| | Spray, OR | Monument, OR | United States |
| Population | 155 | 126 | 329,725,481 |
| Female Population | 47.1% | 64.3% | 50.5% |
| Male Population | 52.9% | 35.7% | 49.5% |
| Median Age | 62.2 | 69.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 162 | 124 | 309,327,143 |
| Population - 2000 | 140 | 151 | 285,036,114 |
| Population - 1990 | 149 | 162 | 251,960,433 |
| Pop. 2000 to Now | 12.1% | -19.2% | 15.6% |
| Pop. 1990 to Now | 5.4% | -24.7% | 30.8% |
| space4 | | | |
| Population Density | 536.3 | 246.6 | 93.4 |
| Land Area | 0.3 | 0.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Spray, OR | Monument, OR | United States |
| Age 0 to 4 | 8.4% | 0.0% | 5.9% |
| Age 5 to 9 | 0.6% | 0.0% | 6.1% |
| Age 10 to 14 | 2.6% | 4.8% | 6.6% |
| Age 15 to 17 | 7.7% | 0.0% | 3.9% |
| Age 18 to 20 | 4.5% | 0.0% | 4.0% |
| Age 21 to 24 | 0.0% | 4.0% | 5.2% |
| Age 25 to 34 | 11.6% | 1.6% | 13.8% |
| Age 35 to 44 | 5.8% | 1.6% | 12.9% |
| Age 45 to 54 | 1.3% | 26.2% | 12.6% |
| Age 55 to 59 | 4.5% | 3.2% | 6.7% |
| Age 60 to 64 | 9.0% | 3.2% | 6.3% |
| Age 65 to 74 | 23.2% | 15.1% | 9.6% |
| Age 75 to 84 | 15.5% | 5.6% | 4.5% |
| Age 85 and over | 5.2% | 34.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Spray, OR | Monument, OR | United States |
| White | 86.5% | 54.0% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 4.5% | 0.8% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 8.4% | 1.6% | 3.2% |
| Hispanic | 0.6% | 43.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Spray, OR | Monument, OR | United States |
| Married Population | 53.3% | 23.3% | 49.8% |
| Currently Married | 45.3% | 23.3% | 48.0% |
| Married but Separated | 8.0% | 0.0% | 1.8% |
| Single Population | 46.7% | 76.7% | 50.2% |
| Never Married | 22.6% | 6.7% | 33.8% |
| Divorced | 15.3% | 30.0% | 10.8% |
| Widowed | 8.8% | 40.0% | 5.6% |
| space5 | | | |
| Household Size | 2.12 | 1.19 | 2.60 |
| Households | 65 | 106 | 124,010,992 |
| Family Households | 28 | 14 | 80,755,759 |
| Married couple, w/children | 25.0% | 28.6% | 30.5% |
| Married couple, no children | 67.9% | 71.4% | 42.9% |
| Non Family Households | 37 | 92 | 43,255,233 |
| Single householder, w/children | 3.6% | 0.0% | 15.8% |
| Single householder, no children | 3.6% | 0.0% | 10.8% |