| | Gwinn, MI | St. Ignace, MI | United States |
| Population | 1,335 | 2,041 | 329,725,481 |
| Female Population | 54.7% | 49.6% | 50.5% |
| Male Population | 45.3% | 50.4% | 49.5% |
| Median Age | 46 | 49.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,923 | 2,430 | 309,327,143 |
| Population - 2000 | 1,965 | 2,678 | 285,036,114 |
| Population - 1990 | 2,370 | 2,568 | 251,960,433 |
| Pop. 2000 to Now | 3.1% | -13.2% | 15.6% |
| Pop. 1990 to Now | -14.6% | -9.5% | 30.8% |
| space4 | | | |
| Population Density | 271.3 | 773.7 | 93.4 |
| Land Area | 4.9 | 2.6 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Gwinn, MI | St. Ignace, MI | United States |
| Age 0 to 4 | 5.2% | 4.2% | 5.9% |
| Age 5 to 9 | 9.8% | 3.3% | 6.1% |
| Age 10 to 14 | 5.2% | 5.4% | 6.6% |
| Age 15 to 17 | 5.1% | 2.3% | 3.9% |
| Age 18 to 20 | 4.2% | 2.3% | 4.0% |
| Age 21 to 24 | 1.1% | 6.2% | 5.2% |
| Age 25 to 34 | 6.8% | 12.1% | 13.8% |
| Age 35 to 44 | 12.5% | 10.5% | 12.9% |
| Age 45 to 54 | 4.6% | 9.4% | 12.6% |
| Age 55 to 59 | 11.5% | 12.9% | 6.7% |
| Age 60 to 64 | 13.0% | 9.4% | 6.3% |
| Age 65 to 74 | 7.4% | 9.6% | 9.6% |
| Age 75 to 84 | 10.6% | 9.1% | 4.5% |
| Age 85 and over | 3.1% | 3.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Gwinn, MI | St. Ignace, MI | United States |
| White | 90.7% | 57.6% | 59.4% |
| Black | 0.0% | 5.1% | 12.2% |
| Asian | 1.8% | 1.9% | 5.6% |
| Native American | 0.6% | 28.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.2% | 0.2% |
| Other | 0.0% | 0.6% | 0.4% |
| Two or More Races | 4.9% | 5.6% | 3.2% |
| Hispanic | 2.0% | 0.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Gwinn, MI | St. Ignace, MI | United States |
| Married Population | 62.5% | 38.9% | 49.8% |
| Currently Married | 62.5% | 38.2% | 48.0% |
| Married but Separated | 0.0% | 0.7% | 1.8% |
| Single Population | 37.5% | 61.1% | 50.2% |
| Never Married | 19.4% | 35.9% | 33.8% |
| Divorced | 10.6% | 17.7% | 10.8% |
| Widowed | 7.4% | 7.5% | 5.6% |
| space5 | | | |
| Household Size | 2.50 | 1.91 | 2.60 |
| Households | 535 | 1,022 | 124,010,992 |
| Family Households | 408 | 488 | 80,755,759 |
| Married couple, w/children | 34.6% | 14.1% | 30.5% |
| Married couple, no children | 47.8% | 47.5% | 42.9% |
| Non Family Households | 127 | 534 | 43,255,233 |
| Single householder, w/children | 10.8% | 18.6% | 15.8% |
| Single householder, no children | 6.9% | 19.7% | 10.8% |