| | Wagner, SD | Tabor, SD | United States |
| Population | 1,533 | 404 | 329,725,481 |
| Female Population | 54.6% | 55.0% | 50.5% |
| Male Population | 45.4% | 45.1% | 49.5% |
| Median Age | 42 | 42.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,572 | 420 | 309,327,143 |
| Population - 2000 | 1,675 | 417 | 285,036,114 |
| Population - 1990 | 1,462 | 403 | 251,960,433 |
| Pop. 2000 to Now | -8.2% | -4.6% | 15.6% |
| Pop. 1990 to Now | 5.1% | -1.2% | 30.8% |
| space4 | | | |
| Population Density | 811.1 | 1,066.0 | 93.4 |
| Land Area | 1.9 | 0.4 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Wagner, SD | Tabor, SD | United States |
| Age 0 to 4 | 8.8% | 6.7% | 5.9% |
| Age 5 to 9 | 6.4% | 5.2% | 6.1% |
| Age 10 to 14 | 6.8% | 6.4% | 6.6% |
| Age 15 to 17 | 4.2% | 5.0% | 3.9% |
| Age 18 to 20 | 3.5% | 2.0% | 4.0% |
| Age 21 to 24 | 7.8% | 4.7% | 5.2% |
| Age 25 to 34 | 8.6% | 11.6% | 13.8% |
| Age 35 to 44 | 7.3% | 13.6% | 12.9% |
| Age 45 to 54 | 7.3% | 14.4% | 12.6% |
| Age 55 to 59 | 8.2% | 4.2% | 6.7% |
| Age 60 to 64 | 5.3% | 5.7% | 6.3% |
| Age 65 to 74 | 11.5% | 11.1% | 9.6% |
| Age 75 to 84 | 6.6% | 6.7% | 4.5% |
| Age 85 and over | 7.6% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Wagner, SD | Tabor, SD | United States |
| White | 52.8% | 88.9% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 1.9% | 0.0% | 5.6% |
| Native American | 26.3% | 6.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.3% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 6.3% | 2.5% | 3.2% |
| Hispanic | 12.2% | 2.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Wagner, SD | Tabor, SD | United States |
| Married Population | 43.1% | 71.2% | 49.8% |
| Currently Married | 42.0% | 71.2% | 48.0% |
| Married but Separated | 1.1% | 0.0% | 1.8% |
| Single Population | 56.9% | 28.8% | 50.2% |
| Never Married | 32.6% | 20.3% | 33.8% |
| Divorced | 12.6% | 3.9% | 10.8% |
| Widowed | 11.6% | 4.5% | 5.6% |
| space5 | | | |
| Household Size | 2.88 | 2.46 | 2.60 |
| Households | 495 | 164 | 124,010,992 |
| Family Households | 270 | 129 | 80,755,759 |
| Married couple, w/children | 18.9% | 31.8% | 30.5% |
| Married couple, no children | 54.1% | 56.6% | 42.9% |
| Non Family Households | 225 | 35 | 43,255,233 |
| Single householder, w/children | 17.4% | 10.1% | 15.8% |
| Single householder, no children | 9.6% | 1.6% | 10.8% |