| | Garyville, LA | Delcambre, LA | United States |
| Population | 2,102 | 2,279 | 329,725,481 |
| Female Population | 59.9% | 56.3% | 50.5% |
| Male Population | 40.1% | 43.8% | 49.5% |
| Median Age | 42.4 | 39.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,687 | 1,861 | 309,327,143 |
| Population - 2000 | 2,775 | 2,168 | 285,036,114 |
| Population - 1990 | 3,181 | 1,978 | 251,960,433 |
| Pop. 2000 to Now | -21.7% | -15.3% | 15.6% |
| Pop. 1990 to Now | -31.7% | -7.1% | 30.8% |
| space4 | | | |
| Population Density | 147.3 | 1,947.9 | 93.4 |
| Land Area | 14.3 | 1.2 | 3,531,905.4 |
| Water Area | 1.8 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Garyville, LA | Delcambre, LA | United States |
| Age 0 to 4 | 2.2% | 5.9% | 5.9% |
| Age 5 to 9 | 8.9% | 6.6% | 6.1% |
| Age 10 to 14 | 11.7% | 12.0% | 6.6% |
| Age 15 to 17 | 2.0% | 3.6% | 3.9% |
| Age 18 to 20 | 2.2% | 2.2% | 4.0% |
| Age 21 to 24 | 2.1% | 4.0% | 5.2% |
| Age 25 to 34 | 3.8% | 11.2% | 13.8% |
| Age 35 to 44 | 25.1% | 11.5% | 12.9% |
| Age 45 to 54 | 18.5% | 12.2% | 12.6% |
| Age 55 to 59 | 2.7% | 10.5% | 6.7% |
| Age 60 to 64 | 5.8% | 3.1% | 6.3% |
| Age 65 to 74 | 5.8% | 12.3% | 9.6% |
| Age 75 to 84 | 3.9% | 3.5% | 4.5% |
| Age 85 and over | 5.3% | 1.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Garyville, LA | Delcambre, LA | United States |
| White | 50.9% | 83.2% | 59.4% |
| Black | 48.0% | 8.1% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.6% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.1% | 4.7% | 3.2% |
| Hispanic | 0.0% | 3.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Garyville, LA | Delcambre, LA | United States |
| Married Population | 36.4% | 49.6% | 49.8% |
| Currently Married | 34.5% | 43.1% | 48.0% |
| Married but Separated | 1.9% | 6.5% | 1.8% |
| Single Population | 63.6% | 50.4% | 50.2% |
| Never Married | 24.9% | 20.4% | 33.8% |
| Divorced | 26.8% | 20.3% | 10.8% |
| Widowed | 11.9% | 9.6% | 5.6% |
| space5 | | | |
| Household Size | 3.06 | 3.01 | 2.60 |
| Households | 687 | 757 | 124,010,992 |
| Family Households | 403 | 537 | 80,755,759 |
| Married couple, w/children | 43.2% | 46.2% | 30.5% |
| Married couple, no children | 26.6% | 23.1% | 42.9% |
| Non Family Households | 284 | 220 | 43,255,233 |
| Single householder, w/children | 10.9% | 21.8% | 15.8% |
| Single householder, no children | 19.4% | 8.9% | 10.8% |