| | Vidalia, LA | Delhi, LA | United States |
| Population | 3,955 | 2,648 | 329,725,481 |
| Female Population | 50.7% | 48.4% | 50.5% |
| Male Population | 49.3% | 51.6% | 49.5% |
| Median Age | 39.9 | 41.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,283 | 2,942 | 309,327,143 |
| Population - 2000 | 4,543 | 3,066 | 285,036,114 |
| Population - 1990 | 4,953 | 3,169 | 251,960,433 |
| Pop. 2000 to Now | -19.3% | -10.2% | 15.6% |
| Pop. 1990 to Now | -26.0% | -13.1% | 30.8% |
| space4 | | | |
| Population Density | 1,524.7 | 922.0 | 93.4 |
| Land Area | 2.6 | 2.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Vidalia, LA | Delhi, LA | United States |
| Age 0 to 4 | 4.3% | 3.7% | 5.9% |
| Age 5 to 9 | 5.7% | 6.9% | 6.1% |
| Age 10 to 14 | 9.4% | 8.0% | 6.6% |
| Age 15 to 17 | 6.1% | 3.4% | 3.9% |
| Age 18 to 20 | 4.5% | 5.1% | 4.0% |
| Age 21 to 24 | 4.1% | 1.4% | 5.2% |
| Age 25 to 34 | 10.6% | 15.0% | 13.8% |
| Age 35 to 44 | 10.2% | 14.5% | 12.9% |
| Age 45 to 54 | 8.2% | 9.7% | 12.6% |
| Age 55 to 59 | 2.9% | 11.9% | 6.7% |
| Age 60 to 64 | 10.3% | 4.5% | 6.3% |
| Age 65 to 74 | 10.8% | 7.7% | 9.6% |
| Age 75 to 84 | 9.2% | 6.1% | 4.5% |
| Age 85 and over | 3.7% | 2.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Vidalia, LA | Delhi, LA | United States |
| White | 69.1% | 40.3% | 59.4% |
| Black | 30.4% | 55.6% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.9% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 1.3% | 3.2% |
| Hispanic | 0.5% | 2.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Vidalia, LA | Delhi, LA | United States |
| Married Population | 42.3% | 37.2% | 49.8% |
| Currently Married | 40.3% | 35.6% | 48.0% |
| Married but Separated | 2.0% | 1.6% | 1.8% |
| Single Population | 57.7% | 62.8% | 50.2% |
| Never Married | 31.8% | 44.3% | 33.8% |
| Divorced | 13.7% | 12.1% | 10.8% |
| Widowed | 12.2% | 6.4% | 5.6% |
| space5 | | | |
| Household Size | 2.67 | 2.64 | 2.60 |
| Households | 1,484 | 987 | 124,010,992 |
| Family Households | 932 | 635 | 80,755,759 |
| Married couple, w/children | 25.0% | 15.3% | 30.5% |
| Married couple, no children | 28.2% | 36.5% | 42.9% |
| Non Family Households | 552 | 352 | 43,255,233 |
| Single householder, w/children | 29.7% | 35.0% | 15.8% |
| Single householder, no children | 17.1% | 13.2% | 10.8% |