| | Anna, IL | Arcadia, MO | United States |
| Population | 4,262 | 547 | 329,725,481 |
| Female Population | 47.9% | 49.9% | 50.5% |
| Male Population | 52.1% | 50.1% | 49.5% |
| Median Age | 43.6 | 51.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,417 | 586 | 309,327,143 |
| Population - 2000 | 5,136 | 567 | 285,036,114 |
| Population - 1990 | 4,805 | 609 | 251,960,433 |
| Pop. 2000 to Now | -21.0% | -2.7% | 15.6% |
| Pop. 1990 to Now | -15.5% | -9.4% | 30.8% |
| space4 | | | |
| Population Density | 1,199.6 | 661.4 | 93.4 |
| Land Area | 3.6 | 0.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Anna, IL | Arcadia, MO | United States |
| Age 0 to 4 | 6.3% | 2.6% | 5.9% |
| Age 5 to 9 | 3.2% | 4.2% | 6.1% |
| Age 10 to 14 | 11.0% | 7.5% | 6.6% |
| Age 15 to 17 | 0.5% | 6.6% | 3.9% |
| Age 18 to 20 | 2.5% | 0.9% | 4.0% |
| Age 21 to 24 | 4.4% | 2.2% | 5.2% |
| Age 25 to 34 | 11.1% | 4.6% | 13.8% |
| Age 35 to 44 | 11.4% | 10.1% | 12.9% |
| Age 45 to 54 | 11.0% | 18.5% | 12.6% |
| Age 55 to 59 | 8.9% | 9.5% | 6.7% |
| Age 60 to 64 | 5.7% | 6.2% | 6.3% |
| Age 65 to 74 | 12.3% | 11.0% | 9.6% |
| Age 75 to 84 | 6.4% | 11.3% | 4.5% |
| Age 85 and over | 5.2% | 4.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Anna, IL | Arcadia, MO | United States |
| White | 93.6% | 96.5% | 59.4% |
| Black | 3.7% | 1.5% | 12.2% |
| Asian | 0.7% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.8% | 2.0% | 3.2% |
| Hispanic | 1.3% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Anna, IL | Arcadia, MO | United States |
| Married Population | 41.0% | 55.0% | 49.8% |
| Currently Married | 40.1% | 52.7% | 48.0% |
| Married but Separated | 0.9% | 2.3% | 1.8% |
| Single Population | 59.0% | 45.0% | 50.2% |
| Never Married | 27.8% | 16.4% | 33.8% |
| Divorced | 14.3% | 21.3% | 10.8% |
| Widowed | 16.9% | 7.2% | 5.6% |
| space5 | | | |
| Household Size | 2.15 | 2.01 | 2.60 |
| Households | 1,860 | 261 | 124,010,992 |
| Family Households | 955 | 135 | 80,755,759 |
| Married couple, w/children | 23.9% | 18.5% | 30.5% |
| Married couple, no children | 38.1% | 68.1% | 42.9% |
| Non Family Households | 905 | 126 | 43,255,233 |
| Single householder, w/children | 29.8% | 13.3% | 15.8% |
| Single householder, no children | 8.2% | 0.0% | 10.8% |