| | Wall Lake, SD | Kadoka, SD | United States |
| Population | 1,604 | 500 | 329,725,481 |
| Female Population | 51.1% | 51.6% | 50.5% |
| Male Population | 48.9% | 48.4% | 49.5% |
| Median Age | 35.5 | 37.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,154 | 659 | 309,327,143 |
| Population - 2000 | 1,095 | 706 | 285,036,114 |
| Population - 1990 | 863 | 736 | 251,960,433 |
| Pop. 2000 to Now | 7.0% | 0.4% | 15.6% |
| Pop. 1990 to Now | 35.8% | -3.7% | 30.8% |
| space4 | | | |
| Population Density | 45.2 | 218.8 | 93.4 |
| Land Area | 35.5 | 2.3 | 3,531,905.4 |
| Water Area | 0.6 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Wall Lake, SD | Kadoka, SD | United States |
| Age 0 to 4 | 14.2% | 8.0% | 5.9% |
| Age 5 to 9 | 5.9% | 6.6% | 6.1% |
| Age 10 to 14 | 8.9% | 2.8% | 6.6% |
| Age 15 to 17 | 5.3% | 3.4% | 3.9% |
| Age 18 to 20 | 3.3% | 13.0% | 4.0% |
| Age 21 to 24 | 2.3% | 0.0% | 5.2% |
| Age 25 to 34 | 9.0% | 8.8% | 13.8% |
| Age 35 to 44 | 10.8% | 14.0% | 12.9% |
| Age 45 to 54 | 17.2% | 12.0% | 12.6% |
| Age 55 to 59 | 2.7% | 7.4% | 6.7% |
| Age 60 to 64 | 8.7% | 6.0% | 6.3% |
| Age 65 to 74 | 9.8% | 2.8% | 9.6% |
| Age 75 to 84 | 1.9% | 8.4% | 4.5% |
| Age 85 and over | 0.0% | 6.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Wall Lake, SD | Kadoka, SD | United States |
| White | 98.5% | 73.2% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.4% | 1.6% | 5.6% |
| Native American | 0.0% | 22.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.1% | 3.0% | 3.2% |
| Hispanic | 0.0% | 0.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Wall Lake, SD | Kadoka, SD | United States |
| Married Population | 81.7% | 37.0% | 49.8% |
| Currently Married | 81.7% | 32.0% | 48.0% |
| Married but Separated | 0.0% | 5.1% | 1.8% |
| Single Population | 18.3% | 63.0% | 50.2% |
| Never Married | 16.9% | 33.2% | 33.8% |
| Divorced | 1.4% | 13.6% | 10.8% |
| Widowed | 0.0% | 16.2% | 5.6% |
| space5 | | | |
| Household Size | 3.11 | 2.38 | 2.60 |
| Households | 503 | 177 | 124,010,992 |
| Family Households | 469 | 106 | 80,755,759 |
| Married couple, w/children | 48.4% | 17.9% | 30.5% |
| Married couple, no children | 51.6% | 27.4% | 42.9% |
| Non Family Households | 34 | 71 | 43,255,233 |
| Single householder, w/children | 0.0% | 33.0% | 15.8% |
| Single householder, no children | 0.0% | 21.7% | 10.8% |