| | Monette, AR | Underwood, ND | United States |
| Population | 1,317 | 707 | 329,725,481 |
| Female Population | 48.1% | 49.1% | 50.5% |
| Male Population | 51.9% | 50.9% | 49.5% |
| Median Age | 47.1 | 47.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,537 | 776 | 309,327,143 |
| Population - 2000 | 1,179 | 812 | 285,036,114 |
| Population - 1990 | 1,115 | 976 | 251,960,433 |
| Pop. 2000 to Now | 38.2% | -10.2% | 15.6% |
| Pop. 1990 to Now | 46.1% | -25.3% | 30.8% |
| space4 | | | |
| Population Density | 235.0 | 806.2 | 93.4 |
| Land Area | 5.6 | 0.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Monette, AR | Underwood, ND | United States |
| Age 0 to 4 | 4.2% | 2.7% | 5.9% |
| Age 5 to 9 | 2.5% | 5.0% | 6.1% |
| Age 10 to 14 | 4.1% | 6.4% | 6.6% |
| Age 15 to 17 | 2.6% | 3.3% | 3.9% |
| Age 18 to 20 | 2.1% | 4.0% | 4.0% |
| Age 21 to 24 | 1.7% | 2.5% | 5.2% |
| Age 25 to 34 | 14.0% | 13.3% | 13.8% |
| Age 35 to 44 | 15.0% | 9.5% | 12.9% |
| Age 45 to 54 | 13.7% | 14.3% | 12.6% |
| Age 55 to 59 | 7.0% | 7.1% | 6.7% |
| Age 60 to 64 | 9.0% | 11.2% | 6.3% |
| Age 65 to 74 | 9.0% | 15.7% | 9.6% |
| Age 75 to 84 | 9.0% | 3.5% | 4.5% |
| Age 85 and over | 6.2% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Monette, AR | Underwood, ND | United States |
| White | 93.4% | 94.1% | 59.4% |
| Black | 0.8% | 0.0% | 12.2% |
| Asian | 0.0% | 0.6% | 5.6% |
| Native American | 0.0% | 1.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.6% | 0.4% |
| Two or More Races | 2.3% | 1.3% | 3.2% |
| Hispanic | 3.5% | 2.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Monette, AR | Underwood, ND | United States |
| Married Population | 47.2% | 66.4% | 49.8% |
| Currently Married | 44.9% | 66.4% | 48.0% |
| Married but Separated | 2.4% | 0.0% | 1.8% |
| Single Population | 52.8% | 33.6% | 50.2% |
| Never Married | 19.4% | 23.8% | 33.8% |
| Divorced | 19.4% | 3.8% | 10.8% |
| Widowed | 14.0% | 5.9% | 5.6% |
| space5 | | | |
| Household Size | 2.15 | 2.13 | 2.60 |
| Households | 581 | 332 | 124,010,992 |
| Family Households | 316 | 219 | 80,755,759 |
| Married couple, w/children | 18.7% | 25.6% | 30.5% |
| Married couple, no children | 48.7% | 67.1% | 42.9% |
| Non Family Households | 265 | 113 | 43,255,233 |
| Single householder, w/children | 22.8% | 6.8% | 15.8% |
| Single householder, no children | 9.8% | 0.5% | 10.8% |