| PEOPLE | Washington township (Lehigh county) | Slatington | United States |
| Population | 6,624 | 4,232 | 308,035,306 |
| Pop. Density | 281 | 3,204 | 87 |
| Pop. Change | 0.02% | -2.43% | 8.07% |
| Median Age | 45.2 | 39.2 | 37.3 |
| Households | 2,650 | 1,766 | 116,716,292 |
| Household Size | 2.5 | 2.4 | 2.58 |
| Male Population | 50.71% | 47.99% | 49.27% |
| Female Population | 49.29% | 52.01% | 50.96% |
| Married Population | 54.26% | 43.75% | 47.02% |
| Single Population | 45.74% | 56.25% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 4.20% | 5.69% | 6.56% |
| Age 5 to 9 | 5.15% | 6.12% | 6.61% |
| Age 10 to 14 | 5.74% | 7.04% | 6.71% |
| Age 15 to 17 | 4.42% | 4.49% | 4.21% |
| Age 18 to 20 | 1.98% | 2.43% | 2.95% |
| Age 21 to 24 | 4.35% | 6.12% | 7.01% |
| Age 25 to 34 | 9.30% | 12.36% | 13.33% |
| Age 35 to 44 | 14.40% | 13.37% | 13.33% |
| Age 45 to 49 | 20.02% | 17.34% | 14.61% |
| Age 50 to 54 | 20.02% | 17.34% | 14.61% |
| Age 55 to 59 | 15.79% | 11.11% | 11.84% |
| Age 60 to 64 | 15.79% | 11.11% | 11.84% |
| Age 65 to 74 | 9.04% | 7.09% | 7.05% |
| Age 75 to 84 | 4.21% | 4.66% | 4.24% |
| Age 85 and over | 1.40% | 2.17% | 1.78% |
| RACE | | | |
| White | 97.98% | 94.07% | 72.41% |
| Black | 0.39% | 1.61% | 12.61% |
| Asian | 0.36% | 0.50% | 4.75% |
| American Indian | 0.21% | 0.40% | 0.95% |
| Other | 1.06% | 3.43% | 9.28% |
| Hispanic | 2.76% | 0.86% | 16.35% |
| Non-Hispanic | 97.24% | 99.14% | 83.65% |
| FAMILY | | | |
| Married, w/children | 27.21% | 24.36% | 30.42% |
| Married, no children | 55.92% | 42.28% | 42.46% |
| Single, w/children | 7.71% | 20.40% | 14.39% |
| Single, no children | 9.16% | 12.96% | 12.73% |
| Divorced | 9.65% | 11.65% | 10.62% |
| Separated | 2.34% | 5.32% | 4.97% |
| Widowed | 7.06% | 8.27% | 6.14% |
| Now Married | 55.29% | 43.87% | 46.32% |
| Never Married | 25.66% | 30.88% | 31.95% |
