| | Mansfield, AR | Ellington, MO | United States |
| Population | 1,228 | 1,423 | 329,725,481 |
| Female Population | 48.9% | 53.2% | 50.5% |
| Male Population | 51.1% | 46.8% | 49.5% |
| Median Age | 36.9 | 37.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,150 | 985 | 309,327,143 |
| Population - 2000 | 1,097 | 1,045 | 285,036,114 |
| Population - 1990 | 1,018 | 994 | 251,960,433 |
| Pop. 2000 to Now | -0.7% | -12.4% | 15.6% |
| Pop. 1990 to Now | 7.0% | -8.0% | 30.8% |
| space4 | | | |
| Population Density | 533.9 | 974.0 | 93.4 |
| Land Area | 2.3 | 1.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Mansfield, AR | Ellington, MO | United States |
| Age 0 to 4 | 9.6% | 5.6% | 5.9% |
| Age 5 to 9 | 9.0% | 6.6% | 6.1% |
| Age 10 to 14 | 4.1% | 6.6% | 6.6% |
| Age 15 to 17 | 5.0% | 7.3% | 3.9% |
| Age 18 to 20 | 4.9% | 4.2% | 4.0% |
| Age 21 to 24 | 7.1% | 2.2% | 5.2% |
| Age 25 to 34 | 5.6% | 10.2% | 13.8% |
| Age 35 to 44 | 12.5% | 13.6% | 12.9% |
| Age 45 to 54 | 11.6% | 15.7% | 12.6% |
| Age 55 to 59 | 6.5% | 3.7% | 6.7% |
| Age 60 to 64 | 4.7% | 7.7% | 6.3% |
| Age 65 to 74 | 9.8% | 9.3% | 9.6% |
| Age 75 to 84 | 9.0% | 4.5% | 4.5% |
| Age 85 and over | 0.7% | 2.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Mansfield, AR | Ellington, MO | United States |
| White | 93.4% | 93.3% | 59.4% |
| Black | 0.0% | 1.4% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 1.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.4% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 5.0% | 5.0% | 3.2% |
| Hispanic | 0.6% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Mansfield, AR | Ellington, MO | United States |
| Married Population | 60.0% | 37.4% | 49.8% |
| Currently Married | 59.6% | 33.6% | 48.0% |
| Married but Separated | 0.4% | 3.8% | 1.8% |
| Single Population | 40.0% | 62.6% | 50.2% |
| Never Married | 19.5% | 29.6% | 33.8% |
| Divorced | 14.9% | 24.2% | 10.8% |
| Widowed | 5.6% | 8.8% | 5.6% |
| space5 | | | |
| Household Size | 2.75 | 3.13 | 2.60 |
| Households | 446 | 440 | 124,010,992 |
| Family Households | 325 | 280 | 80,755,759 |
| Married couple, w/children | 29.8% | 34.6% | 30.5% |
| Married couple, no children | 47.1% | 22.9% | 42.9% |
| Non Family Households | 121 | 160 | 43,255,233 |
| Single householder, w/children | 14.8% | 35.4% | 15.8% |
| Single householder, no children | 8.3% | 7.1% | 10.8% |