| PEOPLE | St. Johnsbury | Wolfeboro | United States |
| Population | 6,193 | 2,838 | 308,035,306 |
| Pop. Density | 482 | 417 | 87 |
| Pop. Change | 0.78% | 2.25% | 8.07% |
| Median Age | 41.9 | 54 | 37.3 |
| Households | 2,623 | 1,353 | 116,716,292 |
| Household Size | 2.23 | 2.17 | 2.58 |
| Male Population | 49.46% | 46.83% | 49.27% |
| Female Population | 50.54% | 53.17% | 50.96% |
| Married Population | 39.35% | 53.67% | 47.02% |
| Single Population | 60.65% | 46.33% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.28% | 3.17% | 6.56% |
| Age 5 to 9 | 5.34% | 3.95% | 6.61% |
| Age 10 to 14 | 5.60% | 5.43% | 6.71% |
| Age 15 to 17 | 3.86% | 3.70% | 4.21% |
| Age 18 to 20 | 2.57% | 1.80% | 2.95% |
| Age 21 to 24 | 6.75% | 3.28% | 7.01% |
| Age 25 to 34 | 11.77% | 5.85% | 13.33% |
| Age 35 to 44 | 11.51% | 9.34% | 13.33% |
| Age 45 to 49 | 15.44% | 15.15% | 14.61% |
| Age 50 to 54 | 15.44% | 15.15% | 14.61% |
| Age 55 to 59 | 12.85% | 16.14% | 11.84% |
| Age 60 to 64 | 12.85% | 16.14% | 11.84% |
| Age 65 to 74 | 7.44% | 15.12% | 7.05% |
| Age 75 to 84 | 6.46% | 11.21% | 4.24% |
| Age 85 and over | 4.12% | 5.88% | 1.78% |
| RACE | | | |
| White | 95.35% | 97.57% | 72.41% |
| Black | 0.90% | 0.18% | 12.61% |
| Asian | 1.31% | 0.70% | 4.75% |
| American Indian | 0.66% | 0.21% | 0.95% |
| Other | 1.78% | 1.34% | 9.28% |
| Hispanic | 0.83% | 18.35% | 16.35% |
| Non-Hispanic | 99.17% | 81.65% | 83.65% |
| FAMILY | | | |
| Married, w/children | 23.77% | 20.88% | 30.42% |
| Married, no children | 42.23% | 60.13% | 42.46% |
| Single, w/children | 23.43% | 10.31% | 14.39% |
| Single, no children | 10.56% | 8.68% | 12.73% |
| Divorced | 16.83% | 10.92% | 10.62% |
| Separated | 2.65% | 4.71% | 4.97% |
| Widowed | 10.35% | 9.31% | 6.14% |
| Now Married | 39.88% | 53.32% | 46.32% |
| Never Married | 30.28% | 21.73% | 31.95% |