| | Princeville, IL | Metamora, IL | United States |
| Population | 1,864 | 4,032 | 329,725,481 |
| Female Population | 51.3% | 55.9% | 50.5% |
| Male Population | 48.7% | 44.2% | 49.5% |
| Median Age | 36.8 | 37.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,740 | 3,679 | 309,327,143 |
| Population - 2000 | 1,621 | 2,700 | 285,036,114 |
| Population - 1990 | 1,421 | 2,520 | 251,960,433 |
| Pop. 2000 to Now | 2.6% | 35.1% | 15.6% |
| Pop. 1990 to Now | 17.0% | 44.8% | 30.8% |
| space4 | | | |
| Population Density | 1,105.6 | 1,969.7 | 93.4 |
| Land Area | 1.7 | 2.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Princeville, IL | Metamora, IL | United States |
| Age 0 to 4 | 6.5% | 10.0% | 5.9% |
| Age 5 to 9 | 10.4% | 9.6% | 6.1% |
| Age 10 to 14 | 7.8% | 3.3% | 6.6% |
| Age 15 to 17 | 6.0% | 4.3% | 3.9% |
| Age 18 to 20 | 1.4% | 1.0% | 4.0% |
| Age 21 to 24 | 4.2% | 1.5% | 5.2% |
| Age 25 to 34 | 10.7% | 12.9% | 13.8% |
| Age 35 to 44 | 9.9% | 15.8% | 12.9% |
| Age 45 to 54 | 12.3% | 11.9% | 12.6% |
| Age 55 to 59 | 7.3% | 4.6% | 6.7% |
| Age 60 to 64 | 5.7% | 7.3% | 6.3% |
| Age 65 to 74 | 8.5% | 9.5% | 9.6% |
| Age 75 to 84 | 7.5% | 5.0% | 4.5% |
| Age 85 and over | 1.9% | 3.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Princeville, IL | Metamora, IL | United States |
| White | 86.3% | 95.3% | 59.4% |
| Black | 0.3% | 0.6% | 12.2% |
| Asian | 0.0% | 1.4% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 1.4% | 0.0% | 0.4% |
| Two or More Races | 5.2% | 1.7% | 3.2% |
| Hispanic | 6.9% | 1.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Princeville, IL | Metamora, IL | United States |
| Married Population | 53.3% | 63.2% | 49.8% |
| Currently Married | 50.4% | 62.8% | 48.0% |
| Married but Separated | 2.8% | 0.4% | 1.8% |
| Single Population | 46.7% | 36.8% | 50.2% |
| Never Married | 31.2% | 16.2% | 33.8% |
| Divorced | 8.1% | 12.1% | 10.8% |
| Widowed | 7.4% | 8.5% | 5.6% |
| space5 | | | |
| Household Size | 2.72 | 2.38 | 2.60 |
| Households | 683 | 1,652 | 124,010,992 |
| Family Households | 491 | 1,131 | 80,755,759 |
| Married couple, w/children | 26.7% | 33.1% | 30.5% |
| Married couple, no children | 42.6% | 50.7% | 42.9% |
| Non Family Households | 192 | 521 | 43,255,233 |
| Single householder, w/children | 18.9% | 15.1% | 15.8% |
| Single householder, no children | 11.8% | 1.1% | 10.8% |