21904 can be classified socioeconomically as 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 21904 is White. The majority race/ethnicity attending public schools in 21904 is White. The current unemployment level in 21904 is 4.4%.
| Population | 5,975 |
| Population Growth Rate | 0.00% |
| Population Density | 204 People per Square Mile |
| Total Households | 2,649 |
| Percentage High Income Households | 5.8% |
| Median Household Income (2021) | $88,657 |
| Average Adjusted Gross Income (2021) | $325,710 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 85.99% |
| Public School Majority Race/Ethnicty | White - 83.40% |
21904 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 5,616 | 85.99% |
| Black | 497 | 7.61% |
| Hispanic | 416 | 6.37% |
| Asian | 2 | 0.03% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21904 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 221 | 91.32% |
| Black | 12 | 4.96% |
| Hispanic | 8 | 3.31% |
| Asian | 0 | 0% |
| Native American | 1 | 0.41% |
| Hawaiian/Pac. Islander | 0 | 0% |
21904 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 400 | 9.24% |
| Bachelor Degree | 494 | 11.41% |
| High School Diploma | 1,595 | 36.83% |
| No High School Diploma | 171 | 3.95% |
| GED or Alternate | 305 | 7.04% |
| 1 or More Years of College | 739 | 17.06% |
| Associates Degree | 350 | 8.08% |
| Masters Degree | 225 | 5.2% |
| Professional Degree | 38 | 0.88% |
| Doctorate Degree | 14 | 0.32% |