21837 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Maryland based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 21837 is White. The majority race/ethnicity attending public schools in 21837 is White. The current unemployment level in 21837 is 4.4%.
| Population | 3,165 |
| Population Growth Rate | 2.06% |
| Population Density | 64 People per Square Mile |
| Total Households | 967 |
| Percentage High Income Households | 5.6% |
| Median Household Income (2021) | $69,457 |
| Average Adjusted Gross Income (2021) | $418,370 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 64.21% |
| Public School Majority Race/Ethnicty | White - 76.78% |
21837 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 2,133 | 64.21% |
| Black | 807 | 24.29% |
| Hispanic | 358 | 10.78% |
| Asian | 24 | 0.72% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21837 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 754 | 83.59% |
| Black | 99 | 10.98% |
| Hispanic | 36 | 3.99% |
| Asian | 6 | 0.67% |
| Native American | 5 | 0.55% |
| Hawaiian/Pac. Islander | 2 | 0.22% |
21837 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 126 | 7.44% |
| Bachelor Degree | 147 | 8.68% |
| High School Diploma | 873 | 51.53% |
| No High School Diploma | 7 | 0.41% |
| GED or Alternate | 42 | 2.48% |
| 1 or More Years of College | 315 | 18.6% |
| Associates Degree | 75 | 4.43% |
| Masters Degree | 65 | 3.84% |
| Professional Degree | 44 | 2.6% |
| Doctorate Degree | 0 | 0% |