| | Bucoda, WA | Onalaska, WA | United States |
| Population | 557 | 548 | 329,725,481 |
| Female Population | 49.9% | 62.0% | 50.5% |
| Male Population | 50.1% | 38.0% | 49.5% |
| Median Age | 38.6 | 35.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 562 | 712 | 309,327,143 |
| Population - 2000 | 628 | 490 | 285,036,114 |
| Population - 1990 | 536 | 429 | 251,960,433 |
| Pop. 2000 to Now | -5.9% | 57.4% | 15.6% |
| Pop. 1990 to Now | 10.3% | 79.7% | 30.8% |
| space4 | | | |
| Population Density | 992.9 | 344.0 | 93.4 |
| Land Area | 0.6 | 1.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Bucoda, WA | Onalaska, WA | United States |
| Age 0 to 4 | 8.1% | 9.5% | 5.9% |
| Age 5 to 9 | 7.0% | 0.0% | 6.1% |
| Age 10 to 14 | 8.6% | 12.6% | 6.6% |
| Age 15 to 17 | 1.4% | 0.0% | 3.9% |
| Age 18 to 20 | 1.4% | 0.0% | 4.0% |
| Age 21 to 24 | 2.9% | 13.1% | 5.2% |
| Age 25 to 34 | 15.6% | 9.5% | 13.8% |
| Age 35 to 44 | 19.7% | 15.9% | 12.9% |
| Age 45 to 54 | 8.6% | 0.7% | 12.6% |
| Age 55 to 59 | 4.0% | 1.6% | 6.7% |
| Age 60 to 64 | 4.7% | 17.7% | 6.3% |
| Age 65 to 74 | 10.8% | 9.5% | 9.6% |
| Age 75 to 84 | 7.2% | 9.9% | 4.5% |
| Age 85 and over | 0.0% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Bucoda, WA | Onalaska, WA | United States |
| White | 87.8% | 88.7% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.5% | 0.0% | 5.6% |
| Native American | 0.5% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 1.1% | 0.0% | 0.4% |
| Two or More Races | 5.9% | 11.3% | 3.2% |
| Hispanic | 4.1% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Bucoda, WA | Onalaska, WA | United States |
| Married Population | 47.3% | 48.0% | 49.8% |
| Currently Married | 47.3% | 48.0% | 48.0% |
| Married but Separated | 0.0% | 0.0% | 1.8% |
| Single Population | 52.7% | 52.0% | 50.2% |
| Never Married | 36.2% | 14.5% | 33.8% |
| Divorced | 13.4% | 27.4% | 10.8% |
| Widowed | 3.1% | 10.1% | 5.6% |
| space5 | | | |
| Household Size | 2.99 | 3.24 | 2.60 |
| Households | 186 | 169 | 124,010,992 |
| Family Households | 145 | 132 | 80,755,759 |
| Married couple, w/children | 18.6% | 56.1% | 30.5% |
| Married couple, no children | 46.2% | 21.2% | 42.9% |
| Non Family Households | 41 | 37 | 43,255,233 |
| Single householder, w/children | 28.3% | 0.0% | 15.8% |
| Single householder, no children | 6.9% | 22.7% | 10.8% |