| | Rafter J Ranch, WY | Star Valley Ranch, WY | United States |
| Population | 1,139 | 2,168 | 329,725,481 |
| Female Population | 54.2% | 45.5% | 50.5% |
| Male Population | 45.8% | 54.5% | 49.5% |
| Median Age | 52.5 | 45.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,465 | 1,524 | 309,327,143 |
| Population - 2000 | 1,138 | 776 | 285,036,114 |
| Population - 1990 | 1,092 | 421 | 251,960,433 |
| Pop. 2000 to Now | 40.0% | 119.1% | 15.6% |
| Pop. 1990 to Now | 45.9% | 303.8% | 30.8% |
| space4 | | | |
| Population Density | 1,744.3 | 786.4 | 93.4 |
| Land Area | 0.7 | 2.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Rafter J Ranch, WY | Star Valley Ranch, WY | United States |
| Age 0 to 4 | 0.0% | 4.2% | 5.9% |
| Age 5 to 9 | 1.8% | 6.3% | 6.1% |
| Age 10 to 14 | 6.1% | 5.5% | 6.6% |
| Age 15 to 17 | 3.4% | 3.2% | 3.9% |
| Age 18 to 20 | 1.1% | 1.9% | 4.0% |
| Age 21 to 24 | 2.0% | 3.9% | 5.2% |
| Age 25 to 34 | 0.0% | 11.5% | 13.8% |
| Age 35 to 44 | 20.0% | 12.4% | 12.9% |
| Age 45 to 54 | 21.7% | 8.9% | 12.6% |
| Age 55 to 59 | 9.5% | 6.4% | 6.7% |
| Age 60 to 64 | 12.0% | 6.5% | 6.3% |
| Age 65 to 74 | 9.0% | 19.6% | 9.6% |
| Age 75 to 84 | 9.0% | 8.3% | 4.5% |
| Age 85 and over | 4.5% | 1.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Rafter J Ranch, WY | Star Valley Ranch, WY | United States |
| White | 87.4% | 91.4% | 59.4% |
| Black | 0.0% | 0.2% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 1.3% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 1.3% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.8% | 3.1% | 3.2% |
| Hispanic | 8.1% | 5.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Rafter J Ranch, WY | Star Valley Ranch, WY | United States |
| Married Population | 57.0% | 67.1% | 49.8% |
| Currently Married | 57.0% | 66.2% | 48.0% |
| Married but Separated | 0.0% | 0.9% | 1.8% |
| Single Population | 43.0% | 32.9% | 50.2% |
| Never Married | 12.1% | 20.9% | 33.8% |
| Divorced | 20.0% | 8.2% | 10.8% |
| Widowed | 11.0% | 3.8% | 5.6% |
| space5 | | | |
| Household Size | 1.95 | 2.56 | 2.60 |
| Households | 580 | 848 | 124,010,992 |
| Family Households | 310 | 642 | 80,755,759 |
| Married couple, w/children | 27.4% | 23.7% | 30.5% |
| Married couple, no children | 69.0% | 68.4% | 42.9% |
| Non Family Households | 270 | 206 | 43,255,233 |
| Single householder, w/children | 0.0% | 7.3% | 15.8% |
| Single householder, no children | 3.5% | 0.6% | 10.8% |