| | Allegan, MI | Archbold, OH | United States |
| Population | 5,165 | 4,509 | 329,725,481 |
| Female Population | 49.5% | 50.9% | 50.5% |
| Male Population | 50.6% | 49.1% | 49.5% |
| Median Age | 31.8 | 45.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,996 | 4,315 | 309,327,143 |
| Population - 2000 | 4,838 | 4,290 | 285,036,114 |
| Population - 1990 | 4,547 | 3,440 | 251,960,433 |
| Pop. 2000 to Now | 3.7% | 0.0% | 15.6% |
| Pop. 1990 to Now | 10.3% | 24.7% | 30.8% |
| space4 | | | |
| Population Density | 1,343.0 | 937.8 | 93.4 |
| Land Area | 3.8 | 4.8 | 3,531,905.4 |
| Water Area | 0.4 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Allegan, MI | Archbold, OH | United States |
| Age 0 to 4 | 4.7% | 5.2% | 5.9% |
| Age 5 to 9 | 8.0% | 7.4% | 6.1% |
| Age 10 to 14 | 7.4% | 10.8% | 6.6% |
| Age 15 to 17 | 3.3% | 2.7% | 3.9% |
| Age 18 to 20 | 4.0% | 2.5% | 4.0% |
| Age 21 to 24 | 14.4% | 2.4% | 5.2% |
| Age 25 to 34 | 14.2% | 8.5% | 13.8% |
| Age 35 to 44 | 8.8% | 9.4% | 12.9% |
| Age 45 to 54 | 8.1% | 11.6% | 12.6% |
| Age 55 to 59 | 7.8% | 8.9% | 6.7% |
| Age 60 to 64 | 5.3% | 6.4% | 6.3% |
| Age 65 to 74 | 7.3% | 12.1% | 9.6% |
| Age 75 to 84 | 4.8% | 8.4% | 4.5% |
| Age 85 and over | 1.9% | 3.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Allegan, MI | Archbold, OH | United States |
| White | 84.1% | 83.3% | 59.4% |
| Black | 5.3% | 1.7% | 12.2% |
| Asian | 1.5% | 0.0% | 5.6% |
| Native American | 0.7% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.2% | 0.2% |
| Other | 0.4% | 0.0% | 0.4% |
| Two or More Races | 3.0% | 1.4% | 3.2% |
| Hispanic | 5.0% | 13.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Allegan, MI | Archbold, OH | United States |
| Married Population | 46.1% | 65.3% | 49.8% |
| Currently Married | 44.2% | 64.2% | 48.0% |
| Married but Separated | 1.9% | 1.1% | 1.8% |
| Single Population | 53.9% | 34.7% | 50.2% |
| Never Married | 36.5% | 20.1% | 33.8% |
| Divorced | 11.3% | 5.4% | 10.8% |
| Widowed | 6.1% | 9.2% | 5.6% |
| space5 | | | |
| Household Size | 2.54 | 2.46 | 2.60 |
| Households | 1,939 | 1,779 | 124,010,992 |
| Family Households | 1,264 | 1,263 | 80,755,759 |
| Married couple, w/children | 31.6% | 29.5% | 30.5% |
| Married couple, no children | 37.9% | 54.2% | 42.9% |
| Non Family Households | 675 | 516 | 43,255,233 |
| Single householder, w/children | 17.3% | 15.4% | 15.8% |
| Single householder, no children | 13.2% | 0.8% | 10.8% |