| | Sylvan Grove, KS | Minneapolis, KS | United States |
| Population | 355 | 1,902 | 329,725,481 |
| Female Population | 49.3% | 51.6% | 50.5% |
| Male Population | 50.7% | 48.4% | 49.5% |
| Median Age | 48.2 | 39.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 297 | 2,038 | 309,327,143 |
| Population - 2000 | 324 | 2,046 | 285,036,114 |
| Population - 1990 | 321 | 1,983 | 251,960,433 |
| Pop. 2000 to Now | -17.0% | -7.3% | 15.6% |
| Pop. 1990 to Now | -16.2% | -4.3% | 30.8% |
| space4 | | | |
| Population Density | 922.1 | 1,037.6 | 93.4 |
| Land Area | 0.4 | 1.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Sylvan Grove, KS | Minneapolis, KS | United States |
| Age 0 to 4 | 3.9% | 6.4% | 5.9% |
| Age 5 to 9 | 2.3% | 6.5% | 6.1% |
| Age 10 to 14 | 16.3% | 6.9% | 6.6% |
| Age 15 to 17 | 7.0% | 3.0% | 3.9% |
| Age 18 to 20 | 1.4% | 2.7% | 4.0% |
| Age 21 to 24 | 0.6% | 3.7% | 5.2% |
| Age 25 to 34 | 7.9% | 12.1% | 13.8% |
| Age 35 to 44 | 8.2% | 16.9% | 12.9% |
| Age 45 to 54 | 12.1% | 7.4% | 12.6% |
| Age 55 to 59 | 7.6% | 7.3% | 6.7% |
| Age 60 to 64 | 3.9% | 5.8% | 6.3% |
| Age 65 to 74 | 17.7% | 9.4% | 9.6% |
| Age 75 to 84 | 7.9% | 9.6% | 4.5% |
| Age 85 and over | 3.1% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Sylvan Grove, KS | Minneapolis, KS | United States |
| White | 99.4% | 93.2% | 59.4% |
| Black | 0.0% | 0.6% | 12.2% |
| Asian | 0.0% | 0.2% | 5.6% |
| Native American | 0.0% | 1.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 2.7% | 3.2% |
| Hispanic | 0.6% | 1.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Sylvan Grove, KS | Minneapolis, KS | United States |
| Married Population | 40.4% | 46.4% | 49.8% |
| Currently Married | 40.0% | 45.8% | 48.0% |
| Married but Separated | 0.4% | 0.6% | 1.8% |
| Single Population | 59.6% | 53.6% | 50.2% |
| Never Married | 20.7% | 26.3% | 33.8% |
| Divorced | 33.1% | 14.8% | 10.8% |
| Widowed | 5.8% | 12.5% | 5.6% |
| space5 | | | |
| Household Size | 2.11 | 2.11 | 2.60 |
| Households | 168 | 859 | 124,010,992 |
| Family Households | 73 | 538 | 80,755,759 |
| Married couple, w/children | 28.8% | 28.3% | 30.5% |
| Married couple, no children | 41.1% | 35.7% | 42.9% |
| Non Family Households | 95 | 321 | 43,255,233 |
| Single householder, w/children | 24.7% | 22.9% | 15.8% |
| Single householder, no children | 5.5% | 13.2% | 10.8% |