| PEOPLE | Klamath Falls | United States |
| Population | 20,840 | 308,035,306 |
| Pop. Density | 1,052 | 87 |
| Pop. Change | 2.37% | 8.07% |
| Median Age | 33.5 | 37.3 |
| Households | 8,542 | 116,716,292 |
| Household Size | 2.35 | 2.58 |
| Male Population | 49.27% | 49.27% |
| Female Population | 50.73% | 50.96% |
| Married Population | 44.65% | 47.02% |
| Single Population | 55.35% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | |
| Age 0 to 4 | 7.24% | 6.56% |
| Age 5 to 9 | 6.38% | 6.61% |
| Age 10 to 14 | 6.19% | 6.71% |
| Age 15 to 17 | 3.75% | 4.21% |
| Age 18 to 20 | 4.20% | 2.95% |
| Age 21 to 24 | 10.46% | 7.01% |
| Age 25 to 34 | 13.61% | 13.33% |
| Age 35 to 44 | 11.64% | 13.33% |
| Age 45 to 49 | 12.36% | 14.61% |
| Age 50 to 54 | 12.36% | 14.61% |
| Age 55 to 59 | 11.85% | 11.84% |
| Age 60 to 64 | 11.85% | 11.84% |
| Age 65 to 74 | 6.06% | 7.05% |
| Age 75 to 84 | 4.04% | 4.24% |
| Age 85 and over | 2.24% | 1.78% |
| RACE | | |
| White | 83.40% | 72.41% |
| Black | 1.03% | 12.61% |
| Asian | 1.63% | 4.75% |
| American Indian | 4.30% | 0.95% |
| Other | 9.64% | 9.28% |
| Hispanic | 36.52% | 16.35% |
| Non-Hispanic | 63.48% | 83.65% |
| FAMILY | | |
| Married, w/children | 27.75% | 30.42% |
| Married, no children | 39.64% | 42.46% |
| Single, w/children | 20.32% | 14.39% |
| Single, no children | 12.28% | 12.73% |
| Divorced | 13.47% | 10.62% |
| Separated | 4.40% | 4.97% |
| Widowed | 6.73% | 6.14% |
| Now Married | 44.73% | 46.32% |
| Never Married | 30.68% | 31.95% |
