Spearfish, SD Historical Age Data
ACS 2010-2014 data
Total population: 10,836
Median Age (
see rank)
Spearfish, SD | 33.50 years old |
South Dakota | 36.80 years old |
U.S. | 37.40 years old |
Median Age, Male (
see rank)
Spearfish, SD | 31.70 years old |
South Dakota | 35.60 years old |
U.S. | 36.10 years old |
Median Age, Female (
see rank)
Spearfish, SD | 37.00 years old |
South Dakota | 38.20 years old |
U.S. | 38.80 years old |
| Spearfish, SD | % of the Total Population | South Dakota | U.S. |
Under 5 years | 633 | 5.84%, see rank | 7.10% | 6.36% |
5 to 9 years | 526 | 4.85%, see rank | 6.91% | 6.51% |
10 to 14 years | 478 | 4.41%, see rank | 6.64% | 6.59% |
15 to 19 years | 1,054 | 9.73%, see rank | 6.95% | 6.85% |
20 to 24 years | 1,522 | 14.05%, see rank | 7.15% | 7.13% |
25 to 34 years | 1,322 | 12.20%, see rank | 13.12% | 13.47% |
35 to 44 years | 1,000 | 9.23%, see rank | 11.34% | 12.96% |
45 to 54 years | 1,092 | 10.08%, see rank | 13.41% | 14.09% |
55 to 64 years | 1,432 | 13.22%, see rank | 12.72% | 12.29% |
65 to 74 years | 770 | 7.11%, see rank | 7.51% | 7.64% |
75 to 84 | 552 | 5.09%, see rank | 4.78% | 4.25% |
85 years and over | 455 | 4.20%, see rank | 2.36% | 1.85% |
US Census 2010 data
Total population: 10,494
Median Age (
see rank)
Spearfish, SD | 33.20 years old |
South Dakota | 36.90 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Spearfish, SD | 31.10 years old |
South Dakota | 35.60 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Spearfish, SD | 35.40 years old |
South Dakota | 38.20 years old |
U.S. | 38.50 years old |
| Spearfish, SD | % of the Total Population | South Dakota | U.S. |
Under 5 years | 672 | 6.40%, see rank | 7.32% | 6.54% |
5 to 9 years | 507 | 4.83%, see rank | 6.82% | 6.59% |
10 to 14 years | 494 | 4.71%, see rank | 6.63% | 6.70% |
15 to 19 years | 890 | 8.48%, see rank | 7.08% | 7.14% |
20 to 24 years | 1,510 | 14.39%, see rank | 7.07% | 6.99% |
25 to 34 years | 1,390 | 13.25%, see rank | 12.95% | 13.30% |
35 to 44 years | 950 | 9.05%, see rank | 11.44% | 13.30% |
45 to 54 years | 1,131 | 10.78%, see rank | 14.36% | 14.58% |
55 to 64 years | 1,097 | 10.45%, see rank | 12.01% | 11.82% |
65 to 74 years | 731 | 6.97%, see rank | 7.08% | 7.03% |
75 to 84 | 676 | 6.44%, see rank | 4.88% | 4.23% |
85 years and over | 446 | 4.25%, see rank | 2.36% | 1.78% |
ACS 2008-2012 data
Total population: 10,470
Median Age (
see rank)
Spearfish, SD | 35.50 years old |
South Dakota | 37.10 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Spearfish, SD | 31.50 years old |
South Dakota | 35.70 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Spearfish, SD | 41.30 years old |
South Dakota | 38.50 years old |
U.S. | 38.50 years old |
| Spearfish, SD | % of the Total Population | South Dakota | U.S. |
Under 5 years | 640 | 6.11%, see rank | 7.14% | 6.51% |
5 to 9 years | 314 | 3.00%, see rank | 6.69% | 6.57% |
10 to 14 years | 439 | 4.19%, see rank | 6.73% | 6.68% |
15 to 19 years | 1,049 | 10.02%, see rank | 7.20% | 7.09% |
20 to 24 years | 1,519 | 14.51%, see rank | 7.06% | 7.04% |
25 to 34 years | 1,219 | 11.64%, see rank | 12.84% | 13.32% |
35 to 44 years | 1,007 | 9.62%, see rank | 11.55% | 13.34% |
45 to 54 years | 1,089 | 10.40%, see rank | 14.25% | 14.44% |
55 to 64 years | 1,261 | 12.04%, see rank | 12.14% | 11.84% |
65 to 74 years | 849 | 8.11%, see rank | 7.11% | 7.12% |
75 to 84 | 635 | 6.06%, see rank | 4.91% | 4.25% |
85 years and over | 449 | 4.29%, see rank | 2.37% | 1.78% |
ACS 2006-2010 data
Total population: 10,195
Median Age (
see rank)
Spearfish, SD | 33.80 years old |
South Dakota | 37.20 years old |
U.S. | 36.90 years old |
Median Age, Male (
see rank)
Spearfish, SD | 32.40 years old |
South Dakota | 35.80 years old |
U.S. | 35.60 years old |
Median Age, Female (
see rank)
Spearfish, SD | 36.80 years old |
South Dakota | 38.50 years old |
U.S. | 38.10 years old |
| Spearfish, SD | % of the Total Population | South Dakota | U.S. |
Under 5 years | 666 | 6.53%, see rank | 7.07% | 6.62% |
5 to 9 years | 352 | 3.45%, see rank | 6.54% | 6.62% |
10 to 14 years | 564 | 5.53%, see rank | 7.00% | 6.79% |
15 to 19 years | 931 | 9.13%, see rank | 7.35% | 7.28% |
20 to 24 years | 1,414 | 13.87%, see rank | 7.21% | 6.98% |
25 to 34 years | 1,282 | 12.57%, see rank | 12.43% | 13.22% |
35 to 44 years | 983 | 9.64%, see rank | 12.10% | 13.89% |
45 to 54 years | 1,251 | 12.27%, see rank | 14.72% | 14.57% |
55 to 64 years | 985 | 9.66%, see rank | 11.32% | 11.28% |
65 to 74 years | 771 | 7.56%, see rank | 6.87% | 6.74% |
75 to 84 | 737 | 7.23%, see rank | 5.07% | 4.30% |
85 years and over | 259 | 2.54%, see rank | 2.32% | 1.70% |
ACS 2005-2009 data
Total population: 9,819
Median Age (
see rank)
Spearfish, SD | 31.20 years old |
South Dakota | 37.00 years old |
U.S. | 36.50 years old |
Median Age, Male (
see rank)
Spearfish, SD | 29.80 years old |
South Dakota | 35.50 years old |
U.S. | 35.20 years old |
Median Age, Female (
see rank)
Spearfish, SD | 33.40 years old |
South Dakota | 38.40 years old |
U.S. | 37.90 years old |
| Spearfish, SD | % of the Total Population | South Dakota | U.S. |
Under 5 years | 646 | 6.58%, see rank | 7.07% | 6.92% |
5 to 9 years | 386 | 3.93%, see rank | 6.43% | 6.59% |
10 to 14 years | 425 | 4.33%, see rank | 6.83% | 6.83% |
15 to 19 years | 932 | 9.49%, see rank | 7.56% | 7.15% |
20 to 24 years | 1,867 | 19.01%, see rank | 7.61% | 7.02% |
25 to 34 years | 974 | 9.92%, see rank | 12.29% | 13.42% |
35 to 44 years | 846 | 8.62%, see rank | 12.31% | 14.18% |
45 to 54 years | 1,309 | 13.33%, see rank | 14.58% | 14.48% |
55 to 64 years | 739 | 7.53%, see rank | 10.99% | 10.81% |
65 to 74 years | 659 | 6.71%, see rank | 6.80% | 6.50% |
75 to 84 | 754 | 7.68%, see rank | 5.20% | 4.40% |
85 years and over | 282 | 2.87%, see rank | 2.35% | 1.71% |
US Census 2000 data
Total population: 8,606
Median Age (
see rank)
Spearfish, SD | 31.70 years old |
South Dakota | 35.60 years old |
U.S. | 35.30 years old |
Median Age, Male (
see rank)
Spearfish, SD | 29.80 years old |
South Dakota | 34.40 years old |
U.S. | 34.00 years old |
Median Age, Female (
see rank)
Spearfish, SD | 33.90 years old |
South Dakota | 36.70 years old |
U.S. | 36.50 years old |
| Spearfish, SD | % of the Total Population | South Dakota | U.S. |
Under 5 years | 421 | 4.89%, see rank | 6.77% | 6.81% |
5 to 9 years | 486 | 5.65%, see rank | 7.22% | 7.30% |
10 to 14 years | 515 | 5.98%, see rank | 7.88% | 7.29% |
15 to 19 years | 950 | 11.04%, see rank | 8.27% | 7.18% |
20 to 24 years | 1,222 | 14.20%, see rank | 7.00% | 6.74% |
25 to 34 years | 968 | 11.25%, see rank | 12.06% | 14.18% |
35 to 44 years | 1,036 | 12.04%, see rank | 15.29% | 16.04% |
45 to 54 years | 954 | 11.09%, see rank | 12.94% | 13.39% |
55 to 64 years | 583 | 6.77%, see rank | 8.26% | 8.63% |
65 to 74 years | 590 | 6.86%, see rank | 7.04% | 6.54% |
75 to 84 | 592 | 6.88%, see rank | 5.16% | 4.39% |
85 years and over | 289 | 3.36%, 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.