| | Emmett, ID | Rupert, ID | United States |
| Population | 7,408 | 5,994 | 329,725,481 |
| Female Population | 48.3% | 46.7% | 50.5% |
| Male Population | 51.7% | 53.3% | 49.5% |
| Median Age | 34.6 | 31.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 6,545 | 5,609 | 309,327,143 |
| Population - 2000 | 5,490 | 5,645 | 285,036,114 |
| Population - 1990 | 4,601 | 5,455 | 251,960,433 |
| Pop. 2000 to Now | 32.4% | 5.3% | 15.6% |
| Pop. 1990 to Now | 58.0% | 9.0% | 30.8% |
| space4 | | | |
| Population Density | 2,637.2 | 2,911.1 | 93.4 |
| Land Area | 2.8 | 2.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Emmett, ID | Rupert, ID | United States |
| Age 0 to 4 | 6.4% | 8.4% | 5.9% |
| Age 5 to 9 | 7.7% | 10.3% | 6.1% |
| Age 10 to 14 | 9.1% | 8.1% | 6.6% |
| Age 15 to 17 | 4.1% | 2.7% | 3.9% |
| Age 18 to 20 | 1.7% | 4.4% | 4.0% |
| Age 21 to 24 | 5.8% | 5.9% | 5.2% |
| Age 25 to 34 | 15.9% | 15.6% | 13.8% |
| Age 35 to 44 | 11.2% | 9.4% | 12.9% |
| Age 45 to 54 | 9.0% | 11.1% | 12.6% |
| Age 55 to 59 | 3.3% | 3.2% | 6.7% |
| Age 60 to 64 | 7.3% | 4.5% | 6.3% |
| Age 65 to 74 | 11.6% | 11.4% | 9.6% |
| Age 75 to 84 | 5.3% | 4.1% | 4.5% |
| Age 85 and over | 1.6% | 1.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Emmett, ID | Rupert, ID | United States |
| White | 76.1% | 53.4% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.2% | 0.4% | 5.6% |
| Native American | 0.8% | 0.8% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.5% | 0.0% | 0.4% |
| Two or More Races | 4.5% | 0.8% | 3.2% |
| Hispanic | 17.9% | 44.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Emmett, ID | Rupert, ID | United States |
| Married Population | 47.8% | 53.6% | 49.8% |
| Currently Married | 46.8% | 51.9% | 48.0% |
| Married but Separated | 1.0% | 1.8% | 1.8% |
| Single Population | 52.2% | 46.4% | 50.2% |
| Never Married | 24.1% | 25.8% | 33.8% |
| Divorced | 19.9% | 14.0% | 10.8% |
| Widowed | 8.2% | 6.6% | 5.6% |
| space5 | | | |
| Household Size | 2.53 | 2.94 | 2.60 |
| Households | 2,879 | 2,028 | 124,010,992 |
| Family Households | 1,894 | 1,493 | 80,755,759 |
| Married couple, w/children | 21.5% | 39.0% | 30.5% |
| Married couple, no children | 42.6% | 32.2% | 42.9% |
| Non Family Households | 985 | 535 | 43,255,233 |
| Single householder, w/children | 30.2% | 19.8% | 15.8% |
| Single householder, no children | 5.7% | 9.0% | 10.8% |