| | Arcadia, MO | Chester, IL | United States |
| Population | 547 | 7,787 | 329,725,481 |
| Female Population | 49.9% | 30.2% | 50.5% |
| Male Population | 50.1% | 69.8% | 49.5% |
| Median Age | 51.2 | 41.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 586 | 8,582 | 309,327,143 |
| Population - 2000 | 567 | 5,185 | 285,036,114 |
| Population - 1990 | 609 | 8,194 | 251,960,433 |
| Pop. 2000 to Now | -2.7% | 57.1% | 15.6% |
| Pop. 1990 to Now | -9.4% | -0.6% | 30.8% |
| space4 | | | |
| Population Density | 661.4 | 1,341.2 | 93.4 |
| Land Area | 0.8 | 5.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Arcadia, MO | Chester, IL | United States |
| Age 0 to 4 | 2.6% | 2.9% | 5.9% |
| Age 5 to 9 | 4.2% | 1.6% | 6.1% |
| Age 10 to 14 | 7.5% | 4.6% | 6.6% |
| Age 15 to 17 | 6.6% | 2.0% | 3.9% |
| Age 18 to 20 | 0.9% | 3.0% | 4.0% |
| Age 21 to 24 | 2.2% | 5.9% | 5.2% |
| Age 25 to 34 | 4.6% | 18.9% | 13.8% |
| Age 35 to 44 | 10.1% | 17.2% | 12.9% |
| Age 45 to 54 | 18.5% | 15.8% | 12.6% |
| Age 55 to 59 | 9.5% | 6.6% | 6.7% |
| Age 60 to 64 | 6.2% | 7.5% | 6.3% |
| Age 65 to 74 | 11.0% | 7.9% | 9.6% |
| Age 75 to 84 | 11.3% | 3.2% | 4.5% |
| Age 85 and over | 4.9% | 2.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Arcadia, MO | Chester, IL | United States |
| White | 96.5% | 64.9% | 59.4% |
| Black | 1.5% | 27.6% | 12.2% |
| Asian | 0.0% | 0.4% | 5.6% |
| Native American | 0.0% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.0% | 0.7% | 3.2% |
| Hispanic | 0.0% | 6.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Arcadia, MO | Chester, IL | United States |
| Married Population | 55.0% | 32.4% | 49.8% |
| Currently Married | 52.7% | 29.8% | 48.0% |
| Married but Separated | 2.3% | 2.6% | 1.8% |
| Single Population | 45.0% | 67.6% | 50.2% |
| Never Married | 16.4% | 51.1% | 33.8% |
| Divorced | 21.3% | 11.0% | 10.8% |
| Widowed | 7.2% | 5.5% | 5.6% |
| space5 | | | |
| Household Size | 2.01 | 2.19 | 2.60 |
| Households | 261 | 1,997 | 124,010,992 |
| Family Households | 135 | 1,094 | 80,755,759 |
| Married couple, w/children | 18.5% | 18.5% | 30.5% |
| Married couple, no children | 68.1% | 48.4% | 42.9% |
| Non Family Households | 126 | 903 | 43,255,233 |
| Single householder, w/children | 13.3% | 17.8% | 15.8% |
| Single householder, no children | 0.0% | 15.3% | 10.8% |