| | Amelia, LA | Avondale, LA | United States |
| Population | 1,995 | 4,969 | 329,725,481 |
| Female Population | 51.7% | 49.3% | 50.5% |
| Male Population | 48.3% | 50.8% | 49.5% |
| Median Age | 31.5 | 36.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,025 | 5,132 | 309,327,143 |
| Population - 2000 | 2,423 | 5,441 | 285,036,114 |
| Population - 1990 | 2,447 | 5,813 | 251,960,433 |
| Pop. 2000 to Now | -29.3% | -4.6% | 15.6% |
| Pop. 1990 to Now | -30.0% | -10.7% | 30.8% |
| space4 | | | |
| Population Density | 791.4 | 894.2 | 93.4 |
| Land Area | 2.5 | 5.6 | 3,531,905.4 |
| Water Area | 0.3 | 0.4 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Amelia, LA | Avondale, LA | United States |
| Age 0 to 4 | 8.1% | 7.7% | 5.9% |
| Age 5 to 9 | 7.6% | 5.0% | 6.1% |
| Age 10 to 14 | 5.6% | 8.2% | 6.6% |
| Age 15 to 17 | 4.1% | 3.9% | 3.9% |
| Age 18 to 20 | 6.4% | 1.3% | 4.0% |
| Age 21 to 24 | 7.6% | 8.4% | 5.2% |
| Age 25 to 34 | 12.7% | 13.6% | 13.8% |
| Age 35 to 44 | 11.8% | 14.9% | 12.9% |
| Age 45 to 54 | 15.0% | 8.0% | 12.6% |
| Age 55 to 59 | 5.6% | 9.8% | 6.7% |
| Age 60 to 64 | 3.2% | 4.5% | 6.3% |
| Age 65 to 74 | 6.3% | 8.8% | 9.6% |
| Age 75 to 84 | 4.0% | 5.0% | 4.5% |
| Age 85 and over | 2.0% | 0.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Amelia, LA | Avondale, LA | United States |
| White | 20.2% | 45.4% | 59.4% |
| Black | 7.7% | 33.4% | 12.2% |
| Asian | 16.5% | 11.8% | 5.6% |
| Native American | 0.7% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.8% | 1.7% | 3.2% |
| Hispanic | 54.1% | 7.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Amelia, LA | Avondale, LA | United States |
| Married Population | 53.0% | 45.4% | 49.8% |
| Currently Married | 51.1% | 39.6% | 48.0% |
| Married but Separated | 1.9% | 5.8% | 1.8% |
| Single Population | 47.0% | 54.6% | 50.2% |
| Never Married | 37.3% | 37.7% | 33.8% |
| Divorced | 5.8% | 11.5% | 10.8% |
| Widowed | 3.9% | 5.4% | 5.6% |
| space5 | | | |
| Household Size | 2.81 | 2.88 | 2.60 |
| Households | 711 | 1,727 | 124,010,992 |
| Family Households | 536 | 1,235 | 80,755,759 |
| Married couple, w/children | 21.6% | 24.7% | 30.5% |
| Married couple, no children | 41.6% | 35.9% | 42.9% |
| Non Family Households | 175 | 492 | 43,255,233 |
| Single householder, w/children | 22.8% | 22.8% | 15.8% |
| Single householder, no children | 14.0% | 16.7% | 10.8% |