| | Sanford, MI | Perry, FL | United States |
| Population | 773 | 6,886 | 329,725,481 |
| Female Population | 48.4% | 55.9% | 50.5% |
| Male Population | 51.6% | 44.1% | 49.5% |
| Median Age | 44.8 | 35.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 864 | 6,996 | 309,327,143 |
| Population - 2000 | 943 | 6,847 | 285,036,114 |
| Population - 1990 | 889 | 7,151 | 251,960,433 |
| Pop. 2000 to Now | -10.4% | 0.4% | 15.6% |
| Pop. 1990 to Now | -5.0% | -3.9% | 30.8% |
| space4 | | | |
| Population Density | 607.7 | 730.1 | 93.4 |
| Land Area | 1.3 | 9.4 | 3,531,905.4 |
| Water Area | 0.3 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Sanford, MI | Perry, FL | United States |
| Age 0 to 4 | 5.0% | 5.3% | 5.9% |
| Age 5 to 9 | 4.5% | 10.4% | 6.1% |
| Age 10 to 14 | 2.7% | 9.8% | 6.6% |
| Age 15 to 17 | 2.1% | 4.3% | 3.9% |
| Age 18 to 20 | 6.0% | 4.8% | 4.0% |
| Age 21 to 24 | 4.3% | 3.2% | 5.2% |
| Age 25 to 34 | 11.1% | 11.2% | 13.8% |
| Age 35 to 44 | 14.7% | 12.4% | 12.9% |
| Age 45 to 54 | 11.9% | 11.3% | 12.6% |
| Age 55 to 59 | 11.5% | 3.2% | 6.7% |
| Age 60 to 64 | 5.6% | 8.5% | 6.3% |
| Age 65 to 74 | 12.9% | 8.8% | 9.6% |
| Age 75 to 84 | 6.6% | 3.7% | 4.5% |
| Age 85 and over | 1.0% | 3.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Sanford, MI | Perry, FL | United States |
| White | 97.5% | 51.0% | 59.4% |
| Black | 0.9% | 42.8% | 12.2% |
| Asian | 0.4% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 3.3% | 0.4% |
| Two or More Races | 0.5% | 0.8% | 3.2% |
| Hispanic | 0.6% | 2.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Sanford, MI | Perry, FL | United States |
| Married Population | 51.6% | 40.9% | 49.8% |
| Currently Married | 51.2% | 38.6% | 48.0% |
| Married but Separated | 0.4% | 2.2% | 1.8% |
| Single Population | 48.4% | 59.1% | 50.2% |
| Never Married | 28.6% | 38.3% | 33.8% |
| Divorced | 14.6% | 11.9% | 10.8% |
| Widowed | 5.2% | 9.0% | 5.6% |
| space5 | | | |
| Household Size | 2.21 | 2.85 | 2.60 |
| Households | 350 | 2,340 | 124,010,992 |
| Family Households | 205 | 1,698 | 80,755,759 |
| Married couple, w/children | 21.0% | 24.3% | 30.5% |
| Married couple, no children | 59.0% | 28.9% | 42.9% |
| Non Family Households | 145 | 642 | 43,255,233 |
| Single householder, w/children | 11.2% | 31.3% | 15.8% |
| Single householder, no children | 8.8% | 15.5% | 10.8% |