	38.90 years old
South Dakota	36.80 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Jefferson, SD	38.60 years old
South Dakota	35.60 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Jefferson, SD	39.60 years old
South Dakota	38.20 years old
U.S.	38.80 years old

	Jefferson, SD	% of the Total Population	South Dakota	U.S.
Under 5 years	34	5.96%, see rank	7.10%	6.36%
5 to 9 years	45	7.89%, see rank	6.91%	6.51%
10 to 14 years	42	7.37%, see rank	6.64%	6.59%
15 to 19 years	36	6.32%, see rank	6.95%	6.85%
20 to 24 years	16	2.81%, see rank	7.15%	7.13%
25 to 34 years	78	13.68%, see rank	13.12%	13.47%
35 to 44 years	59	10.35%, see rank	11.34%	12.96%
45 to 54 years	94	16.49%, see rank	13.41%	14.09%
55 to 64 years	95	16.67%, see rank	12.72%	12.29%
65 to 74 years	30	5.26%, see rank	7.51%	7.64%
75 to 84	19	3.33%, see rank	4.78%	4.25%
85 years and over	22	3.86%, see rank	2.36%	1.85%

US Census 2010 data

Total population: 547

Median Age (see rank)

Jefferson, SD	39.20 years old
South Dakota	36.90 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Jefferson, SD	40.80 years old
South Dakota	35.60 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Jefferson, SD	37.80 years old
South Dakota	38.20 years old
U.S.	38.50 years old

	Jefferson, SD	% of the Total Population	South Dakota	U.S.
Under 5 years	29	5.30%, see rank	7.32%	6.54%
5 to 9 years	28	5.12%, see rank	6.82%	6.59%
10 to 14 years	43	7.86%, see rank	6.63%	6.70%
15 to 19 years	42	7.68%, see rank	7.08%	7.14%
20 to 24 years	29	5.30%, see rank	7.07%	6.99%
25 to 34 years	71	12.98%, see rank	12.95%	13.30%
35 to 44 years	79	14.44%, see rank	11.44%	13.30%
45 to 54 years	72	13.16%, see rank	14.36%	14.58%
55 to 64 years	83	15.17%, see rank	12.01%	11.82%
65 to 74 years	38	6.95%, see rank	7.08%	7.03%
75 to 84	21	3.84%, see rank	4.88%	4.23%
85 years and over	12	2.19%, see rank	2.36%	1.78%

ACS 2008-2012 data

Total population: 624

Median Age (see rank)

Jefferson, SD	37.50 years old
South Dakota	37.10 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Jefferson, SD	39.20 years old
South Dakota	35.70 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Jefferson, SD	32.80 years old
South Dakota	38.50 years old
U.S.	38.50 years old

	Jefferson, SD	% of the Total Population	South Dakota	U.S.
Under 5 years	53	8.49%, see rank	7.14%	6.51%
5 to 9 years	37	5.93%, see rank	6.69%	6.57%
10 to 14 years	42	6.73%, see rank	6.73%	6.68%
15 to 19 years	80	12.82%, see rank	7.20%	7.09%
20 to 24 years	21	3.37%, see rank	7.06%	7.04%
25 to 34 years	58	9.29%, see rank	12.84%	13.32%
35 to 44 years	75	12.02%, see rank	11.55%	13.34%
45 to 54 years	126	20.19%, see rank	14.25%	14.44%
55 to 64 years	63	10.10%, see rank	12.14%	11.84%
65 to 74 years	39	6.25%, see rank	7.11%	7.12%
75 to 84	15	2.40%, see rank	4.91%	4.25%
85 years and over	15	2.40%, see rank	2.37%	1.78%

ACS 2006-2010 data

Total population: 602

Median Age (see rank)

Jefferson, SD	38.60 years old
South Dakota	37.20 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Jefferson, SD	38.70 years old
South Dakota	35.80 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Jefferson, SD	38.00 years old
South Dakota	38.50 years old
U.S.	38.10 years old

	Jefferson, SD	% of the Total Population	South Dakota	U.S.
Under 5 years	38	6.31%, see rank	7.07%	6.62%
5 to 9 years	40	6.64%, see rank	6.54%	6.62%
10 to 14 years	41	6.81%, see rank	7.00%	6.79%
15 to 19 years	50	8.31%, see rank	7.35%	7.28%
20 to 24 years	19	3.16%, see rank	7.21%	6.98%
25 to 34 years	77	12.79%, see rank	12.43%	13.22%
35 to 44 years	83	13.79%, see rank	12.10%	13.89%
45 to 54 years	112	18.60%, see rank	14.72%	14.57%
55 to 64 years	68	11.30%, see rank	11.32%	11.28%
65 to 74 years	37	6.15%, see rank	6.87%	6.74%
75 to 84	26	4.32%, see rank	5.07%	4.30%
85 years and over	11	1.83%, see rank	2.32%	1.70%

ACS 2005-2009 data

Total population: 604

Median Age (see rank)

Jefferson, SD	38.30 years old
South Dakota	37.00 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Jefferson, SD	38.10 years old
South Dakota	35.50 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Jefferson, SD	40.30 years old
South Dakota	38.40 years old
U.S.	37.90 years old

	Jefferson, SD	% of the Total Population	South Dakota	U.S.
Under 5 years	38	6.29%, see rank	7.07%	6.92%
5 to 9 years	31	5.13%, see rank	6.43%	6.59%
10 to 14 years	48	7.95%, see rank	6.83%	6.83%
15 to 19 years	65	10.76%, see rank	7.56%	7.15%
20 to 24 years	22	3.64%, see rank	7.61%	7.02%
25 to 34 years	66	10.93%, see rank	12.29%	13.42%
35 to 44 years	77	12.75%, see rank	12.31%	14.18%
45 to 54 years	106	17.55%, see rank	14.58%	14.48%
55 to 64 years	69	11.42%, see rank	10.99%	10.81%
65 to 74 years	50	8.28%, see rank	6.80%	6.50%
75 to 84	18	2.98%, see rank	5.20%	4.40%
85 years and over	14	2.32%, see rank	2.35%	1.71%

US Census 2000 data

Total population: 586

Median Age (see rank)

Jefferson, SD	33.10 years old
South Dakota	35.60 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Jefferson, SD	32.50 years old
South Dakota	34.40 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Jefferson, SD	33.80 years old
South Dakota	36.70 years old
U.S.	36.50 years old

	Jefferson, SD	% of the Total Population	South Dakota	U.S.
Under 5 years	43	7.34%, see rank	6.77%	6.81%
5 to 9 years	59	10.07%, see rank	7.22%	7.30%
10 to 14 years	50	8.53%, see rank	7.88%	7.29%
15 to 19 years	35	5.97%, see rank	8.27%	7.18%
20 to 24 years	27	4.61%, see rank	7.00%	6.74%
25 to 34 years	98	16.72%, see rank	12.06%	14.18%
35 to 44 years	79	13.48%, see rank	15.29%	16.04%
45 to 54 years	92	15.70%, see rank	12.94%	13.39%
55 to 64 years	37	6.31%, see rank	8.26%	8.63%
65 to 74 years	30	5.12%, see rank	7.04%	6.54%
75 to 84	32	5.46%, see rank	5.16%	4.39%
85 years and over	4	0.68%, see rank	2.13%	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.