| | Richland, OR | Cove, OR | United States |
| Population | 211 | 689 | 329,725,481 |
| Female Population | 53.6% | 48.3% | 50.5% |
| Male Population | 46.5% | 51.7% | 49.5% |
| Median Age | 52.8 | 47.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 161 | 624 | 309,327,143 |
| Population - 2000 | 147 | 594 | 285,036,114 |
| Population - 1990 | 161 | 507 | 251,960,433 |
| Pop. 2000 to Now | 19.7% | 9.8% | 15.6% |
| Pop. 1990 to Now | 9.3% | 28.6% | 30.8% |
| space4 | | | |
| Population Density | 1,972.0 | 857.0 | 93.4 |
| Land Area | 0.1 | 0.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Richland, OR | Cove, OR | United States |
| Age 0 to 4 | 10.9% | 0.9% | 5.9% |
| Age 5 to 9 | 7.6% | 4.6% | 6.1% |
| Age 10 to 14 | 0.9% | 2.3% | 6.6% |
| Age 15 to 17 | 2.4% | 6.5% | 3.9% |
| Age 18 to 20 | 1.9% | 9.1% | 4.0% |
| Age 21 to 24 | 0.0% | 3.9% | 5.2% |
| Age 25 to 34 | 3.3% | 5.5% | 13.8% |
| Age 35 to 44 | 9.0% | 12.0% | 12.9% |
| Age 45 to 54 | 19.0% | 13.2% | 12.6% |
| Age 55 to 59 | 5.7% | 3.5% | 6.7% |
| Age 60 to 64 | 4.7% | 10.6% | 6.3% |
| Age 65 to 74 | 18.0% | 14.4% | 9.6% |
| Age 75 to 84 | 13.7% | 10.0% | 4.5% |
| Age 85 and over | 2.8% | 3.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Richland, OR | Cove, OR | United States |
| White | 75.4% | 90.7% | 59.4% |
| Black | 0.0% | 0.3% | 12.2% |
| Asian | 1.9% | 0.1% | 5.6% |
| Native American | 4.7% | 0.9% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.3% | 6.0% | 3.2% |
| Hispanic | 14.7% | 2.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Richland, OR | Cove, OR | United States |
| Married Population | 40.0% | 50.4% | 49.8% |
| Currently Married | 33.5% | 50.4% | 48.0% |
| Married but Separated | 6.5% | 0.0% | 1.8% |
| Single Population | 60.0% | 49.6% | 50.2% |
| Never Married | 17.1% | 23.5% | 33.8% |
| Divorced | 27.6% | 15.4% | 10.8% |
| Widowed | 15.3% | 10.7% | 5.6% |
| space5 | | | |
| Household Size | 2.81 | 2.20 | 2.60 |
| Households | 75 | 313 | 124,010,992 |
| Family Households | 38 | 183 | 80,755,759 |
| Married couple, w/children | 23.7% | 31.1% | 30.5% |
| Married couple, no children | 44.7% | 51.9% | 42.9% |
| Non Family Households | 37 | 130 | 43,255,233 |
| Single householder, w/children | 0.0% | 16.4% | 15.8% |
| Single householder, no children | 31.6% | 0.5% | 10.8% |