| | Ridgefield, WA | Hubbard, OR | United States |
| Population | 10,432 | 3,422 | 329,725,481 |
| Female Population | 53.0% | 49.2% | 50.5% |
| Male Population | 47.0% | 50.8% | 49.5% |
| Median Age | 34.6 | 37.6 | 38.4 |
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| Population - 2010 | 4,809 | 3,187 | 309,327,143 |
| Population - 2000 | 2,147 | 2,483 | 285,036,114 |
| Population - 1990 | 1,297 | 1,881 | 251,960,433 |
| Pop. 2000 to Now | 425.3% | 44.8% | 15.6% |
| Pop. 1990 to Now | 769.6% | 91.1% | 30.8% |
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| Population Density | 1,432.8 | 4,799.4 | 93.4 |
| Land Area | 7.3 | 0.7 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Ridgefield, WA | Hubbard, OR | United States |
| Age 0 to 4 | 8.0% | 8.5% | 5.9% |
| Age 5 to 9 | 11.2% | 8.5% | 6.1% |
| Age 10 to 14 | 9.8% | 8.3% | 6.6% |
| Age 15 to 17 | 3.8% | 4.1% | 3.9% |
| Age 18 to 20 | 1.3% | 3.3% | 4.0% |
| Age 21 to 24 | 2.4% | 2.0% | 5.2% |
| Age 25 to 34 | 14.6% | 12.9% | 13.8% |
| Age 35 to 44 | 16.1% | 15.4% | 12.9% |
| Age 45 to 54 | 10.5% | 10.7% | 12.6% |
| Age 55 to 59 | 5.5% | 7.2% | 6.7% |
| Age 60 to 64 | 5.5% | 8.2% | 6.3% |
| Age 65 to 74 | 9.6% | 7.7% | 9.6% |
| Age 75 to 84 | 1.4% | 1.9% | 4.5% |
| Age 85 and over | 0.2% | 1.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Ridgefield, WA | Hubbard, OR | United States |
| White | 83.8% | 48.8% | 59.4% |
| Black | 1.9% | 0.5% | 12.2% |
| Asian | 1.2% | 1.1% | 5.6% |
| Native American | 0.2% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 4.4% | 1.3% | 3.2% |
| Hispanic | 8.5% | 47.9% | 18.4% |
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| Marriage & Family | | | |
| | Ridgefield, WA | Hubbard, OR | United States |
| Married Population | 70.0% | 48.3% | 49.8% |
| Currently Married | 68.2% | 46.0% | 48.0% |
| Married but Separated | 1.9% | 2.3% | 1.8% |
| Single Population | 30.0% | 51.7% | 50.2% |
| Never Married | 19.4% | 32.3% | 33.8% |
| Divorced | 8.9% | 14.9% | 10.8% |
| Widowed | 1.7% | 4.5% | 5.6% |
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| Household Size | 3.04 | 3.15 | 2.60 |
| Households | 3,426 | 1,086 | 124,010,992 |
| Family Households | 2,580 | 824 | 80,755,759 |
| Married couple, w/children | 54.1% | 31.6% | 30.5% |
| Married couple, no children | 38.5% | 32.9% | 42.9% |
| Non Family Households | 846 | 262 | 43,255,233 |
| Single householder, w/children | 6.5% | 21.1% | 15.8% |
| Single householder, no children | 0.9% | 14.4% | 10.8% |