| | Springport, MI | Howell, MI | United States |
| Population | 843 | 10,025 | 329,725,481 |
| Female Population | 47.8% | 54.1% | 50.5% |
| Male Population | 52.2% | 45.9% | 49.5% |
| Median Age | 38.3 | 35.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 799 | 9,464 | 309,327,143 |
| Population - 2000 | 704 | 9,232 | 285,036,114 |
| Population - 1990 | 707 | 8,184 | 251,960,433 |
| Pop. 2000 to Now | 11.2% | 4.5% | 15.6% |
| Pop. 1990 to Now | 10.8% | 17.9% | 30.8% |
| space4 | | | |
| Population Density | 669.1 | 2,009.0 | 93.4 |
| Land Area | 1.3 | 5.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Springport, MI | Howell, MI | United States |
| Age 0 to 4 | 7.0% | 5.7% | 5.9% |
| Age 5 to 9 | 8.9% | 6.0% | 6.1% |
| Age 10 to 14 | 8.7% | 4.2% | 6.6% |
| Age 15 to 17 | 4.6% | 2.4% | 3.9% |
| Age 18 to 20 | 2.1% | 2.2% | 4.0% |
| Age 21 to 24 | 5.3% | 10.1% | 5.2% |
| Age 25 to 34 | 10.2% | 19.0% | 13.8% |
| Age 35 to 44 | 15.3% | 9.8% | 12.9% |
| Age 45 to 54 | 11.7% | 10.3% | 12.6% |
| Age 55 to 59 | 9.7% | 7.1% | 6.7% |
| Age 60 to 64 | 3.0% | 6.4% | 6.3% |
| Age 65 to 74 | 6.9% | 7.1% | 9.6% |
| Age 75 to 84 | 4.4% | 5.4% | 4.5% |
| Age 85 and over | 2.1% | 4.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Springport, MI | Howell, MI | United States |
| White | 88.7% | 88.3% | 59.4% |
| Black | 0.6% | 1.3% | 12.2% |
| Asian | 0.0% | 1.5% | 5.6% |
| Native American | 0.1% | 0.6% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.8% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 7.8% | 1.9% | 3.2% |
| Hispanic | 2.7% | 5.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Springport, MI | Howell, MI | United States |
| Married Population | 49.8% | 33.1% | 49.8% |
| Currently Married | 46.4% | 32.5% | 48.0% |
| Married but Separated | 3.5% | 0.5% | 1.8% |
| Single Population | 50.2% | 66.9% | 50.2% |
| Never Married | 30.2% | 35.6% | 33.8% |
| Divorced | 9.4% | 21.9% | 10.8% |
| Widowed | 10.5% | 9.5% | 5.6% |
| space5 | | | |
| Household Size | 2.65 | 1.97 | 2.60 |
| Households | 318 | 4,861 | 124,010,992 |
| Family Households | 210 | 2,031 | 80,755,759 |
| Married couple, w/children | 32.4% | 28.4% | 30.5% |
| Married couple, no children | 38.6% | 38.5% | 42.9% |
| Non Family Households | 108 | 2,830 | 43,255,233 |
| Single householder, w/children | 14.3% | 23.1% | 15.8% |
| Single householder, no children | 14.8% | 10.0% | 10.8% |