| | Annex, OR | Payette, ID | United States |
| Population | 312 | 7,999 | 329,725,481 |
| Female Population | 50.6% | 52.3% | 50.5% |
| Male Population | 49.4% | 47.7% | 49.5% |
| Median Age | 37 | 40.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 259 | 7,506 | 309,327,143 |
| Population - 2000 | 254 | 7,054 | 285,036,114 |
| Population - 1990 | 248 | 5,592 | 251,960,433 |
| Pop. 2000 to Now | 6.7% | 13.6% | 15.6% |
| Pop. 1990 to Now | 9.3% | 43.3% | 30.8% |
| space4 | | | |
| Population Density | 126.9 | 2,043.7 | 93.4 |
| Land Area | 2.5 | 3.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Annex, OR | Payette, ID | United States |
| Age 0 to 4 | 4.2% | 10.3% | 5.9% |
| Age 5 to 9 | 6.4% | 7.7% | 6.1% |
| Age 10 to 14 | 2.2% | 3.1% | 6.6% |
| Age 15 to 17 | 3.8% | 1.8% | 3.9% |
| Age 18 to 20 | 0.0% | 3.0% | 4.0% |
| Age 21 to 24 | 15.1% | 5.5% | 5.2% |
| Age 25 to 34 | 16.7% | 14.6% | 13.8% |
| Age 35 to 44 | 5.4% | 7.0% | 12.9% |
| Age 45 to 54 | 12.2% | 14.4% | 12.6% |
| Age 55 to 59 | 8.0% | 6.6% | 6.7% |
| Age 60 to 64 | 9.3% | 6.2% | 6.3% |
| Age 65 to 74 | 10.3% | 12.5% | 9.6% |
| Age 75 to 84 | 6.1% | 5.6% | 4.5% |
| Age 85 and over | 0.3% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Annex, OR | Payette, ID | United States |
| White | 71.5% | 71.1% | 59.4% |
| Black | 0.0% | 0.6% | 12.2% |
| Asian | 1.3% | 0.0% | 5.6% |
| Native American | 0.0% | 0.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 2.2% | 0.4% |
| Two or More Races | 0.6% | 5.1% | 3.2% |
| Hispanic | 26.6% | 20.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Annex, OR | Payette, ID | United States |
| Married Population | 34.2% | 54.4% | 49.8% |
| Currently Married | 33.5% | 54.2% | 48.0% |
| Married but Separated | 0.7% | 0.2% | 1.8% |
| Single Population | 65.8% | 45.6% | 50.2% |
| Never Married | 44.5% | 26.0% | 33.8% |
| Divorced | 15.1% | 13.5% | 10.8% |
| Widowed | 6.3% | 6.1% | 5.6% |
| space5 | | | |
| Household Size | 2.92 | 2.71 | 2.60 |
| Households | 107 | 2,907 | 124,010,992 |
| Family Households | 65 | 2,027 | 80,755,759 |
| Married couple, w/children | 30.8% | 24.8% | 30.5% |
| Married couple, no children | 24.6% | 51.9% | 42.9% |
| Non Family Households | 42 | 880 | 43,255,233 |
| Single householder, w/children | 10.8% | 18.5% | 15.8% |
| Single householder, no children | 33.8% | 4.8% | 10.8% |