| | Campbell, NY | Bath, NY | United States |
| Population | 3,179 | 11,531 | 329,725,481 |
| Female Population | 46.8% | 50.3% | 50.5% |
| Male Population | 53.2% | 49.7% | 49.5% |
| Median Age | 42.8 | 48.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,396 | 12,373 | 309,327,143 |
| Population - 2000 | 3,691 | 12,097 | 285,036,114 |
| Population - 1990 | 3,658 | 12,724 | 251,960,433 |
| Pop. 2000 to Now | -13.7% | -2.3% | 15.6% |
| Pop. 1990 to Now | -12.9% | -7.1% | 30.8% |
| space4 | | | |
| Population Density | 78.1 | 121.0 | 93.4 |
| Land Area | 40.7 | 95.3 | 3,531,905.4 |
| Water Area | 0.1 | 0.6 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Campbell, NY | Bath, NY | United States |
| Age 0 to 4 | 5.8% | 3.8% | 5.9% |
| Age 5 to 9 | 4.8% | 5.3% | 6.1% |
| Age 10 to 14 | 6.9% | 5.5% | 6.6% |
| Age 15 to 17 | 3.6% | 2.7% | 3.9% |
| Age 18 to 20 | 3.5% | 2.4% | 4.0% |
| Age 21 to 24 | 3.1% | 4.2% | 5.2% |
| Age 25 to 34 | 15.4% | 10.3% | 13.8% |
| Age 35 to 44 | 9.1% | 11.7% | 12.9% |
| Age 45 to 54 | 14.8% | 11.7% | 12.6% |
| Age 55 to 59 | 6.8% | 8.2% | 6.7% |
| Age 60 to 64 | 5.6% | 9.8% | 6.3% |
| Age 65 to 74 | 11.8% | 13.1% | 9.6% |
| Age 75 to 84 | 7.5% | 7.9% | 4.5% |
| Age 85 and over | 1.3% | 3.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Campbell, NY | Bath, NY | United States |
| White | 98.6% | 92.4% | 59.4% |
| Black | 0.3% | 4.0% | 12.2% |
| Asian | 0.2% | 0.3% | 5.6% |
| Native American | 0.3% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.3% | 2.0% | 3.2% |
| Hispanic | 0.3% | 1.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Campbell, NY | Bath, NY | United States |
| Married Population | 55.1% | 49.5% | 49.8% |
| Currently Married | 54.8% | 46.5% | 48.0% |
| Married but Separated | 0.3% | 3.0% | 1.8% |
| Single Population | 44.9% | 50.5% | 50.2% |
| Never Married | 26.5% | 27.6% | 33.8% |
| Divorced | 11.5% | 15.8% | 10.8% |
| Widowed | 6.9% | 7.0% | 5.6% |
| space5 | | | |
| Household Size | 2.58 | 2.09 | 2.60 |
| Households | 1,216 | 5,155 | 124,010,992 |
| Family Households | 919 | 2,732 | 80,755,759 |
| Married couple, w/children | 24.2% | 23.0% | 30.5% |
| Married couple, no children | 52.7% | 53.1% | 42.9% |
| Non Family Households | 297 | 2,423 | 43,255,233 |
| Single householder, w/children | 14.6% | 15.8% | 15.8% |
| Single householder, no children | 8.6% | 8.1% | 10.8% |