| | Hillman, MI | Allen, MI | United States |
| Population | 665 | 214 | 329,725,481 |
| Female Population | 60.0% | 50.0% | 50.5% |
| Male Population | 40.0% | 50.0% | 49.5% |
| Median Age | 57.8 | 42.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 702 | 199 | 309,327,143 |
| Population - 2000 | 685 | 225 | 285,036,114 |
| Population - 1990 | 643 | 201 | 251,960,433 |
| Pop. 2000 to Now | -2.0% | -14.7% | 15.6% |
| Pop. 1990 to Now | 4.4% | -4.5% | 30.8% |
| space4 | | | |
| Population Density | 407.0 | 1,229.9 | 93.4 |
| Land Area | 1.6 | 0.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hillman, MI | Allen, MI | United States |
| Age 0 to 4 | 2.3% | 9.3% | 5.9% |
| Age 5 to 9 | 5.3% | 3.3% | 6.1% |
| Age 10 to 14 | 4.2% | 6.5% | 6.6% |
| Age 15 to 17 | 2.9% | 1.9% | 3.9% |
| Age 18 to 20 | 2.7% | 0.5% | 4.0% |
| Age 21 to 24 | 2.1% | 7.5% | 5.2% |
| Age 25 to 34 | 7.4% | 15.4% | 13.8% |
| Age 35 to 44 | 8.4% | 7.5% | 12.9% |
| Age 45 to 54 | 10.4% | 16.8% | 12.6% |
| Age 55 to 59 | 9.3% | 3.3% | 6.7% |
| Age 60 to 64 | 11.3% | 8.9% | 6.3% |
| Age 65 to 74 | 17.7% | 10.3% | 9.6% |
| Age 75 to 84 | 8.9% | 6.5% | 4.5% |
| Age 85 and over | 7.2% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hillman, MI | Allen, MI | United States |
| White | 93.8% | 94.4% | 59.4% |
| Black | 1.1% | 1.4% | 12.2% |
| Asian | 0.0% | 0.5% | 5.6% |
| Native American | 2.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.6% | 0.9% | 3.2% |
| Hispanic | 0.5% | 2.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Hillman, MI | Allen, MI | United States |
| Married Population | 44.6% | 59.5% | 49.8% |
| Currently Married | 43.4% | 57.2% | 48.0% |
| Married but Separated | 1.2% | 2.3% | 1.8% |
| Single Population | 55.4% | 40.5% | 50.2% |
| Never Married | 22.1% | 20.2% | 33.8% |
| Divorced | 21.3% | 9.2% | 10.8% |
| Widowed | 11.9% | 11.0% | 5.6% |
| space5 | | | |
| Household Size | 1.87 | 2.40 | 2.60 |
| Households | 307 | 89 | 124,010,992 |
| Family Households | 152 | 55 | 80,755,759 |
| Married couple, w/children | 19.7% | 25.5% | 30.5% |
| Married couple, no children | 53.3% | 61.8% | 42.9% |
| Non Family Households | 155 | 34 | 43,255,233 |
| Single householder, w/children | 16.4% | 12.7% | 15.8% |
| Single householder, no children | 10.5% | 0.0% | 10.8% |