| | Berne, NY | St. James, NY | United States |
| Population | 2,711 | 13,945 | 329,725,481 |
| Female Population | 47.6% | 51.8% | 50.5% |
| Male Population | 52.5% | 48.2% | 49.5% |
| Median Age | 49.6 | 46.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,799 | 12,774 | 309,327,143 |
| Population - 2000 | 2,846 | 13,268 | 285,036,114 |
| Population - 1990 | 3,053 | 12,703 | 251,960,433 |
| Pop. 2000 to Now | -3.4% | 0.8% | 15.6% |
| Pop. 1990 to Now | -10.0% | 5.3% | 30.8% |
| space4 | | | |
| Population Density | 42.3 | 3,057.4 | 93.4 |
| Land Area | 64.0 | 4.6 | 3,531,905.4 |
| Water Area | 0.7 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Berne, NY | St. James, NY | United States |
| Age 0 to 4 | 2.8% | 4.4% | 5.9% |
| Age 5 to 9 | 3.7% | 4.1% | 6.1% |
| Age 10 to 14 | 8.1% | 6.8% | 6.6% |
| Age 15 to 17 | 4.4% | 5.1% | 3.9% |
| Age 18 to 20 | 0.7% | 4.8% | 4.0% |
| Age 21 to 24 | 4.3% | 3.8% | 5.2% |
| Age 25 to 34 | 7.6% | 10.7% | 13.8% |
| Age 35 to 44 | 14.3% | 8.7% | 12.9% |
| Age 45 to 54 | 18.6% | 16.1% | 12.6% |
| Age 55 to 59 | 6.5% | 8.5% | 6.7% |
| Age 60 to 64 | 7.8% | 6.6% | 6.3% |
| Age 65 to 74 | 10.6% | 10.3% | 9.6% |
| Age 75 to 84 | 8.3% | 5.3% | 4.5% |
| Age 85 and over | 2.2% | 4.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Berne, NY | St. James, NY | United States |
| White | 95.4% | 86.2% | 59.4% |
| Black | 0.3% | 0.4% | 12.2% |
| Asian | 1.6% | 4.2% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 2.7% | 1.2% | 3.2% |
| Hispanic | 0.1% | 7.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Berne, NY | St. James, NY | United States |
| Married Population | 68.6% | 54.9% | 49.8% |
| Currently Married | 67.9% | 53.1% | 48.0% |
| Married but Separated | 0.7% | 1.8% | 1.8% |
| Single Population | 31.4% | 45.1% | 50.2% |
| Never Married | 21.4% | 30.0% | 33.8% |
| Divorced | 5.3% | 6.1% | 10.8% |
| Widowed | 4.7% | 9.0% | 5.6% |
| space5 | | | |
| Household Size | 2.35 | 2.74 | 2.60 |
| Households | 1,154 | 4,927 | 124,010,992 |
| Family Households | 880 | 3,520 | 80,755,759 |
| Married couple, w/children | 23.4% | 34.5% | 30.5% |
| Married couple, no children | 63.3% | 46.8% | 42.9% |
| Non Family Households | 274 | 1,407 | 43,255,233 |
| Single householder, w/children | 6.6% | 7.7% | 15.8% |
| Single householder, no children | 6.7% | 10.9% | 10.8% |