| PEOPLE | Ottawa | Junction City | United States |
| Population | 12,649 | 23,353 | 308,035,306 |
| Pop. Density | 1,356 | 1,922 | 87 |
| Pop. Change | 4.74% | 21.15% | 8.07% |
| Median Age | 33.1 | 28.8 | 37.3 |
| Households | 4,998 | 9,134 | 116,716,292 |
| Household Size | 2.46 | 2.51 | 2.58 |
| Male Population | 48.46% | 48.88% | 49.27% |
| Female Population | 51.54% | 51.12% | 50.96% |
| Married Population | 53.95% | 49.42% | 47.02% |
| Single Population | 46.05% | 50.58% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 8.27% | 10.16% | 6.56% |
| Age 5 to 9 | 8.05% | 8.11% | 6.61% |
| Age 10 to 14 | 6.85% | 6.68% | 6.71% |
| Age 15 to 17 | 3.79% | 4.10% | 4.21% |
| Age 18 to 20 | 3.68% | 2.83% | 2.95% |
| Age 21 to 24 | 7.79% | 10.10% | 7.01% |
| Age 25 to 34 | 14.17% | 18.22% | 13.33% |
| Age 35 to 44 | 11.27% | 12.10% | 13.33% |
| Age 45 to 49 | 13.00% | 11.24% | 14.61% |
| Age 50 to 54 | 13.00% | 11.24% | 14.61% |
| Age 55 to 59 | 9.96% | 8.02% | 11.84% |
| Age 60 to 64 | 9.96% | 8.02% | 11.84% |
| Age 65 to 74 | 6.34% | 4.20% | 7.05% |
| Age 75 to 84 | 4.48% | 3.01% | 4.24% |
| Age 85 and over | 2.35% | 1.23% | 1.78% |
| RACE | | | |
| White | 91.00% | 60.69% | 72.41% |
| Black | 2.17% | 22.26% | 12.61% |
| Asian | 0.39% | 3.90% | 4.75% |
| American Indian | 0.95% | 0.91% | 0.95% |
| Other | 5.50% | 12.24% | 9.28% |
| Hispanic | 7.29% | 19.39% | 16.35% |
| Non-Hispanic | 92.71% | 80.61% | 83.65% |
| FAMILY | | | |
| Married, w/children | 30.86% | 31.02% | 30.42% |
| Married, no children | 40.45% | 37.65% | 42.46% |
| Single, w/children | 19.22% | 22.54% | 14.39% |
| Single, no children | 9.47% | 8.79% | 12.73% |
| Divorced | 11.76% | 13.19% | 10.62% |
| Separated | 3.16% | 8.85% | 4.97% |
| Widowed | 7.21% | 6.93% | 6.14% |
| Now Married | 53.67% | 50.14% | 46.32% |
| Never Married | 24.19% | 20.90% | 31.95% |
