| | Canyon Lake, TX | Blanco, TX | United States |
| Population | 30,641 | 2,086 | 329,725,481 |
| Female Population | 50.7% | 55.3% | 50.5% |
| Male Population | 49.3% | 44.7% | 49.5% |
| Median Age | 48.7 | 38.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 19,973 | 1,814 | 309,327,143 |
| Population - 2000 | 16,870 | 1,505 | 285,036,114 |
| Population - 1990 | 9,975 | 1,238 | 251,960,433 |
| Pop. 2000 to Now | 88.6% | 43.3% | 15.6% |
| Pop. 1990 to Now | 219.0% | 74.2% | 30.8% |
| space4 | | | |
| Population Density | 214.7 | 598.1 | 93.4 |
| Land Area | 142.7 | 3.5 | 3,531,905.4 |
| Water Area | 13.4 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Canyon Lake, TX | Blanco, TX | United States |
| Age 0 to 4 | 4.8% | 4.7% | 5.9% |
| Age 5 to 9 | 5.6% | 8.1% | 6.1% |
| Age 10 to 14 | 6.2% | 7.4% | 6.6% |
| Age 15 to 17 | 3.7% | 2.9% | 3.9% |
| Age 18 to 20 | 2.4% | 2.9% | 4.0% |
| Age 21 to 24 | 2.6% | 4.5% | 5.2% |
| Age 25 to 34 | 9.2% | 17.4% | 13.8% |
| Age 35 to 44 | 11.9% | 11.0% | 12.9% |
| Age 45 to 54 | 12.9% | 9.5% | 12.6% |
| Age 55 to 59 | 7.6% | 7.0% | 6.7% |
| Age 60 to 64 | 10.7% | 8.2% | 6.3% |
| Age 65 to 74 | 14.9% | 8.7% | 9.6% |
| Age 75 to 84 | 5.5% | 5.5% | 4.5% |
| Age 85 and over | 2.0% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Canyon Lake, TX | Blanco, TX | United States |
| White | 71.1% | 75.4% | 59.4% |
| Black | 1.9% | 0.0% | 12.2% |
| Asian | 0.6% | 0.6% | 5.6% |
| Native American | 0.1% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 1.6% | 0.0% | 0.4% |
| Two or More Races | 3.1% | 2.4% | 3.2% |
| Hispanic | 21.7% | 21.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Canyon Lake, TX | Blanco, TX | United States |
| Married Population | 66.4% | 45.4% | 49.8% |
| Currently Married | 65.2% | 40.7% | 48.0% |
| Married but Separated | 1.2% | 4.7% | 1.8% |
| Single Population | 33.6% | 54.6% | 50.2% |
| Never Married | 18.9% | 30.4% | 33.8% |
| Divorced | 9.3% | 19.0% | 10.8% |
| Widowed | 5.4% | 5.2% | 5.6% |
| space5 | | | |
| Household Size | 2.50 | 2.39 | 2.60 |
| Households | 12,269 | 861 | 124,010,992 |
| Family Households | 8,994 | 430 | 80,755,759 |
| Married couple, w/children | 28.4% | 27.0% | 30.5% |
| Married couple, no children | 57.0% | 34.7% | 42.9% |
| Non Family Households | 3,275 | 431 | 43,255,233 |
| Single householder, w/children | 8.1% | 27.9% | 15.8% |
| Single householder, no children | 6.5% | 10.5% | 10.8% |