| | Hydesville, CA | Blue Lake, CA | United States |
| Population | 1,118 | 927 | 329,725,481 |
| Female Population | 49.7% | 55.8% | 50.5% |
| Male Population | 50.3% | 44.2% | 49.5% |
| Median Age | 57.8 | 55.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,197 | 1,254 | 309,327,143 |
| Population - 2000 | 1,209 | 1,135 | 285,036,114 |
| Population - 1990 | 1,131 | 1,235 | 251,960,433 |
| Pop. 2000 to Now | -17.0% | 9.6% | 15.6% |
| Pop. 1990 to Now | -11.3% | 0.7% | 30.8% |
| space4 | | | |
| Population Density | 149.1 | 1,563.2 | 93.4 |
| Land Area | 7.5 | 0.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hydesville, CA | Blue Lake, CA | United States |
| Age 0 to 4 | 1.8% | 5.9% | 5.9% |
| Age 5 to 9 | 2.0% | 4.4% | 6.1% |
| Age 10 to 14 | 8.9% | 1.1% | 6.6% |
| Age 15 to 17 | 2.0% | 0.0% | 3.9% |
| Age 18 to 20 | 1.2% | 0.2% | 4.0% |
| Age 21 to 24 | 1.1% | 1.5% | 5.2% |
| Age 25 to 34 | 3.3% | 21.5% | 13.8% |
| Age 35 to 44 | 11.5% | 8.8% | 12.9% |
| Age 45 to 54 | 14.7% | 6.1% | 12.6% |
| Age 55 to 59 | 8.6% | 6.1% | 6.7% |
| Age 60 to 64 | 20.6% | 17.9% | 6.3% |
| Age 65 to 74 | 19.4% | 21.5% | 9.6% |
| Age 75 to 84 | 4.7% | 3.6% | 4.5% |
| Age 85 and over | 0.4% | 1.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hydesville, CA | Blue Lake, CA | United States |
| White | 86.4% | 79.8% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.8% | 4.9% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.1% | 0.2% | 0.4% |
| Two or More Races | 2.3% | 9.8% | 3.2% |
| Hispanic | 10.4% | 5.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Hydesville, CA | Blue Lake, CA | United States |
| Married Population | 54.4% | 45.7% | 49.8% |
| Currently Married | 53.2% | 44.0% | 48.0% |
| Married but Separated | 1.1% | 1.7% | 1.8% |
| Single Population | 45.7% | 54.3% | 50.2% |
| Never Married | 20.3% | 29.2% | 33.8% |
| Divorced | 17.2% | 19.5% | 10.8% |
| Widowed | 8.2% | 5.6% | 5.6% |
| space5 | | | |
| Household Size | 2.37 | 1.90 | 2.60 |
| Households | 471 | 487 | 124,010,992 |
| Family Households | 299 | 238 | 80,755,759 |
| Married couple, w/children | 21.1% | 3.8% | 30.5% |
| Married couple, no children | 66.6% | 71.4% | 42.9% |
| Non Family Households | 172 | 249 | 43,255,233 |
| Single householder, w/children | 6.4% | 7.6% | 15.8% |
| Single householder, no children | 6.0% | 17.2% | 10.8% |