| | Alden, MI | Mahomet, IL | United States |
| Population | 125 | 9,297 | 329,725,481 |
| Female Population | 57.6% | 52.0% | 50.5% |
| Male Population | 42.4% | 48.1% | 49.5% |
| Median Age | 55.2 | 37.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 133 | 7,330 | 309,327,143 |
| Population - 2000 | 104 | 4,877 | 285,036,114 |
| Population - 1990 | 91 | 3,103 | 251,960,433 |
| Pop. 2000 to Now | -6.7% | 83.9% | 15.6% |
| Pop. 1990 to Now | 6.6% | 189.0% | 30.8% |
| space4 | | | |
| Population Density | 312.5 | 974.5 | 93.4 |
| Land Area | 0.4 | 9.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Alden, MI | Mahomet, IL | United States |
| Age 0 to 4 | 0.0% | 7.3% | 5.9% |
| Age 5 to 9 | 0.0% | 9.3% | 6.1% |
| Age 10 to 14 | 3.2% | 11.0% | 6.6% |
| Age 15 to 17 | 12.8% | 3.5% | 3.9% |
| Age 18 to 20 | 8.0% | 5.4% | 4.0% |
| Age 21 to 24 | 0.0% | 2.5% | 5.2% |
| Age 25 to 34 | 0.0% | 8.1% | 13.8% |
| Age 35 to 44 | 4.8% | 17.3% | 12.9% |
| Age 45 to 54 | 20.8% | 13.8% | 12.6% |
| Age 55 to 59 | 5.6% | 7.2% | 6.7% |
| Age 60 to 64 | 11.2% | 6.3% | 6.3% |
| Age 65 to 74 | 25.6% | 5.8% | 9.6% |
| Age 75 to 84 | 4.8% | 1.9% | 4.5% |
| Age 85 and over | 3.2% | 0.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Alden, MI | Mahomet, IL | United States |
| White | 100.0% | 90.3% | 59.4% |
| Black | 0.0% | 0.5% | 12.2% |
| Asian | 0.0% | 1.3% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.4% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 4.6% | 3.2% |
| Hispanic | 0.0% | 2.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Alden, MI | Mahomet, IL | United States |
| Married Population | 57.9% | 72.3% | 49.8% |
| Currently Married | 57.9% | 72.3% | 48.0% |
| Married but Separated | 0.0% | 0.0% | 1.8% |
| Single Population | 42.1% | 27.7% | 50.2% |
| Never Married | 24.8% | 18.5% | 33.8% |
| Divorced | 14.9% | 6.2% | 10.8% |
| Widowed | 2.5% | 3.1% | 5.6% |
| space5 | | | |
| Household Size | 2.12 | 2.96 | 2.60 |
| Households | 59 | 3,139 | 124,010,992 |
| Family Households | 34 | 2,623 | 80,755,759 |
| Married couple, w/children | 52.9% | 45.6% | 30.5% |
| Married couple, no children | 47.1% | 45.0% | 42.9% |
| Non Family Households | 25 | 516 | 43,255,233 |
| Single householder, w/children | 0.0% | 5.5% | 15.8% |
| Single householder, no children | 0.0% | 3.9% | 10.8% |