| | Lanham, MD | Midlothian, MD | United States |
| Population | 11,460 | 367 | 329,725,481 |
| Female Population | 50.0% | 54.2% | 50.5% |
| Male Population | 50.0% | 45.8% | 49.5% |
| Median Age | 38.6 | 50.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 8,931 | 271 | 309,327,143 |
| Population - 2000 | 9,115 | 252 | 285,036,114 |
| Population - 1990 | 7,892 | 270 | 251,960,433 |
| Pop. 2000 to Now | 15.7% | 23.8% | 15.6% |
| Pop. 1990 to Now | 33.6% | 15.6% | 30.8% |
| space4 | | | |
| Population Density | 3,248.3 | 592.9 | 93.4 |
| Land Area | 3.5 | 0.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Lanham, MD | Midlothian, MD | United States |
| Age 0 to 4 | 4.0% | 0.0% | 5.9% |
| Age 5 to 9 | 6.7% | 3.5% | 6.1% |
| Age 10 to 14 | 8.4% | 8.7% | 6.6% |
| Age 15 to 17 | 5.2% | 6.8% | 3.9% |
| Age 18 to 20 | 3.8% | 2.5% | 4.0% |
| Age 21 to 24 | 5.0% | 1.9% | 5.2% |
| Age 25 to 34 | 13.1% | 4.6% | 13.8% |
| Age 35 to 44 | 11.3% | 7.9% | 12.9% |
| Age 45 to 54 | 16.8% | 14.7% | 12.6% |
| Age 55 to 59 | 6.3% | 2.5% | 6.7% |
| Age 60 to 64 | 5.3% | 2.5% | 6.3% |
| Age 65 to 74 | 8.8% | 34.1% | 9.6% |
| Age 75 to 84 | 3.6% | 10.4% | 4.5% |
| Age 85 and over | 1.7% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Lanham, MD | Midlothian, MD | United States |
| White | 8.6% | 98.4% | 59.4% |
| Black | 54.9% | 1.6% | 12.2% |
| Asian | 4.4% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 4.0% | 0.0% | 3.2% |
| Hispanic | 27.5% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Lanham, MD | Midlothian, MD | United States |
| Married Population | 44.5% | 55.6% | 49.8% |
| Currently Married | 41.8% | 54.7% | 48.0% |
| Married but Separated | 2.7% | 0.9% | 1.8% |
| Single Population | 55.5% | 44.4% | 50.2% |
| Never Married | 42.1% | 20.8% | 33.8% |
| Divorced | 8.3% | 6.2% | 10.8% |
| Widowed | 5.1% | 17.4% | 5.6% |
| space5 | | | |
| Household Size | 3.67 | 2.01 | 2.60 |
| Households | 3,119 | 183 | 124,010,992 |
| Family Households | 2,405 | 96 | 80,755,759 |
| Married couple, w/children | 29.1% | 29.2% | 30.5% |
| Married couple, no children | 32.8% | 60.4% | 42.9% |
| Non Family Households | 714 | 87 | 43,255,233 |
| Single householder, w/children | 22.0% | 0.0% | 15.8% |
| Single householder, no children | 16.1% | 10.4% | 10.8% |