| | Gilbertsville, PA | Ellsworth, ME | United States |
| Population | 6,013 | 8,340 | 329,725,481 |
| Female Population | 49.8% | 55.2% | 50.5% |
| Male Population | 50.2% | 44.8% | 49.5% |
| Median Age | 36.9 | 44.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,345 | 7,736 | 309,327,143 |
| Population - 2000 | 4,242 | 6,456 | 285,036,114 |
| Population - 1990 | 3,994 | 5,975 | 251,960,433 |
| Pop. 2000 to Now | 27.0% | 27.8% | 15.6% |
| Pop. 1990 to Now | 34.9% | 38.1% | 30.8% |
| space4 | | | |
| Population Density | 1,795.5 | 105.2 | 93.4 |
| Land Area | 3.3 | 79.3 | 3,531,905.4 |
| Water Area | 0.0 | 14.6 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Gilbertsville, PA | Ellsworth, ME | United States |
| Age 0 to 4 | 7.0% | 3.8% | 5.9% |
| Age 5 to 9 | 8.2% | 5.2% | 6.1% |
| Age 10 to 14 | 6.8% | 5.7% | 6.6% |
| Age 15 to 17 | 3.8% | 3.3% | 3.9% |
| Age 18 to 20 | 2.0% | 1.8% | 4.0% |
| Age 21 to 24 | 7.8% | 4.5% | 5.2% |
| Age 25 to 34 | 11.8% | 13.1% | 13.8% |
| Age 35 to 44 | 12.0% | 13.0% | 12.9% |
| Age 45 to 54 | 14.3% | 11.2% | 12.6% |
| Age 55 to 59 | 5.2% | 7.2% | 6.7% |
| Age 60 to 64 | 7.5% | 12.1% | 6.3% |
| Age 65 to 74 | 7.8% | 11.3% | 9.6% |
| Age 75 to 84 | 4.6% | 4.4% | 4.5% |
| Age 85 and over | 1.3% | 3.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Gilbertsville, PA | Ellsworth, ME | United States |
| White | 94.3% | 93.1% | 59.4% |
| Black | 0.6% | 0.5% | 12.2% |
| Asian | 1.3% | 1.4% | 5.6% |
| Native American | 0.0% | 1.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 1.4% | 0.4% |
| Two or More Races | 1.8% | 1.2% | 3.2% |
| Hispanic | 2.0% | 1.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Gilbertsville, PA | Ellsworth, ME | United States |
| Married Population | 63.8% | 47.3% | 49.8% |
| Currently Married | 63.3% | 46.5% | 48.0% |
| Married but Separated | 0.5% | 0.7% | 1.8% |
| Single Population | 36.2% | 52.7% | 50.2% |
| Never Married | 24.7% | 30.7% | 33.8% |
| Divorced | 6.3% | 14.8% | 10.8% |
| Widowed | 5.2% | 7.2% | 5.6% |
| space5 | | | |
| Household Size | 2.86 | 2.16 | 2.60 |
| Households | 2,102 | 3,734 | 124,010,992 |
| Family Households | 1,688 | 1,934 | 80,755,759 |
| Married couple, w/children | 45.4% | 23.3% | 30.5% |
| Married couple, no children | 39.9% | 57.9% | 42.9% |
| Non Family Households | 414 | 1,800 | 43,255,233 |
| Single householder, w/children | 8.4% | 12.9% | 15.8% |
| Single householder, no children | 6.2% | 6.0% | 10.8% |