| | Jonesville, MI | Manhattan, IL | United States |
| Population | 2,591 | 9,366 | 329,725,481 |
| Female Population | 51.5% | 47.6% | 50.5% |
| Male Population | 48.5% | 52.4% | 49.5% |
| Median Age | 29.9 | 33.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,260 | 7,090 | 309,327,143 |
| Population - 2000 | 2,337 | 3,330 | 285,036,114 |
| Population - 1990 | 2,283 | 2,059 | 251,960,433 |
| Pop. 2000 to Now | -5.6% | 164.2% | 15.6% |
| Pop. 1990 to Now | -3.4% | 327.3% | 30.8% |
| space4 | | | |
| Population Density | 927.7 | 1,421.5 | 93.4 |
| Land Area | 2.8 | 6.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Jonesville, MI | Manhattan, IL | United States |
| Age 0 to 4 | 13.2% | 9.0% | 5.9% |
| Age 5 to 9 | 8.7% | 8.1% | 6.1% |
| Age 10 to 14 | 6.8% | 8.6% | 6.6% |
| Age 15 to 17 | 7.4% | 5.2% | 3.9% |
| Age 18 to 20 | 2.0% | 2.5% | 4.0% |
| Age 21 to 24 | 6.2% | 4.3% | 5.2% |
| Age 25 to 34 | 13.7% | 13.4% | 13.8% |
| Age 35 to 44 | 8.2% | 16.0% | 12.9% |
| Age 45 to 54 | 10.5% | 12.0% | 12.6% |
| Age 55 to 59 | 5.1% | 6.3% | 6.7% |
| Age 60 to 64 | 4.6% | 4.7% | 6.3% |
| Age 65 to 74 | 7.8% | 7.5% | 9.6% |
| Age 75 to 84 | 4.3% | 2.3% | 4.5% |
| Age 85 and over | 1.7% | 0.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Jonesville, MI | Manhattan, IL | United States |
| White | 91.2% | 89.9% | 59.4% |
| Black | 2.7% | 1.0% | 12.2% |
| Asian | 1.3% | 0.1% | 5.6% |
| Native American | 2.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.5% | 5.3% | 3.2% |
| Hispanic | 0.2% | 3.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Jonesville, MI | Manhattan, IL | United States |
| Married Population | 48.9% | 63.6% | 49.8% |
| Currently Married | 47.2% | 63.4% | 48.0% |
| Married but Separated | 1.7% | 0.2% | 1.8% |
| Single Population | 51.1% | 36.4% | 50.2% |
| Never Married | 34.1% | 24.8% | 33.8% |
| Divorced | 8.1% | 9.6% | 10.8% |
| Widowed | 8.9% | 2.0% | 5.6% |
| space5 | | | |
| Household Size | 2.73 | 3.04 | 2.60 |
| Households | 897 | 3,076 | 124,010,992 |
| Family Households | 572 | 2,432 | 80,755,759 |
| Married couple, w/children | 43.2% | 52.1% | 30.5% |
| Married couple, no children | 29.9% | 35.3% | 42.9% |
| Non Family Households | 325 | 644 | 43,255,233 |
| Single householder, w/children | 21.2% | 9.9% | 15.8% |
| Single householder, no children | 5.8% | 2.7% | 10.8% |