| PEOPLE | Slidell | Metairie | United States |
| Population | 27,068 | 138,481 | 308,035,306 |
| Pop. Density | 1,824 | 5,963 | 87 |
| Pop. Change | 5.56% | -5.89% | 8.07% |
| Median Age | 37.2 | 41.1 | 37.3 |
| Households | 10,050 | 59,915 | 116,716,292 |
| Household Size | 2.65 | 2.3 | 2.58 |
| Male Population | 48.48% | 48.68% | 49.27% |
| Female Population | 51.52% | 51.32% | 50.96% |
| Married Population | 52.02% | 41.94% | 47.02% |
| Single Population | 47.98% | 58.06% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.05% | 5.93% | 6.56% |
| Age 5 to 9 | 6.92% | 5.24% | 6.61% |
| Age 10 to 14 | 7.00% | 5.09% | 6.71% |
| Age 15 to 17 | 4.50% | 3.19% | 4.21% |
| Age 18 to 20 | 2.49% | 1.93% | 2.95% |
| Age 21 to 24 | 6.05% | 6.58% | 7.01% |
| Age 25 to 34 | 13.22% | 14.68% | 13.33% |
| Age 35 to 44 | 12.72% | 12.21% | 13.33% |
| Age 45 to 49 | 14.20% | 14.72% | 14.61% |
| Age 50 to 54 | 14.20% | 14.72% | 14.61% |
| Age 55 to 59 | 11.87% | 13.30% | 11.84% |
| Age 60 to 64 | 11.87% | 13.30% | 11.84% |
| Age 65 to 74 | 7.22% | 8.35% | 7.05% |
| Age 75 to 84 | 4.78% | 6.13% | 4.24% |
| Age 85 and over | 1.98% | 2.65% | 1.78% |
| RACE | | | |
| White | 75.95% | 80.03% | 72.41% |
| Black | 17.00% | 10.38% | 12.61% |
| Asian | 1.56% | 3.25% | 4.75% |
| American Indian | 0.47% | 0.30% | 0.95% |
| Other | 5.02% | 6.03% | 9.28% |
| Hispanic | 0.82% | 0.00% | 16.35% |
| Non-Hispanic | 99.18% | 100.00% | 83.65% |
| FAMILY | | | |
| Married, w/children | 28.13% | 24.92% | 30.42% |
| Married, no children | 40.71% | 44.07% | 42.46% |
| Single, w/children | 16.28% | 13.61% | 14.39% |
| Single, no children | 14.88% | 17.40% | 12.73% |
| Divorced | 10.33% | 13.87% | 10.62% |
| Separated | 3.31% | 3.55% | 4.97% |
| Widowed | 7.16% | 9.91% | 6.14% |
| Now Married | 51.64% | 42.24% | 46.32% |
| Never Married | 27.57% | 30.43% | 31.95% |