| | Sheridan, OR | Roseburg, OR | United States |
| Population | 4,826 | 23,551 | 329,725,481 |
| Female Population | 52.2% | 50.3% | 50.5% |
| Male Population | 47.9% | 49.7% | 49.5% |
| Median Age | 37.2 | 40.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 6,128 | 22,801 | 309,327,143 |
| Population - 2000 | 3,570 | 20,017 | 285,036,114 |
| Population - 1990 | 3,979 | 17,032 | 251,960,433 |
| Pop. 2000 to Now | 71.5% | 17.4% | 15.6% |
| Pop. 1990 to Now | 53.9% | 37.9% | 30.8% |
| space4 | | | |
| Population Density | 2,452.2 | 2,194.3 | 93.4 |
| Land Area | 2.0 | 10.7 | 3,531,905.4 |
| Water Area | 0.1 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Sheridan, OR | Roseburg, OR | United States |
| Age 0 to 4 | 5.3% | 5.4% | 5.9% |
| Age 5 to 9 | 5.1% | 5.1% | 6.1% |
| Age 10 to 14 | 5.9% | 7.2% | 6.6% |
| Age 15 to 17 | 2.7% | 3.5% | 3.9% |
| Age 18 to 20 | 3.2% | 2.5% | 4.0% |
| Age 21 to 24 | 6.9% | 4.7% | 5.2% |
| Age 25 to 34 | 17.1% | 15.2% | 13.8% |
| Age 35 to 44 | 10.8% | 11.3% | 12.9% |
| Age 45 to 54 | 10.4% | 11.0% | 12.6% |
| Age 55 to 59 | 9.0% | 6.5% | 6.7% |
| Age 60 to 64 | 4.8% | 7.6% | 6.3% |
| Age 65 to 74 | 10.8% | 9.9% | 9.6% |
| Age 75 to 84 | 5.1% | 5.3% | 4.5% |
| Age 85 and over | 3.0% | 4.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Sheridan, OR | Roseburg, OR | United States |
| White | 84.4% | 85.3% | 59.4% |
| Black | 0.0% | 0.2% | 12.2% |
| Asian | 0.7% | 1.1% | 5.6% |
| Native American | 0.9% | 0.7% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 4.4% | 6.6% | 3.2% |
| Hispanic | 9.6% | 6.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Sheridan, OR | Roseburg, OR | United States |
| Married Population | 49.9% | 46.2% | 49.8% |
| Currently Married | 46.8% | 43.4% | 48.0% |
| Married but Separated | 3.1% | 2.8% | 1.8% |
| Single Population | 50.1% | 53.8% | 50.2% |
| Never Married | 25.7% | 31.4% | 33.8% |
| Divorced | 18.7% | 15.1% | 10.8% |
| Widowed | 5.6% | 7.2% | 5.6% |
| space5 | | | |
| Household Size | 2.49 | 2.21 | 2.60 |
| Households | 1,917 | 10,249 | 124,010,992 |
| Family Households | 1,227 | 5,787 | 80,755,759 |
| Married couple, w/children | 29.3% | 26.6% | 30.5% |
| Married couple, no children | 45.3% | 42.1% | 42.9% |
| Non Family Households | 690 | 4,462 | 43,255,233 |
| Single householder, w/children | 9.9% | 22.6% | 15.8% |
| Single householder, no children | 15.5% | 8.7% | 10.8% |