Demographic Characteristics of Lake County, South dakota
Total Population: 11,276
Lake County, South dakota Age/Gender Statistics
 Male Population: 5,632 (49.95%) |
 Female Population: 5,644 (50.05%) |
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| Under 5 years | 621 | 45 to 54 years: | 1,478 |
| 5 to 9 years: | 668 | 55 to 59 years: | 473 |
| 10 to 14 years: | 790 | 60 to 64 years: | 467 |
| 15 to 19 years: | 1,245 | 65 to 74 years: | 870 |
| 20 to 24 years: | 1,048 | 75 to 84 years: | 693 |
| 25 to 34 years: | 1,043 | 85 years and over: | 280 |
| 35 to 44 years: | 1,600 | ||
| Median Age: 36.5 | |||
Lake County, South dakota Racial Statistics
One Race
11,219
White
11,023
Black or African American
23
American Indian and Alaska Native
74
Asian
61
Asian Indian
3
Chinese
19
Filipino
9
Japanese
10
Korean
13
Vietnamese
0
Other Asian
7
Native Hawaiian and Other Pacific Islander
1
Native Hawaiian
0
Guamanian or Chamorro
0
Samoan
1
Other Pacific Islander
0
Some other race
37
Two or more races
57
Lake County, South dakota Hispanic Population Statistics
| Total Hispanic or Latino Population: 89 | |||
| Mexican | Puerto Rican | Cuban | Other |
| 66 | 2 | 2 | 19 |
Lake County, South dakota Relationship Statistics
| In households: 10,544 (93.51%) | In group quarters: 732 (6.49%) | ||
| Householder | 4,372 | Institutionalized | 141 |
| Spouse | 2,446 | Noninstitutionalized | 591 |
| Child | 3,082 | ||
| Own child under 18 years | 2,574 | ||
| Other relatives | 142 | ||
| Under 18 years | 60 | ||
| Nonrelatives | 502 | ||
| Unmarried partner | 181 | ||