| | Oakridge, OR | Sweet Home, OR | United States |
| Population | 3,247 | 9,716 | 329,725,481 |
| Female Population | 53.7% | 48.5% | 50.5% |
| Male Population | 46.3% | 51.5% | 49.5% |
| Median Age | 41.2 | 43 | 38.4 |
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| Population - 2010 | 3,201 | 8,945 | 309,327,143 |
| Population - 2000 | 3,148 | 8,016 | 285,036,114 |
| Population - 1990 | 3,063 | 6,850 | 251,960,433 |
| Pop. 2000 to Now | 7.5% | 25.0% | 15.6% |
| Pop. 1990 to Now | 10.5% | 46.3% | 30.8% |
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| Population Density | 1,499.8 | 1,833.2 | 93.4 |
| Land Area | 2.2 | 5.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.4 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Oakridge, OR | Sweet Home, OR | United States |
| Age 0 to 4 | 6.1% | 3.7% | 5.9% |
| Age 5 to 9 | 6.9% | 5.9% | 6.1% |
| Age 10 to 14 | 5.7% | 7.0% | 6.6% |
| Age 15 to 17 | 1.5% | 5.3% | 3.9% |
| Age 18 to 20 | 0.0% | 4.3% | 4.0% |
| Age 21 to 24 | 3.9% | 2.0% | 5.2% |
| Age 25 to 34 | 19.1% | 11.2% | 13.8% |
| Age 35 to 44 | 9.9% | 12.7% | 12.9% |
| Age 45 to 54 | 9.0% | 12.2% | 12.6% |
| Age 55 to 59 | 9.4% | 7.7% | 6.7% |
| Age 60 to 64 | 8.7% | 8.6% | 6.3% |
| Age 65 to 74 | 15.9% | 11.5% | 9.6% |
| Age 75 to 84 | 2.7% | 5.6% | 4.5% |
| Age 85 and over | 1.1% | 2.3% | 1.9% |
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| Race | | | |
| | Oakridge, OR | Sweet Home, OR | United States |
| White | 93.2% | 88.2% | 59.4% |
| Black | 0.0% | 1.2% | 12.2% |
| Asian | 0.0% | 1.1% | 5.6% |
| Native American | 0.6% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.5% | 3.0% | 3.2% |
| Hispanic | 3.8% | 6.2% | 18.4% |
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| Marriage & Family | | | |
| | Oakridge, OR | Sweet Home, OR | United States |
| Married Population | 42.5% | 45.3% | 49.8% |
| Currently Married | 40.0% | 42.8% | 48.0% |
| Married but Separated | 2.5% | 2.5% | 1.8% |
| Single Population | 57.5% | 54.7% | 50.2% |
| Never Married | 32.0% | 26.4% | 33.8% |
| Divorced | 19.0% | 19.6% | 10.8% |
| Widowed | 6.6% | 8.7% | 5.6% |
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| Household Size | 2.23 | 2.46 | 2.60 |
| Households | 1,456 | 3,917 | 124,010,992 |
| Family Households | 840 | 2,572 | 80,755,759 |
| Married couple, w/children | 21.5% | 20.0% | 30.5% |
| Married couple, no children | 41.5% | 43.3% | 42.9% |
| Non Family Households | 616 | 1,345 | 43,255,233 |
| Single householder, w/children | 26.5% | 25.7% | 15.8% |
| Single householder, no children | 10.4% | 11.0% | 10.8% |