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Spearfish Micro Area Historical Age Data

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ACS 2010-2014 data

Total population: 24,478

Median Age (see rank)

Spearfish Area	41.10 years old
South Dakota	36.80 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Spearfish Area	39.90 years old
South Dakota	35.60 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Spearfish Area	42.50 years old
South Dakota	38.20 years old
U.S.	38.80 years old

	Spearfish Area	% of the Total Population	South Dakota	U.S.
Under 5 years	1,233	5.04%, see rank	7.10%	6.36%
5 to 9 years	1,253	5.12%, see rank	6.91%	6.51%
10 to 14 years	1,278	5.22%, see rank	6.64%	6.59%
15 to 19 years	1,879	7.68%, see rank	6.95%	6.85%
20 to 24 years	2,238	9.14%, see rank	7.15%	7.13%
25 to 34 years	2,775	11.34%, see rank	13.12%	13.47%
35 to 44 years	2,469	10.09%, see rank	11.34%	12.96%
45 to 54 years	3,287	13.43%, see rank	13.41%	14.09%
55 to 64 years	3,798	15.52%, see rank	12.72%	12.29%
65 to 74 years	2,199	8.98%, see rank	7.51%	7.64%
75 to 84	1,362	5.56%, see rank	4.78%	4.25%
85 years and over	707	2.89%, see rank	2.36%	1.85%

US Census 2010 data

Total population: 24,097

Median Age (see rank)

Spearfish Area	41.00 years old
South Dakota	36.90 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Spearfish Area	39.40 years old
South Dakota	35.60 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Spearfish Area	42.60 years old
South Dakota	38.20 years old
U.S.	38.50 years old

	Spearfish Area	% of the Total Population	South Dakota	U.S.
Under 5 years	1,375	5.71%, see rank	7.32%	6.54%
5 to 9 years	1,246	5.17%, see rank	6.82%	6.59%
10 to 14 years	1,253	5.20%, see rank	6.63%	6.70%
15 to 19 years	1,844	7.65%, see rank	7.08%	7.14%
20 to 24 years	2,208	9.16%, see rank	7.07%	6.99%
25 to 34 years	2,754	11.43%, see rank	12.95%	13.30%
35 to 44 years	2,397	9.95%, see rank	11.44%	13.30%
45 to 54 years	3,510	14.57%, see rank	14.36%	14.58%
55 to 64 years	3,517	14.60%, see rank	12.01%	11.82%
65 to 74 years	1,992	8.27%, see rank	7.08%	7.03%
75 to 84	1,338	5.55%, see rank	4.88%	4.23%
85 years and over	663	2.75%, see rank	2.36%	1.78%

ACS 2008-2012 data

Total population: 24,063

Median Age (see rank)

Spearfish Area	41.20 years old
South Dakota	37.10 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Spearfish Area	39.20 years old
South Dakota	35.70 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Spearfish Area	43.30 years old
South Dakota	38.50 years old
U.S.	38.50 years old

	Spearfish Area	% of the Total Population	South Dakota	U.S.
Under 5 years	1,283	5.33%, see rank	7.14%	6.51%
5 to 9 years	1,086	4.51%, see rank	6.69%	6.57%
10 to 14 years	1,416	5.88%, see rank	6.73%	6.68%
15 to 19 years	1,922	7.99%, see rank	7.20%	7.09%
20 to 24 years	2,182	9.07%, see rank	7.06%	7.04%
25 to 34 years	2,635	10.95%, see rank	12.84%	13.32%
35 to 44 years	2,505	10.41%, see rank	11.55%	13.34%
45 to 54 years	3,499	14.54%, see rank	14.25%	14.44%
55 to 64 years	3,467	14.41%, see rank	12.14%	11.84%
65 to 74 years	1,993	8.28%, see rank	7.11%	7.12%
75 to 84	1,360	5.65%, see rank	4.91%	4.25%
85 years and over	715	2.97%, see rank	2.37%	1.78%

ACS 2006-2010 data

Total population: 23,670

Median Age (see rank)

Spearfish Area	39.40 years old
South Dakota	37.20 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Spearfish Area	36.80 years old
South Dakota	35.80 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Spearfish Area	42.40 years old
South Dakota	38.50 years old
U.S.	38.10 years old

	Spearfish Area	% of the Total Population	South Dakota	U.S.
Under 5 years	1,295	5.47%, see rank	7.07%	6.62%
5 to 9 years	988	4.17%, see rank	6.54%	6.62%
10 to 14 years	1,472	6.22%, see rank	7.00%	6.79%
15 to 19 years	2,236	9.45%, see rank	7.35%	7.28%
20 to 24 years	2,295	9.70%, see rank	7.21%	6.98%
25 to 34 years	2,458	10.38%, see rank	12.43%	13.22%
35 to 44 years	2,435	10.29%, see rank	12.10%	13.89%
45 to 54 years	3,592	15.18%, see rank	14.72%	14.57%
55 to 64 years	3,079	13.01%, see rank	11.32%	11.28%
65 to 74 years	1,869	7.90%, see rank	6.87%	6.74%
75 to 84	1,489	6.29%, see rank	5.07%	4.30%
85 years and over	462	1.95%, see rank	2.32%	1.70%

ACS 2005-2009 data

Total population: 23,159

Median Age (see rank)

Spearfish Area	38.70 years old
South Dakota	37.00 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Spearfish Area	36.60 years old
South Dakota	35.50 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Spearfish Area	41.30 years old
South Dakota	38.40 years old
U.S.	37.90 years old

	Spearfish Area	% of the Total Population	South Dakota	U.S.
Under 5 years	1,309	5.65%, see rank	7.07%	6.92%
5 to 9 years	1,096	4.73%, see rank	6.43%	6.59%
10 to 14 years	1,297	5.60%, see rank	6.83%	6.83%
15 to 19 years	2,225	9.61%, see rank	7.56%	7.15%
20 to 24 years	2,839	12.26%, see rank	7.61%	7.02%
25 to 34 years	1,943	8.39%, see rank	12.29%	13.42%
35 to 44 years	2,450	10.58%, see rank	12.31%	14.18%
45 to 54 years	3,597	15.53%, see rank	14.58%	14.48%
55 to 64 years	2,837	12.25%, see rank	10.99%	10.81%
65 to 74 years	1,701	7.34%, see rank	6.80%	6.50%
75 to 84	1,422	6.14%, see rank	5.20%	4.40%
85 years and over	443	1.91%, see rank	2.35%	1.71%

* 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.