| | Chatham, IL | Jenks, OK | United States |
| Population | 14,245 | 25,210 | 329,725,481 |
| Female Population | 55.0% | 50.6% | 50.5% |
| Male Population | 45.0% | 49.4% | 49.5% |
| Median Age | 35.2 | 34.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 11,779 | 17,182 | 309,327,143 |
| Population - 2000 | 8,583 | 9,557 | 285,036,114 |
| Population - 1990 | 6,074 | 7,493 | 251,960,433 |
| Pop. 2000 to Now | 53.3% | 153.8% | 15.6% |
| Pop. 1990 to Now | 116.6% | 223.7% | 30.8% |
| space4 | | | |
| Population Density | 2,045.5 | 1,470.0 | 93.4 |
| Land Area | 7.0 | 17.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.9 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Chatham, IL | Jenks, OK | United States |
| Age 0 to 4 | 7.1% | 7.6% | 5.9% |
| Age 5 to 9 | 9.9% | 9.3% | 6.1% |
| Age 10 to 14 | 8.5% | 9.9% | 6.6% |
| Age 15 to 17 | 5.0% | 5.2% | 3.9% |
| Age 18 to 20 | 3.6% | 3.6% | 4.0% |
| Age 21 to 24 | 3.9% | 3.6% | 5.2% |
| Age 25 to 34 | 11.8% | 11.9% | 13.8% |
| Age 35 to 44 | 17.5% | 15.2% | 12.9% |
| Age 45 to 54 | 11.2% | 12.9% | 12.6% |
| Age 55 to 59 | 5.5% | 5.9% | 6.7% |
| Age 60 to 64 | 4.8% | 4.7% | 6.3% |
| Age 65 to 74 | 6.7% | 5.7% | 9.6% |
| Age 75 to 84 | 3.8% | 3.1% | 4.5% |
| Age 85 and over | 0.7% | 1.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Chatham, IL | Jenks, OK | United States |
| White | 92.6% | 69.2% | 59.4% |
| Black | 1.9% | 2.0% | 12.2% |
| Asian | 1.0% | 8.3% | 5.6% |
| Native American | 0.0% | 4.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.0% | 0.3% | 0.4% |
| Two or More Races | 2.9% | 8.0% | 3.2% |
| Hispanic | 1.7% | 7.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Chatham, IL | Jenks, OK | United States |
| Married Population | 56.3% | 62.6% | 49.8% |
| Currently Married | 55.8% | 61.5% | 48.0% |
| Married but Separated | 0.5% | 1.1% | 1.8% |
| Single Population | 43.7% | 37.4% | 50.2% |
| Never Married | 25.7% | 24.0% | 33.8% |
| Divorced | 14.4% | 8.7% | 10.8% |
| Widowed | 3.6% | 4.7% | 5.6% |
| space5 | | | |
| Household Size | 2.71 | 2.97 | 2.60 |
| Households | 5,257 | 8,468 | 124,010,992 |
| Family Households | 3,605 | 6,743 | 80,755,759 |
| Married couple, w/children | 45.0% | 47.6% | 30.5% |
| Married couple, no children | 36.0% | 33.5% | 42.9% |
| Non Family Households | 1,652 | 1,725 | 43,255,233 |
| Single householder, w/children | 14.0% | 12.7% | 15.8% |
| Single householder, no children | 5.1% | 6.3% | 10.8% |