| PEOPLE | North Liberty | North Decatur | United States |
| Population | 13,374 | 16,698 | 308,035,306 |
| Pop. Density | 1,707 | 3,351 | 87 |
| Pop. Change | 134.59% | 8.11% | 8.07% |
| Median Age | 29.2 | 39.8 | 37.3 |
| Households | 5,492 | 8,576 | 116,716,292 |
| Household Size | 2.48 | 1.97 | 2.58 |
| Male Population | 48.97% | 46.08% | 49.27% |
| Female Population | 51.03% | 53.92% | 50.96% |
| Married Population | 52.71% | 34.86% | 47.02% |
| Single Population | 47.29% | 65.14% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 11.73% | 5.90% | 6.56% |
| Age 5 to 9 | 8.40% | 4.64% | 6.61% |
| Age 10 to 14 | 5.57% | 3.52% | 6.71% |
| Age 15 to 17 | 2.39% | 1.96% | 4.21% |
| Age 18 to 20 | 1.13% | 1.02% | 2.95% |
| Age 21 to 24 | 7.93% | 6.78% | 7.01% |
| Age 25 to 34 | 28.82% | 18.57% | 13.33% |
| Age 35 to 44 | 15.15% | 15.42% | 13.33% |
| Age 45 to 49 | 9.22% | 13.45% | 14.61% |
| Age 50 to 54 | 9.22% | 13.45% | 14.61% |
| Age 55 to 59 | 6.15% | 12.32% | 11.84% |
| Age 60 to 64 | 6.15% | 12.32% | 11.84% |
| Age 65 to 74 | 2.16% | 6.47% | 7.05% |
| Age 75 to 84 | 1.02% | 6.05% | 4.24% |
| Age 85 and over | 0.34% | 3.90% | 1.78% |
| RACE | | | |
| White | 90.23% | 72.66% | 72.41% |
| Black | 4.55% | 12.19% | 12.61% |
| Asian | 1.84% | 11.09% | 4.75% |
| American Indian | 0.19% | 0.28% | 0.95% |
| Other | 3.20% | 3.78% | 9.28% |
| Hispanic | 0.75% | 3.10% | 16.35% |
| Non-Hispanic | 99.25% | 96.90% | 83.65% |
| FAMILY | | | |
| Married, w/children | 45.34% | 30.81% | 30.42% |
| Married, no children | 32.86% | 45.89% | 42.46% |
| Single, w/children | 14.78% | 11.29% | 14.39% |
| Single, no children | 7.02% | 12.02% | 12.73% |
| Divorced | 13.95% | 11.64% | 10.62% |
| Separated | 1.46% | 3.67% | 4.97% |
| Widowed | 2.92% | 10.18% | 6.14% |
| Now Married | 52.57% | 34.64% | 46.32% |
| Never Married | 29.10% | 39.87% | 31.95% |
