| | Cascade, ID | Kelseyville, CA | United States |
| Population | 1,101 | 3,873 | 329,725,481 |
| Female Population | 52.3% | 45.8% | 50.5% |
| Male Population | 47.7% | 54.2% | 49.5% |
| Median Age | 53 | 29.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 931 | 3,126 | 309,327,143 |
| Population - 2000 | 997 | 2,928 | 285,036,114 |
| Population - 1990 | 877 | 2,861 | 251,960,433 |
| Pop. 2000 to Now | 5.6% | 25.0% | 15.6% |
| Pop. 1990 to Now | 20.1% | 27.9% | 30.8% |
| space4 | | | |
| Population Density | 267.6 | 1,342.5 | 93.4 |
| Land Area | 4.1 | 2.9 | 3,531,905.4 |
| Water Area | 0.6 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Cascade, ID | Kelseyville, CA | United States |
| Age 0 to 4 | 6.9% | 15.7% | 5.9% |
| Age 5 to 9 | 3.5% | 9.6% | 6.1% |
| Age 10 to 14 | 3.1% | 7.0% | 6.6% |
| Age 15 to 17 | 3.2% | 1.5% | 3.9% |
| Age 18 to 20 | 10.4% | 0.8% | 4.0% |
| Age 21 to 24 | 0.0% | 4.3% | 5.2% |
| Age 25 to 34 | 3.5% | 17.9% | 13.8% |
| Age 35 to 44 | 7.2% | 10.0% | 12.9% |
| Age 45 to 54 | 18.9% | 6.0% | 12.6% |
| Age 55 to 59 | 6.5% | 5.1% | 6.7% |
| Age 60 to 64 | 4.3% | 3.4% | 6.3% |
| Age 65 to 74 | 21.9% | 9.6% | 9.6% |
| Age 75 to 84 | 6.6% | 7.0% | 4.5% |
| Age 85 and over | 4.1% | 1.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Cascade, ID | Kelseyville, CA | United States |
| White | 87.7% | 33.1% | 59.4% |
| Black | 0.4% | 1.6% | 12.2% |
| Asian | 0.0% | 0.0% | 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 | 0.6% | 0.0% | 3.2% |
| Hispanic | 11.3% | 65.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Cascade, ID | Kelseyville, CA | United States |
| Married Population | 48.4% | 49.4% | 49.8% |
| Currently Married | 48.3% | 44.7% | 48.0% |
| Married but Separated | 0.1% | 4.8% | 1.8% |
| Single Population | 51.6% | 50.6% | 50.2% |
| Never Married | 23.5% | 31.0% | 33.8% |
| Divorced | 18.5% | 14.7% | 10.8% |
| Widowed | 9.6% | 4.9% | 5.6% |
| space5 | | | |
| Household Size | 3.15 | 2.82 | 2.60 |
| Households | 329 | 1,372 | 124,010,992 |
| Family Households | 197 | 893 | 80,755,759 |
| Married couple, w/children | 17.8% | 35.1% | 30.5% |
| Married couple, no children | 76.7% | 24.4% | 42.9% |
| Non Family Households | 132 | 479 | 43,255,233 |
| Single householder, w/children | 3.0% | 22.5% | 15.8% |
| Single householder, no children | 2.5% | 18.0% | 10.8% |