| | Hollis, AK | Sherman, ME | United States |
| Population | 201 | 930 | 329,725,481 |
| Female Population | 40.3% | 48.5% | 50.5% |
| Male Population | 59.7% | 51.5% | 49.5% |
| Median Age | 55.6 | 39.2 | 38.4 |
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| Population - 2010 | 142 | 843 | 309,327,143 |
| Population - 2000 | 139 | 937 | 285,036,114 |
| Population - 1990 | 111 | 1,027 | 251,960,433 |
| Pop. 2000 to Now | -3.6% | -17.5% | 15.6% |
| Pop. 1990 to Now | 20.7% | -24.7% | 30.8% |
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| Population Density | 3.1 | 23.2 | 93.4 |
| Land Area | 65.1 | 40.0 | 3,531,905.4 |
| Water Area | 1.0 | 0.5 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hollis, AK | Sherman, ME | United States |
| Age 0 to 4 | 6.5% | 7.7% | 5.9% |
| Age 5 to 9 | 13.4% | 10.5% | 6.1% |
| Age 10 to 14 | 0.0% | 7.3% | 6.6% |
| Age 15 to 17 | 9.0% | 1.9% | 3.9% |
| Age 18 to 20 | 0.0% | 1.1% | 4.0% |
| Age 21 to 24 | 0.0% | 3.8% | 5.2% |
| Age 25 to 34 | 7.5% | 8.3% | 13.8% |
| Age 35 to 44 | 3.5% | 15.1% | 12.9% |
| Age 45 to 54 | 0.0% | 12.8% | 12.6% |
| Age 55 to 59 | 22.4% | 3.2% | 6.7% |
| Age 60 to 64 | 5.5% | 6.9% | 6.3% |
| Age 65 to 74 | 23.4% | 14.4% | 9.6% |
| Age 75 to 84 | 9.0% | 5.7% | 4.5% |
| Age 85 and over | 0.0% | 1.3% | 1.9% |
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| Race | | | |
| | Hollis, AK | Sherman, ME | United States |
| White | 67.7% | 96.0% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 3.5% | 0.8% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 12.9% | 3.2% | 3.2% |
| Hispanic | 15.9% | 0.0% | 18.4% |
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| Marriage & Family | | | |
| | Hollis, AK | Sherman, ME | United States |
| Married Population | 72.7% | 60.1% | 49.8% |
| Currently Married | 72.7% | 59.0% | 48.0% |
| Married but Separated | 0.0% | 1.2% | 1.8% |
| Single Population | 27.3% | 39.9% | 50.2% |
| Never Married | 18.0% | 18.4% | 33.8% |
| Divorced | 0.0% | 14.2% | 10.8% |
| Widowed | 9.3% | 7.4% | 5.6% |
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| Household Size | 2.26 | 3.08 | 2.60 |
| Households | 89 | 302 | 124,010,992 |
| Family Households | 63 | 238 | 80,755,759 |
| Married couple, w/children | 57.1% | 21.8% | 30.5% |
| Married couple, no children | 42.9% | 53.4% | 42.9% |
| Non Family Households | 26 | 64 | 43,255,233 |
| Single householder, w/children | 0.0% | 13.4% | 15.8% |
| Single householder, no children | 0.0% | 11.3% | 10.8% |