| | Hebron, MD | Chester, MD | United States |
| Population | 1,108 | 4,371 | 329,725,481 |
| Female Population | 54.5% | 53.1% | 50.5% |
| Male Population | 45.5% | 47.0% | 49.5% |
| Median Age | 36.9 | 43.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,082 | 4,142 | 309,327,143 |
| Population - 2000 | 807 | 3,723 | 285,036,114 |
| Population - 1990 | 665 | 2,643 | 251,960,433 |
| Pop. 2000 to Now | 35.8% | 37.5% | 15.6% |
| Pop. 1990 to Now | 64.8% | 93.7% | 30.8% |
| space4 | | | |
| Population Density | 844.5 | 834.6 | 93.4 |
| Land Area | 1.3 | 5.2 | 3,531,905.4 |
| Water Area | 0.0 | 1.7 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hebron, MD | Chester, MD | United States |
| Age 0 to 4 | 6.0% | 8.8% | 5.9% |
| Age 5 to 9 | 6.2% | 5.7% | 6.1% |
| Age 10 to 14 | 7.1% | 2.5% | 6.6% |
| Age 15 to 17 | 3.5% | 1.7% | 3.9% |
| Age 18 to 20 | 6.9% | 3.4% | 4.0% |
| Age 21 to 24 | 5.6% | 3.9% | 5.2% |
| Age 25 to 34 | 13.1% | 14.0% | 13.8% |
| Age 35 to 44 | 11.6% | 10.5% | 12.9% |
| Age 45 to 54 | 10.7% | 9.3% | 12.6% |
| Age 55 to 59 | 5.7% | 9.8% | 6.7% |
| Age 60 to 64 | 4.4% | 12.2% | 6.3% |
| Age 65 to 74 | 10.9% | 12.4% | 9.6% |
| Age 75 to 84 | 6.7% | 4.2% | 4.5% |
| Age 85 and over | 1.5% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hebron, MD | Chester, MD | United States |
| White | 75.3% | 85.5% | 59.4% |
| Black | 14.8% | 5.3% | 12.2% |
| Asian | 0.3% | 0.7% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.6% | 3.0% | 3.2% |
| Hispanic | 8.0% | 5.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Hebron, MD | Chester, MD | United States |
| Married Population | 50.5% | 52.7% | 49.8% |
| Currently Married | 42.9% | 50.2% | 48.0% |
| Married but Separated | 7.6% | 2.6% | 1.8% |
| Single Population | 49.5% | 47.3% | 50.2% |
| Never Married | 31.0% | 29.8% | 33.8% |
| Divorced | 16.0% | 14.5% | 10.8% |
| Widowed | 2.5% | 2.9% | 5.6% |
| space5 | | | |
| Household Size | 2.59 | 2.39 | 2.60 |
| Households | 428 | 1,828 | 124,010,992 |
| Family Households | 336 | 1,136 | 80,755,759 |
| Married couple, w/children | 18.5% | 25.7% | 30.5% |
| Married couple, no children | 36.0% | 48.2% | 42.9% |
| Non Family Households | 92 | 692 | 43,255,233 |
| Single householder, w/children | 21.4% | 12.5% | 15.8% |
| Single householder, no children | 24.1% | 13.6% | 10.8% |