| | Buhl, ID | Portola, CA | United States |
| Population | 4,532 | 2,204 | 329,725,481 |
| Female Population | 51.9% | 53.0% | 50.5% |
| Male Population | 48.1% | 47.0% | 49.5% |
| Median Age | 34.5 | 42.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,184 | 2,063 | 309,327,143 |
| Population - 2000 | 3,985 | 2,227 | 285,036,114 |
| Population - 1990 | 3,516 | 2,193 | 251,960,433 |
| Pop. 2000 to Now | 13.5% | -14.1% | 15.6% |
| Pop. 1990 to Now | 28.7% | -12.8% | 30.8% |
| space4 | | | |
| Population Density | 2,411.9 | 407.6 | 93.4 |
| Land Area | 1.9 | 5.4 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Buhl, ID | Portola, CA | United States |
| Age 0 to 4 | 5.9% | 10.3% | 5.9% |
| Age 5 to 9 | 7.5% | 8.7% | 6.1% |
| Age 10 to 14 | 9.8% | 5.6% | 6.6% |
| Age 15 to 17 | 5.4% | 2.3% | 3.9% |
| Age 18 to 20 | 3.4% | 2.6% | 4.0% |
| Age 21 to 24 | 4.8% | 2.3% | 5.2% |
| Age 25 to 34 | 14.3% | 8.3% | 13.8% |
| Age 35 to 44 | 9.6% | 14.1% | 12.9% |
| Age 45 to 54 | 12.3% | 11.6% | 12.6% |
| Age 55 to 59 | 4.8% | 9.2% | 6.7% |
| Age 60 to 64 | 5.3% | 6.9% | 6.3% |
| Age 65 to 74 | 8.8% | 12.6% | 9.6% |
| Age 75 to 84 | 5.5% | 4.2% | 4.5% |
| Age 85 and over | 2.7% | 1.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Buhl, ID | Portola, CA | United States |
| White | 58.2% | 74.9% | 59.4% |
| Black | 0.3% | 0.0% | 12.2% |
| Asian | 0.0% | 0.5% | 5.6% |
| Native American | 0.0% | 0.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.9% | 4.5% | 3.2% |
| Hispanic | 39.7% | 19.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Buhl, ID | Portola, CA | United States |
| Married Population | 48.9% | 48.0% | 49.8% |
| Currently Married | 47.8% | 44.6% | 48.0% |
| Married but Separated | 1.1% | 3.4% | 1.8% |
| Single Population | 51.1% | 52.0% | 50.2% |
| Never Married | 25.1% | 27.2% | 33.8% |
| Divorced | 17.5% | 16.9% | 10.8% |
| Widowed | 8.5% | 7.9% | 5.6% |
| space5 | | | |
| Household Size | 2.59 | 2.21 | 2.60 |
| Households | 1,738 | 981 | 124,010,992 |
| Family Households | 991 | 559 | 80,755,759 |
| Married couple, w/children | 42.2% | 22.7% | 30.5% |
| Married couple, no children | 33.4% | 46.0% | 42.9% |
| Non Family Households | 747 | 422 | 43,255,233 |
| Single householder, w/children | 17.8% | 26.1% | 15.8% |
| Single householder, no children | 6.7% | 5.2% | 10.8% |