| | Columbiana, AL | Rockingham, GA | United States |
| Population | 4,197 | 76 | 329,725,481 |
| Female Population | 46.3% | 46.1% | 50.5% |
| Male Population | 53.7% | 54.0% | 49.5% |
| Median Age | 41 | 70.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,171 | 198 | 309,327,143 |
| Population - 2000 | 3,316 | 181 | 285,036,114 |
| Population - 1990 | 2,968 | 176 | 251,960,433 |
| Pop. 2000 to Now | 41.2% | 64.1% | 15.6% |
| Pop. 1990 to Now | 57.8% | 68.8% | 30.8% |
| space4 | | | |
| Population Density | 241.1 | 64.9 | 93.4 |
| Land Area | 17.4 | 1.2 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Columbiana, AL | Rockingham, GA | United States |
| Age 0 to 4 | 3.0% | 0.0% | 5.9% |
| Age 5 to 9 | 4.0% | 0.0% | 6.1% |
| Age 10 to 14 | 5.6% | 0.0% | 6.6% |
| Age 15 to 17 | 3.7% | 0.0% | 3.9% |
| Age 18 to 20 | 2.5% | 0.0% | 4.0% |
| Age 21 to 24 | 2.8% | 0.0% | 5.2% |
| Age 25 to 34 | 17.2% | 0.0% | 13.8% |
| Age 35 to 44 | 16.3% | 15.8% | 12.9% |
| Age 45 to 54 | 15.5% | 0.0% | 12.6% |
| Age 55 to 59 | 12.2% | 18.4% | 6.7% |
| Age 60 to 64 | 7.1% | 0.0% | 6.3% |
| Age 65 to 74 | 5.8% | 50.0% | 9.6% |
| Age 75 to 84 | 2.8% | 0.0% | 4.5% |
| Age 85 and over | 1.6% | 15.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Columbiana, AL | Rockingham, GA | United States |
| White | 59.4% | 100.0% | 59.4% |
| Black | 26.8% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 1.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 2.6% | 0.0% | 0.4% |
| Two or More Races | 3.9% | 0.0% | 3.2% |
| Hispanic | 6.4% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Columbiana, AL | Rockingham, GA | United States |
| Married Population | 42.3% | 32.9% | 49.8% |
| Currently Married | 38.2% | 32.9% | 48.0% |
| Married but Separated | 4.1% | 0.0% | 1.8% |
| Single Population | 57.7% | 67.1% | 50.2% |
| Never Married | 37.8% | 0.0% | 33.8% |
| Divorced | 15.4% | 51.3% | 10.8% |
| Widowed | 4.5% | 15.8% | 5.6% |
| space5 | | | |
| Household Size | 2.25 | 1.43 | 2.60 |
| Households | 1,406 | 53 | 124,010,992 |
| Family Households | 883 | 14 | 80,755,759 |
| Married couple, w/children | 17.0% | 0.0% | 30.5% |
| Married couple, no children | 44.2% | 100.0% | 42.9% |
| Non Family Households | 523 | 39 | 43,255,233 |
| Single householder, w/children | 20.2% | 0.0% | 15.8% |
| Single householder, no children | 18.7% | 0.0% | 10.8% |