| | Waimea (Hawaii County), HI | United States, HI |
| Population | 10,422 | 329,725,481 |
| Female Population | 53.3% | 50.5% |
| Male Population | 46.7% | 49.5% |
| Median Age | 40.1 | 38.4 |
| space3 | | |
| Population - 2010 | 9,776 | 309,327,143 |
| Population - 2000 | 7,028 | 285,036,114 |
| Population - 1990 | 5,972 | 251,960,433 |
| Pop. 2000 to Now | 78.0% | 15.6% |
| Pop. 1990 to Now | 109.5% | 30.8% |
| space4 | | |
| Population Density | 265.3 | 93.4 |
| Land Area | 39.3 | 3,531,905.4 |
| Water Area | 0.0 | 264,836.8 |
| space | | |
| Est. Total Population By Age | | |
| | Waimea (Hawaii County), HI | Waimea (Hawaii County), HI |
| Age 0 to 4 | 5.6% | 5.9% |
| Age 5 to 9 | 5.0% | 6.1% |
| Age 10 to 14 | 5.9% | 6.6% |
| Age 15 to 17 | 6.3% | 3.9% |
| Age 18 to 20 | 1.7% | 4.0% |
| Age 21 to 24 | 3.7% | 5.2% |
| Age 25 to 34 | 13.1% | 13.8% |
| Age 35 to 44 | 15.1% | 12.9% |
| Age 45 to 54 | 14.6% | 12.6% |
| Age 55 to 59 | 6.7% | 6.7% |
| Age 60 to 64 | 4.5% | 6.3% |
| Age 65 to 74 | 11.6% | 9.6% |
| Age 75 to 84 | 5.1% | 4.5% |
| Age 85 and over | 1.1% | 1.9% |
| space1 | | |
| Race | | |
| | Waimea (Hawaii County), HI | Waimea (Hawaii County), HI |
| White | 21.3% | 59.4% |
| Black | 0.0% | 12.2% |
| Asian | 25.5% | 5.6% |
| Native American | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 17.4% | 0.2% |
| Other | 0.0% | 0.4% |
| Two or More Races | 29.4% | 3.2% |
| Hispanic | 6.2% | 18.4% |
| space2 | | |
| Marriage & Family | | |
| | Waimea (Hawaii County), HI | Waimea (Hawaii County), HI |
| Married Population | 54.2% | 49.8% |
| Currently Married | 53.6% | 48.0% |
| Married but Separated | 0.5% | 1.8% |
| Single Population | 45.8% | 50.2% |
| Never Married | 31.9% | 33.8% |
| Divorced | 9.8% | 10.8% |
| Widowed | 4.1% | 5.6% |
| space5 | | |
| Household Size | 2.96 | 2.60 |
| Households | 3,462 | 124,010,992 |
| Family Households | 2,376 | 80,755,759 |
| Married couple, w/children | 40.1% | 30.5% |
| Married couple, no children | 38.1% | 42.9% |
| Non Family Households | 1,086 | 43,255,233 |
| Single householder, w/children | 11.8% | 15.8% |
| Single householder, no children | 9.9% | 10.8% |