| PEOPLE | Columbia | Lexington Hills | United States |
| Population | 34,681 | 2,421 | 308,035,306 |
| Pop. Density | 1,100 | 517 | 87 |
| Pop. Change | 3.37% | 0.30% | 8.07% |
| Median Age | 36.1 | 44.8 | 37.3 |
| Households | 14,012 | 946 | 116,716,292 |
| Household Size | 2.43 | 2.49 | 2.58 |
| Male Population | 46.85% | 51.43% | 49.27% |
| Female Population | 53.15% | 48.57% | 50.96% |
| Married Population | 43.41% | 53.30% | 47.02% |
| Single Population | 56.59% | 46.70% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.59% | 5.91% | 6.56% |
| Age 5 to 9 | 6.93% | 6.61% | 6.61% |
| Age 10 to 14 | 6.50% | 5.53% | 6.71% |
| Age 15 to 17 | 3.68% | 4.21% | 4.21% |
| Age 18 to 20 | 2.79% | 1.49% | 2.95% |
| Age 21 to 24 | 6.91% | 3.51% | 7.01% |
| Age 25 to 34 | 14.35% | 8.34% | 13.33% |
| Age 35 to 44 | 11.74% | 14.70% | 13.33% |
| Age 45 to 49 | 13.71% | 22.22% | 14.61% |
| Age 50 to 54 | 13.71% | 22.22% | 14.61% |
| Age 55 to 59 | 11.56% | 16.94% | 11.84% |
| Age 60 to 64 | 11.56% | 16.94% | 11.84% |
| Age 65 to 74 | 6.76% | 7.64% | 7.05% |
| Age 75 to 84 | 5.20% | 2.11% | 4.24% |
| Age 85 and over | 2.30% | 0.78% | 1.78% |
| RACE | | | |
| White | 72.10% | 88.72% | 72.41% |
| Black | 20.78% | 0.41% | 12.61% |
| Asian | 0.77% | 3.72% | 4.75% |
| American Indian | 0.31% | 0.21% | 0.95% |
| Other | 6.04% | 6.94% | 9.28% |
| Hispanic | 7.16% | 21.27% | 16.35% |
| Non-Hispanic | 92.84% | 78.73% | 83.65% |
| FAMILY | | | |
| Married, w/children | 23.73% | 40.43% | 30.42% |
| Married, no children | 39.25% | 45.18% | 42.46% |
| Single, w/children | 21.17% | 7.04% | 14.39% |
| Single, no children | 15.86% | 7.35% | 12.73% |
| Divorced | 14.55% | 10.08% | 10.62% |
| Separated | 3.59% | 2.55% | 4.97% |
| Widowed | 9.01% | 4.03% | 6.14% |
| Now Married | 43.73% | 52.63% | 46.32% |
| Never Married | 29.12% | 30.72% | 31.95% |
