| | Ralston, NE | Kearney, NE | United States |
| Population | 6,453 | 33,558 | 329,725,481 |
| Female Population | 51.1% | 50.3% | 50.5% |
| Male Population | 48.9% | 49.7% | 49.5% |
| Median Age | 34.9 | 32.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 6,103 | 31,005 | 309,327,143 |
| Population - 2000 | 6,314 | 27,431 | 285,036,114 |
| Population - 1990 | 6,236 | 24,396 | 251,960,433 |
| Pop. 2000 to Now | 14.9% | 24.8% | 15.6% |
| Pop. 1990 to Now | 16.3% | 40.3% | 30.8% |
| space4 | | | |
| Population Density | 3,913.3 | 2,383.7 | 93.4 |
| Land Area | 1.6 | 14.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Ralston, NE | Kearney, NE | United States |
| Age 0 to 4 | 8.1% | 6.5% | 5.9% |
| Age 5 to 9 | 5.4% | 5.9% | 6.1% |
| Age 10 to 14 | 3.9% | 5.5% | 6.6% |
| Age 15 to 17 | 2.7% | 3.3% | 3.9% |
| Age 18 to 20 | 3.0% | 9.8% | 4.0% |
| Age 21 to 24 | 7.4% | 8.9% | 5.2% |
| Age 25 to 34 | 19.8% | 13.5% | 13.8% |
| Age 35 to 44 | 9.0% | 12.8% | 12.9% |
| Age 45 to 54 | 9.5% | 9.1% | 12.6% |
| Age 55 to 59 | 7.0% | 4.7% | 6.7% |
| Age 60 to 64 | 7.3% | 5.3% | 6.3% |
| Age 65 to 74 | 8.9% | 8.4% | 9.6% |
| Age 75 to 84 | 5.3% | 4.0% | 4.5% |
| Age 85 and over | 2.8% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Ralston, NE | Kearney, NE | United States |
| White | 77.1% | 84.0% | 59.4% |
| Black | 3.7% | 0.9% | 12.2% |
| Asian | 1.6% | 2.0% | 5.6% |
| Native American | 1.3% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 4.1% | 2.9% | 3.2% |
| Hispanic | 12.3% | 9.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Ralston, NE | Kearney, NE | United States |
| Married Population | 49.1% | 44.6% | 49.8% |
| Currently Married | 48.0% | 43.8% | 48.0% |
| Married but Separated | 1.1% | 0.8% | 1.8% |
| Single Population | 50.9% | 55.4% | 50.2% |
| Never Married | 34.8% | 38.5% | 33.8% |
| Divorced | 10.7% | 11.1% | 10.8% |
| Widowed | 5.5% | 5.8% | 5.6% |
| space5 | | | |
| Household Size | 2.31 | 2.36 | 2.60 |
| Households | 2,792 | 13,397 | 124,010,992 |
| Family Households | 1,588 | 7,688 | 80,755,759 |
| Married couple, w/children | 32.2% | 28.9% | 30.5% |
| Married couple, no children | 44.2% | 46.8% | 42.9% |
| Non Family Households | 1,204 | 5,709 | 43,255,233 |
| Single householder, w/children | 14.5% | 19.9% | 15.8% |
| Single householder, no children | 9.1% | 4.4% | 10.8% |