| | Crete, IL | Mason, MI | United States |
| Population | 8,425 | 8,307 | 329,725,481 |
| Female Population | 53.5% | 50.7% | 50.5% |
| Male Population | 46.5% | 49.3% | 49.5% |
| Median Age | 49.8 | 39.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 8,263 | 8,263 | 309,327,143 |
| Population - 2000 | 7,346 | 6,714 | 285,036,114 |
| Population - 1990 | 6,773 | 6,768 | 251,960,433 |
| Pop. 2000 to Now | 8.1% | 25.0% | 15.6% |
| Pop. 1990 to Now | 17.2% | 24.0% | 30.8% |
| space4 | | | |
| Population Density | 869.3 | 1,630.1 | 93.4 |
| Land Area | 9.7 | 5.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Crete, IL | Mason, MI | United States |
| Age 0 to 4 | 3.3% | 5.2% | 5.9% |
| Age 5 to 9 | 4.6% | 5.0% | 6.1% |
| Age 10 to 14 | 7.5% | 7.4% | 6.6% |
| Age 15 to 17 | 3.1% | 3.7% | 3.9% |
| Age 18 to 20 | 3.5% | 2.9% | 4.0% |
| Age 21 to 24 | 4.5% | 4.8% | 5.2% |
| Age 25 to 34 | 8.6% | 13.9% | 13.8% |
| Age 35 to 44 | 8.0% | 15.1% | 12.9% |
| Age 45 to 54 | 14.6% | 11.0% | 12.6% |
| Age 55 to 59 | 6.4% | 6.5% | 6.7% |
| Age 60 to 64 | 9.3% | 7.4% | 6.3% |
| Age 65 to 74 | 15.6% | 10.4% | 9.6% |
| Age 75 to 84 | 5.8% | 4.4% | 4.5% |
| Age 85 and over | 5.1% | 2.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Crete, IL | Mason, MI | United States |
| White | 56.4% | 87.8% | 59.4% |
| Black | 31.6% | 4.1% | 12.2% |
| Asian | 0.5% | 2.5% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 2.7% | 2.6% | 3.2% |
| Hispanic | 8.7% | 2.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Crete, IL | Mason, MI | United States |
| Married Population | 48.3% | 48.1% | 49.8% |
| Currently Married | 46.0% | 47.4% | 48.0% |
| Married but Separated | 2.3% | 0.7% | 1.8% |
| Single Population | 51.7% | 51.9% | 50.2% |
| Never Married | 27.3% | 30.8% | 33.8% |
| Divorced | 12.6% | 15.0% | 10.8% |
| Widowed | 11.7% | 6.0% | 5.6% |
| space5 | | | |
| Household Size | 2.52 | 2.28 | 2.60 |
| Households | 3,300 | 3,438 | 124,010,992 |
| Family Households | 2,049 | 2,108 | 80,755,759 |
| Married couple, w/children | 25.2% | 33.0% | 30.5% |
| Married couple, no children | 48.8% | 41.5% | 42.9% |
| Non Family Households | 1,251 | 1,330 | 43,255,233 |
| Single householder, w/children | 9.8% | 12.9% | 15.8% |
| Single householder, no children | 16.3% | 12.6% | 10.8% |