| | Hamburg, AR | Eudora, AR | United States |
| Population | 2,649 | 2,251 | 329,725,481 |
| Female Population | 50.6% | 51.6% | 50.5% |
| Male Population | 49.4% | 48.4% | 49.5% |
| Median Age | 40 | 38.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,874 | 2,269 | 309,327,143 |
| Population - 2000 | 3,039 | 2,819 | 285,036,114 |
| Population - 1990 | 3,098 | 3,155 | 251,960,433 |
| Pop. 2000 to Now | -16.3% | -33.7% | 15.6% |
| Pop. 1990 to Now | -17.9% | -40.8% | 30.8% |
| space4 | | | |
| Population Density | 771.2 | 727.8 | 93.4 |
| Land Area | 3.4 | 3.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hamburg, AR | Eudora, AR | United States |
| Age 0 to 4 | 3.8% | 4.9% | 5.9% |
| Age 5 to 9 | 8.0% | 9.2% | 6.1% |
| Age 10 to 14 | 8.2% | 7.8% | 6.6% |
| Age 15 to 17 | 4.0% | 2.8% | 3.9% |
| Age 18 to 20 | 7.9% | 4.3% | 4.0% |
| Age 21 to 24 | 4.4% | 1.4% | 5.2% |
| Age 25 to 34 | 4.5% | 9.7% | 13.8% |
| Age 35 to 44 | 16.7% | 11.6% | 12.9% |
| Age 45 to 54 | 14.3% | 10.6% | 12.6% |
| Age 55 to 59 | 5.5% | 12.1% | 6.7% |
| Age 60 to 64 | 10.5% | 7.5% | 6.3% |
| Age 65 to 74 | 7.2% | 8.8% | 9.6% |
| Age 75 to 84 | 3.1% | 7.4% | 4.5% |
| Age 85 and over | 2.0% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hamburg, AR | Eudora, AR | United States |
| White | 61.8% | 6.4% | 59.4% |
| Black | 27.6% | 92.2% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 1.0% | 0.0% | 0.4% |
| Two or More Races | 0.8% | 1.3% | 3.2% |
| Hispanic | 8.6% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Hamburg, AR | Eudora, AR | United States |
| Married Population | 49.5% | 29.4% | 49.8% |
| Currently Married | 48.0% | 27.5% | 48.0% |
| Married but Separated | 1.5% | 1.9% | 1.8% |
| Single Population | 50.5% | 70.6% | 50.2% |
| Never Married | 30.9% | 40.8% | 33.8% |
| Divorced | 12.5% | 15.9% | 10.8% |
| Widowed | 7.1% | 13.9% | 5.6% |
| space5 | | | |
| Household Size | 2.56 | 2.34 | 2.60 |
| Households | 1,013 | 960 | 124,010,992 |
| Family Households | 616 | 515 | 80,755,759 |
| Married couple, w/children | 31.5% | 12.2% | 30.5% |
| Married couple, no children | 45.6% | 29.3% | 42.9% |
| Non Family Households | 397 | 445 | 43,255,233 |
| Single householder, w/children | 15.3% | 35.0% | 15.8% |
| Single householder, no children | 7.6% | 23.5% | 10.8% |