| | Oak Grove, OR | Murphy, NC | United States |
| Population | 17,382 | 1,659 | 329,725,481 |
| Female Population | 49.2% | 51.8% | 50.5% |
| Male Population | 50.8% | 48.2% | 49.5% |
| Median Age | 42.5 | 40.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 16,931 | 1,610 | 309,327,143 |
| Population - 2000 | 12,808 | 1,568 | 285,036,114 |
| Population - 1990 | 12,576 | 1,575 | 251,960,433 |
| Pop. 2000 to Now | 37.1% | 6.3% | 15.6% |
| Pop. 1990 to Now | 39.6% | 5.8% | 30.8% |
| space4 | | | |
| Population Density | 4,461.5 | 650.6 | 93.4 |
| Land Area | 3.9 | 2.6 | 3,531,905.4 |
| Water Area | 0.3 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Oak Grove, OR | Murphy, NC | United States |
| Age 0 to 4 | 5.0% | 4.3% | 5.9% |
| Age 5 to 9 | 4.7% | 3.8% | 6.1% |
| Age 10 to 14 | 4.5% | 3.3% | 6.6% |
| Age 15 to 17 | 3.6% | 1.6% | 3.9% |
| Age 18 to 20 | 3.2% | 3.4% | 4.0% |
| Age 21 to 24 | 4.5% | 5.0% | 5.2% |
| Age 25 to 34 | 13.6% | 19.2% | 13.8% |
| Age 35 to 44 | 15.5% | 12.7% | 12.9% |
| Age 45 to 54 | 12.3% | 9.3% | 12.6% |
| Age 55 to 59 | 5.5% | 7.4% | 6.7% |
| Age 60 to 64 | 5.1% | 4.8% | 6.3% |
| Age 65 to 74 | 12.7% | 16.9% | 9.6% |
| Age 75 to 84 | 6.5% | 6.8% | 4.5% |
| Age 85 and over | 3.4% | 1.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Oak Grove, OR | Murphy, NC | United States |
| White | 80.3% | 79.0% | 59.4% |
| Black | 1.0% | 4.8% | 12.2% |
| Asian | 1.3% | 2.2% | 5.6% |
| Native American | 0.4% | 4.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.3% | 1.1% | 0.4% |
| Two or More Races | 6.1% | 3.0% | 3.2% |
| Hispanic | 10.5% | 5.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Oak Grove, OR | Murphy, NC | United States |
| Married Population | 46.6% | 44.9% | 49.8% |
| Currently Married | 45.1% | 42.3% | 48.0% |
| Married but Separated | 1.5% | 2.7% | 1.8% |
| Single Population | 53.4% | 55.1% | 50.2% |
| Never Married | 33.7% | 32.5% | 33.8% |
| Divorced | 12.6% | 15.3% | 10.8% |
| Widowed | 7.1% | 7.3% | 5.6% |
| space5 | | | |
| Household Size | 2.35 | 1.98 | 2.60 |
| Households | 7,272 | 783 | 124,010,992 |
| Family Households | 4,087 | 339 | 80,755,759 |
| Married couple, w/children | 28.0% | 30.1% | 30.5% |
| Married couple, no children | 44.5% | 49.6% | 42.9% |
| Non Family Households | 3,185 | 444 | 43,255,233 |
| Single householder, w/children | 14.7% | 10.6% | 15.8% |
| Single householder, no children | 12.8% | 9.7% | 10.8% |