| | Kirby, AR | Hope, AR | United States |
| Population | 719 | 9,010 | 329,725,481 |
| Female Population | 48.8% | 54.2% | 50.5% |
| Male Population | 51.2% | 45.8% | 49.5% |
| Median Age | 44.2 | 37.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 617 | 10,118 | 309,327,143 |
| Population - 2000 | 706 | 10,616 | 285,036,114 |
| Population - 1990 | 655 | 9,643 | 251,960,433 |
| Pop. 2000 to Now | 38.1% | -11.1% | 15.6% |
| Pop. 1990 to Now | 48.9% | -2.1% | 30.8% |
| space4 | | | |
| Population Density | 50.2 | 843.5 | 93.4 |
| Land Area | 14.3 | 10.7 | 3,531,905.4 |
| Water Area | 0.1 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Kirby, AR | Hope, AR | United States |
| Age 0 to 4 | 4.2% | 9.4% | 5.9% |
| Age 5 to 9 | 1.7% | 7.7% | 6.1% |
| Age 10 to 14 | 9.7% | 7.6% | 6.6% |
| Age 15 to 17 | 8.1% | 4.6% | 3.9% |
| Age 18 to 20 | 5.8% | 3.7% | 4.0% |
| Age 21 to 24 | 6.7% | 4.8% | 5.2% |
| Age 25 to 34 | 5.0% | 9.8% | 13.8% |
| Age 35 to 44 | 12.4% | 12.5% | 12.9% |
| Age 45 to 54 | 11.8% | 12.0% | 12.6% |
| Age 55 to 59 | 8.9% | 9.2% | 6.7% |
| Age 60 to 64 | 5.4% | 4.2% | 6.3% |
| Age 65 to 74 | 8.5% | 6.4% | 9.6% |
| Age 75 to 84 | 10.6% | 6.6% | 4.5% |
| Age 85 and over | 1.3% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Kirby, AR | Hope, AR | United States |
| White | 93.0% | 36.5% | 59.4% |
| Black | 0.0% | 43.7% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.6% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.7% | 1.7% | 3.2% |
| Hispanic | 6.3% | 17.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Kirby, AR | Hope, AR | United States |
| Married Population | 61.0% | 43.8% | 49.8% |
| Currently Married | 57.5% | 38.4% | 48.0% |
| Married but Separated | 3.5% | 5.4% | 1.8% |
| Single Population | 39.0% | 56.2% | 50.2% |
| Never Married | 27.8% | 31.8% | 33.8% |
| Divorced | 4.3% | 14.1% | 10.8% |
| Widowed | 6.9% | 10.3% | 5.6% |
| space5 | | | |
| Household Size | 3.01 | 2.67 | 2.60 |
| Households | 239 | 3,260 | 124,010,992 |
| Family Households | 199 | 2,125 | 80,755,759 |
| Married couple, w/children | 45.2% | 20.5% | 30.5% |
| Married couple, no children | 46.7% | 34.5% | 42.9% |
| Non Family Households | 40 | 1,135 | 43,255,233 |
| Single householder, w/children | 0.0% | 34.1% | 15.8% |
| Single householder, no children | 8.0% | 10.9% | 10.8% |