| | Chalmette, LA | Crockett, CA | United States |
| Population | 21,981 | 3,405 | 329,725,481 |
| Female Population | 50.2% | 53.7% | 50.5% |
| Male Population | 49.8% | 46.3% | 49.5% |
| Median Age | 33.7 | 47 | 38.4 |
| space3 | | | |
| Population - 2010 | 12,453 | 3,298 | 309,327,143 |
| Population - 2000 | 32,069 | 3,194 | 285,036,114 |
| Population - 1990 | 31,860 | 3,228 | 251,960,433 |
| Pop. 2000 to Now | -25.1% | 0.9% | 15.6% |
| Pop. 1990 to Now | -24.6% | -0.2% | 30.8% |
| space4 | | | |
| Population Density | 3,064.0 | 3,206.2 | 93.4 |
| Land Area | 7.2 | 1.1 | 3,531,905.4 |
| Water Area | 0.8 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Chalmette, LA | Crockett, CA | United States |
| Age 0 to 4 | 7.4% | 3.1% | 5.9% |
| Age 5 to 9 | 8.5% | 4.4% | 6.1% |
| Age 10 to 14 | 7.3% | 4.2% | 6.6% |
| Age 15 to 17 | 4.3% | 4.4% | 3.9% |
| Age 18 to 20 | 3.1% | 3.1% | 4.0% |
| Age 21 to 24 | 5.2% | 2.8% | 5.2% |
| Age 25 to 34 | 17.0% | 10.5% | 13.8% |
| Age 35 to 44 | 14.1% | 15.4% | 12.9% |
| Age 45 to 54 | 11.2% | 14.9% | 12.6% |
| Age 55 to 59 | 5.3% | 10.4% | 6.7% |
| Age 60 to 64 | 6.0% | 8.6% | 6.3% |
| Age 65 to 74 | 6.8% | 11.7% | 9.6% |
| Age 75 to 84 | 2.0% | 4.1% | 4.5% |
| Age 85 and over | 1.7% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Chalmette, LA | Crockett, CA | United States |
| White | 60.1% | 63.5% | 59.4% |
| Black | 25.6% | 9.5% | 12.2% |
| Asian | 2.7% | 3.3% | 5.6% |
| Native American | 0.3% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.1% | 0.4% | 0.4% |
| Two or More Races | 2.5% | 2.4% | 3.2% |
| Hispanic | 8.7% | 20.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Chalmette, LA | Crockett, CA | United States |
| Married Population | 40.1% | 43.1% | 49.8% |
| Currently Married | 36.9% | 42.0% | 48.0% |
| Married but Separated | 3.2% | 1.1% | 1.8% |
| Single Population | 59.9% | 56.9% | 50.2% |
| Never Married | 40.1% | 34.2% | 33.8% |
| Divorced | 13.4% | 16.2% | 10.8% |
| Widowed | 6.5% | 6.5% | 5.6% |
| space5 | | | |
| Household Size | 2.79 | 2.25 | 2.60 |
| Households | 7,795 | 1,516 | 124,010,992 |
| Family Households | 5,286 | 777 | 80,755,759 |
| Married couple, w/children | 24.5% | 33.5% | 30.5% |
| Married couple, no children | 30.1% | 45.0% | 42.9% |
| Non Family Households | 2,509 | 739 | 43,255,233 |
| Single householder, w/children | 31.5% | 8.9% | 15.8% |
| Single householder, no children | 13.9% | 12.6% | 10.8% |