| | Omao, HI | Hanamaulu, HI | United States |
| Population | 1,459 | 4,435 | 329,725,481 |
| Female Population | 54.6% | 50.7% | 50.5% |
| Male Population | 45.4% | 49.3% | 49.5% |
| Median Age | 45.5 | 38.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,385 | 3,891 | 309,327,143 |
| Population - 2000 | 1,221 | 3,272 | 285,036,114 |
| Population - 1990 | 1,142 | 3,611 | 251,960,433 |
| Pop. 2000 to Now | 12.0% | 66.5% | 15.6% |
| Pop. 1990 to Now | 19.7% | 50.8% | 30.8% |
| space4 | | | |
| Population Density | 1,150.6 | 3,486.6 | 93.4 |
| Land Area | 1.3 | 1.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Omao, HI | Hanamaulu, HI | United States |
| Age 0 to 4 | 8.4% | 4.9% | 5.9% |
| Age 5 to 9 | 4.6% | 5.6% | 6.1% |
| Age 10 to 14 | 5.8% | 8.1% | 6.6% |
| Age 15 to 17 | 2.3% | 3.6% | 3.9% |
| Age 18 to 20 | 1.9% | 3.1% | 4.0% |
| Age 21 to 24 | 4.5% | 5.5% | 5.2% |
| Age 25 to 34 | 14.6% | 13.5% | 13.8% |
| Age 35 to 44 | 6.9% | 16.1% | 12.9% |
| Age 45 to 54 | 16.8% | 11.6% | 12.6% |
| Age 55 to 59 | 5.1% | 6.7% | 6.7% |
| Age 60 to 64 | 6.7% | 4.4% | 6.3% |
| Age 65 to 74 | 15.9% | 9.7% | 9.6% |
| Age 75 to 84 | 3.0% | 6.0% | 4.5% |
| Age 85 and over | 3.5% | 1.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Omao, HI | Hanamaulu, HI | United States |
| White | 49.3% | 5.5% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 14.0% | 47.4% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 7.4% | 7.3% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 15.4% | 28.7% | 3.2% |
| Hispanic | 14.0% | 10.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Omao, HI | Hanamaulu, HI | United States |
| Married Population | 48.1% | 46.8% | 49.8% |
| Currently Married | 46.3% | 46.6% | 48.0% |
| Married but Separated | 1.8% | 0.2% | 1.8% |
| Single Population | 51.9% | 53.2% | 50.2% |
| Never Married | 27.1% | 35.9% | 33.8% |
| Divorced | 18.5% | 10.5% | 10.8% |
| Widowed | 6.3% | 6.8% | 5.6% |
| space5 | | | |
| Household Size | 2.85 | 3.99 | 2.60 |
| Households | 489 | 1,104 | 124,010,992 |
| Family Households | 345 | 916 | 80,755,759 |
| Married couple, w/children | 28.1% | 27.9% | 30.5% |
| Married couple, no children | 39.4% | 40.6% | 42.9% |
| Non Family Households | 144 | 188 | 43,255,233 |
| Single householder, w/children | 24.9% | 17.7% | 15.8% |
| Single householder, no children | 7.5% | 13.8% | 10.8% |