| | Dallas, MI | Sandusky, MI | United States |
| Population | 2,665 | 2,676 | 329,725,481 |
| Female Population | 49.5% | 53.2% | 50.5% |
| Male Population | 50.5% | 46.8% | 49.5% |
| Median Age | 39.4 | 44.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,369 | 2,676 | 309,327,143 |
| Population - 2000 | 2,323 | 2,745 | 285,036,114 |
| Population - 1990 | 2,146 | 2,403 | 251,960,433 |
| Pop. 2000 to Now | 3.1% | -9.1% | 15.6% |
| Pop. 1990 to Now | 11.6% | 3.8% | 30.8% |
| space4 | | | |
| Population Density | 73.2 | 1,231.5 | 93.4 |
| Land Area | 36.4 | 2.2 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Dallas, MI | Sandusky, MI | United States |
| Age 0 to 4 | 6.3% | 3.4% | 5.9% |
| Age 5 to 9 | 5.7% | 6.0% | 6.1% |
| Age 10 to 14 | 7.3% | 7.1% | 6.6% |
| Age 15 to 17 | 6.1% | 3.8% | 3.9% |
| Age 18 to 20 | 3.8% | 4.7% | 4.0% |
| Age 21 to 24 | 6.2% | 2.7% | 5.2% |
| Age 25 to 34 | 9.6% | 9.8% | 13.8% |
| Age 35 to 44 | 12.6% | 13.6% | 12.9% |
| Age 45 to 54 | 14.4% | 11.3% | 12.6% |
| Age 55 to 59 | 5.6% | 11.6% | 6.7% |
| Age 60 to 64 | 7.9% | 5.7% | 6.3% |
| Age 65 to 74 | 9.9% | 11.4% | 9.6% |
| Age 75 to 84 | 2.7% | 6.2% | 4.5% |
| Age 85 and over | 1.9% | 2.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Dallas, MI | Sandusky, MI | United States |
| White | 91.3% | 87.9% | 59.4% |
| Black | 0.6% | 2.1% | 12.2% |
| Asian | 0.3% | 1.5% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 1.8% | 2.9% | 3.2% |
| Hispanic | 6.1% | 5.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Dallas, MI | Sandusky, MI | United States |
| Married Population | 60.7% | 43.3% | 49.8% |
| Currently Married | 59.3% | 42.1% | 48.0% |
| Married but Separated | 1.4% | 1.2% | 1.8% |
| Single Population | 39.3% | 56.7% | 50.2% |
| Never Married | 31.2% | 32.7% | 33.8% |
| Divorced | 3.5% | 15.4% | 10.8% |
| Widowed | 4.6% | 8.6% | 5.6% |
| space5 | | | |
| Household Size | 2.87 | 2.18 | 2.60 |
| Households | 927 | 1,092 | 124,010,992 |
| Family Households | 689 | 616 | 80,755,759 |
| Married couple, w/children | 41.9% | 26.9% | 30.5% |
| Married couple, no children | 47.2% | 44.8% | 42.9% |
| Non Family Households | 238 | 476 | 43,255,233 |
| Single householder, w/children | 6.1% | 19.3% | 15.8% |
| Single householder, no children | 4.8% | 8.9% | 10.8% |