| | Luling, TX | Lockhart, TX | United States |
| Population | 5,411 | 14,480 | 329,725,481 |
| Female Population | 52.6% | 54.1% | 50.5% |
| Male Population | 47.4% | 45.9% | 49.5% |
| Median Age | 39.8 | 38.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 5,401 | 12,745 | 309,327,143 |
| Population - 2000 | 5,080 | 11,615 | 285,036,114 |
| Population - 1990 | 4,661 | 9,205 | 251,960,433 |
| Pop. 2000 to Now | 14.7% | 21.1% | 15.6% |
| Pop. 1990 to Now | 25.1% | 52.8% | 30.8% |
| space4 | | | |
| Population Density | 982.0 | 927.4 | 93.4 |
| Land Area | 5.5 | 15.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Luling, TX | Lockhart, TX | United States |
| Age 0 to 4 | 11.6% | 3.6% | 5.9% |
| Age 5 to 9 | 2.2% | 6.5% | 6.1% |
| Age 10 to 14 | 4.7% | 7.5% | 6.6% |
| Age 15 to 17 | 0.3% | 4.7% | 3.9% |
| Age 18 to 20 | 3.9% | 2.4% | 4.0% |
| Age 21 to 24 | 4.7% | 4.7% | 5.2% |
| Age 25 to 34 | 15.5% | 16.1% | 13.8% |
| Age 35 to 44 | 10.8% | 12.5% | 12.9% |
| Age 45 to 54 | 9.6% | 12.9% | 12.6% |
| Age 55 to 59 | 4.9% | 6.5% | 6.7% |
| Age 60 to 64 | 8.3% | 5.9% | 6.3% |
| Age 65 to 74 | 13.4% | 11.0% | 9.6% |
| Age 75 to 84 | 3.8% | 3.9% | 4.5% |
| Age 85 and over | 6.3% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Luling, TX | Lockhart, TX | United States |
| White | 30.0% | 37.4% | 59.4% |
| Black | 7.8% | 5.4% | 12.2% |
| Asian | 0.7% | 2.5% | 5.6% |
| Native American | 0.0% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 2.0% | 3.2% |
| Hispanic | 61.5% | 52.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Luling, TX | Lockhart, TX | United States |
| Married Population | 46.5% | 48.1% | 49.8% |
| Currently Married | 45.9% | 46.0% | 48.0% |
| Married but Separated | 0.6% | 2.1% | 1.8% |
| Single Population | 53.5% | 51.9% | 50.2% |
| Never Married | 31.7% | 32.9% | 33.8% |
| Divorced | 13.2% | 11.6% | 10.8% |
| Widowed | 8.6% | 7.4% | 5.6% |
| space5 | | | |
| Household Size | 2.65 | 2.85 | 2.60 |
| Households | 1,978 | 4,511 | 124,010,992 |
| Family Households | 1,418 | 3,011 | 80,755,759 |
| Married couple, w/children | 22.8% | 34.9% | 30.5% |
| Married couple, no children | 31.3% | 39.1% | 42.9% |
| Non Family Households | 560 | 1,500 | 43,255,233 |
| Single householder, w/children | 24.0% | 14.5% | 15.8% |
| Single householder, no children | 21.8% | 11.6% | 10.8% |