| | Erin, NY | Woodland, WA | United States |
| Population | 1,904 | 6,368 | 329,725,481 |
| Female Population | 47.0% | 49.2% | 50.5% |
| Male Population | 53.1% | 50.8% | 49.5% |
| Median Age | 44.3 | 36.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,960 | 5,540 | 309,327,143 |
| Population - 2000 | 2,054 | 3,780 | 285,036,114 |
| Population - 1990 | 2,002 | 2,500 | 251,960,433 |
| Pop. 2000 to Now | -10.9% | 73.2% | 15.6% |
| Pop. 1990 to Now | -8.5% | 161.9% | 30.8% |
| space4 | | | |
| Population Density | 43.0 | 1,547.5 | 93.4 |
| Land Area | 44.2 | 4.1 | 3,531,905.4 |
| Water Area | 0.2 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Erin, NY | Woodland, WA | United States |
| Age 0 to 4 | 3.3% | 6.9% | 5.9% |
| Age 5 to 9 | 6.6% | 9.5% | 6.1% |
| Age 10 to 14 | 6.8% | 8.8% | 6.6% |
| Age 15 to 17 | 6.5% | 4.9% | 3.9% |
| Age 18 to 20 | 3.7% | 0.6% | 4.0% |
| Age 21 to 24 | 7.1% | 7.3% | 5.2% |
| Age 25 to 34 | 8.0% | 9.9% | 13.8% |
| Age 35 to 44 | 9.4% | 14.3% | 12.9% |
| Age 45 to 54 | 14.1% | 11.7% | 12.6% |
| Age 55 to 59 | 9.1% | 5.2% | 6.7% |
| Age 60 to 64 | 6.8% | 4.4% | 6.3% |
| Age 65 to 74 | 13.1% | 9.8% | 9.6% |
| Age 75 to 84 | 4.9% | 5.2% | 4.5% |
| Age 85 and over | 0.6% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Erin, NY | Woodland, WA | United States |
| White | 95.6% | 72.5% | 59.4% |
| Black | 0.5% | 1.2% | 12.2% |
| Asian | 0.3% | 0.2% | 5.6% |
| Native American | 0.3% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 1.4% | 0.4% |
| Two or More Races | 2.7% | 0.7% | 3.2% |
| Hispanic | 0.7% | 23.9% | 18.4% |
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| Marriage & Family | | | |
| | Erin, NY | Woodland, WA | United States |
| Married Population | 49.3% | 48.6% | 49.8% |
| Currently Married | 47.9% | 47.1% | 48.0% |
| Married but Separated | 1.4% | 1.5% | 1.8% |
| Single Population | 50.7% | 51.4% | 50.2% |
| Never Married | 32.2% | 32.9% | 33.8% |
| Divorced | 13.5% | 9.7% | 10.8% |
| Widowed | 4.9% | 8.8% | 5.6% |
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| Household Size | 2.53 | 2.71 | 2.60 |
| Households | 752 | 2,328 | 124,010,992 |
| Family Households | 490 | 1,570 | 80,755,759 |
| Married couple, w/children | 20.8% | 32.7% | 30.5% |
| Married couple, no children | 52.4% | 32.9% | 42.9% |
| Non Family Households | 262 | 758 | 43,255,233 |
| Single householder, w/children | 17.8% | 28.6% | 15.8% |
| Single householder, no children | 9.0% | 5.7% | 10.8% |