| | Lake Riverside, CA | Canyon Lake, CA | United States |
| Population | 1,086 | 11,071 | 329,725,481 |
| Female Population | 54.5% | 49.5% | 50.5% |
| Male Population | 45.5% | 50.5% | 49.5% |
| Median Age | 48.1 | 42.1 | 38.4 |
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| Population - 2010 | 1,410 | 10,591 | 309,327,143 |
| Population - 2000 | 789 | 9,952 | 285,036,114 |
| Population - 1990 | 544 | 7,938 | 251,960,433 |
| Pop. 2000 to Now | 32.5% | 13.7% | 15.6% |
| Pop. 1990 to Now | 92.1% | 42.5% | 30.8% |
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| Population Density | 148.9 | 2,823.5 | 93.4 |
| Land Area | 7.3 | 3.9 | 3,531,905.4 |
| Water Area | 0.1 | 0.7 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Lake Riverside, CA | Canyon Lake, CA | United States |
| Age 0 to 4 | 6.4% | 3.9% | 5.9% |
| Age 5 to 9 | 7.2% | 8.6% | 6.1% |
| Age 10 to 14 | 4.7% | 6.5% | 6.6% |
| Age 15 to 17 | 1.3% | 2.8% | 3.9% |
| Age 18 to 20 | 2.2% | 2.7% | 4.0% |
| Age 21 to 24 | 2.1% | 3.3% | 5.2% |
| Age 25 to 34 | 14.3% | 12.2% | 13.8% |
| Age 35 to 44 | 10.2% | 13.7% | 12.9% |
| Age 45 to 54 | 10.1% | 14.9% | 12.6% |
| Age 55 to 59 | 6.4% | 6.5% | 6.7% |
| Age 60 to 64 | 5.2% | 7.2% | 6.3% |
| Age 65 to 74 | 21.9% | 10.9% | 9.6% |
| Age 75 to 84 | 8.0% | 5.1% | 4.5% |
| Age 85 and over | 0.0% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Lake Riverside, CA | Canyon Lake, CA | United States |
| White | 71.5% | 74.9% | 59.4% |
| Black | 0.0% | 1.2% | 12.2% |
| Asian | 2.0% | 2.9% | 5.6% |
| Native American | 0.0% | 1.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.6% | 0.4% |
| Two or More Races | 1.8% | 5.8% | 3.2% |
| Hispanic | 24.6% | 13.5% | 18.4% |
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| Marriage & Family | | | |
| | Lake Riverside, CA | Canyon Lake, CA | United States |
| Married Population | 67.7% | 61.2% | 49.8% |
| Currently Married | 67.7% | 59.6% | 48.0% |
| Married but Separated | 0.0% | 1.6% | 1.8% |
| Single Population | 32.3% | 38.8% | 50.2% |
| Never Married | 20.9% | 22.4% | 33.8% |
| Divorced | 9.3% | 11.3% | 10.8% |
| Widowed | 2.0% | 5.1% | 5.6% |
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| Household Size | 2.94 | 2.78 | 2.60 |
| Households | 369 | 3,979 | 124,010,992 |
| Family Households | 358 | 3,042 | 80,755,759 |
| Married couple, w/children | 22.6% | 35.6% | 30.5% |
| Married couple, no children | 62.6% | 47.8% | 42.9% |
| Non Family Households | 11 | 937 | 43,255,233 |
| Single householder, w/children | 1.7% | 9.1% | 15.8% |
| Single householder, no children | 13.1% | 7.6% | 10.8% |