| PEOPLE | Lexington-Fayette | Boulder | United States |
| Population | 295,803 | 97,385 | 308,035,306 |
| Pop. Density | 1,043 | 3,948 | 87 |
| Pop. Change | 14.58% | 2.41% | 8.07% |
| Median Age | 33.8 | 28.8 | 37.3 |
| Households | 123,043 | 41,302 | 116,716,292 |
| Household Size | 2.3 | 2.16 | 2.58 |
| Male Population | 49.22% | 51.35% | 49.27% |
| Female Population | 50.78% | 48.65% | 50.96% |
| Married Population | 43.98% | 29.68% | 47.02% |
| Single Population | 56.02% | 70.32% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.47% | 4.06% | 6.56% |
| Age 5 to 9 | 6.00% | 3.97% | 6.61% |
| Age 10 to 14 | 5.47% | 3.65% | 6.71% |
| Age 15 to 17 | 3.23% | 2.21% | 4.21% |
| Age 18 to 20 | 3.77% | 8.76% | 2.95% |
| Age 21 to 24 | 10.33% | 20.35% | 7.01% |
| Age 25 to 34 | 16.64% | 15.99% | 13.33% |
| Age 35 to 44 | 13.28% | 11.73% | 13.33% |
| Age 45 to 49 | 13.50% | 10.79% | 14.61% |
| Age 50 to 54 | 13.50% | 10.79% | 14.61% |
| Age 55 to 59 | 10.77% | 9.57% | 11.84% |
| Age 60 to 64 | 10.77% | 9.57% | 11.84% |
| Age 65 to 74 | 5.73% | 4.60% | 7.05% |
| Age 75 to 84 | 3.34% | 2.73% | 4.24% |
| Age 85 and over | 1.45% | 1.61% | 1.78% |
| RACE | | | |
| White | 75.73% | 88.00% | 72.41% |
| Black | 14.53% | 0.90% | 12.61% |
| Asian | 3.23% | 4.73% | 4.75% |
| American Indian | 0.26% | 0.44% | 0.95% |
| Other | 6.26% | 5.93% | 9.28% |
| Hispanic | 0.00% | 12.31% | 16.35% |
| Non-Hispanic | 100.00% | 87.69% | 83.65% |
| FAMILY | | | |
| Married, w/children | 29.45% | 34.21% | 30.42% |
| Married, no children | 41.42% | 45.48% | 42.46% |
| Single, w/children | 15.99% | 11.18% | 14.39% |
| Single, no children | 13.15% | 9.13% | 12.73% |
| Divorced | 12.24% | 10.00% | 10.62% |
| Separated | 4.02% | 4.73% | 4.97% |
| Widowed | 5.02% | 3.36% | 6.14% |
| Now Married | 44.25% | 29.69% | 46.32% |
| Never Married | 34.47% | 52.23% | 31.95% |
