21737 can be classified socioeconomically as Upper 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 21737 is White. The majority race/ethnicity attending public schools in 21737 is White. The current unemployment level in 21737 is 4.4%.
| Population | 2,406 |
| Population Growth Rate | 0.00% |
| Population Density | 469 People per Square Mile |
| Total Households | 375 |
| Percentage High Income Households | 23.7% |
| Median Household Income (2021) | $250,001 |
| Average Adjusted Gross Income (2021) | $498,740 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 90.43% |
| Public School Majority Race/Ethnicty | White - 70.31% |
21737 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 2,117 | 90.43% |
| Black | 4 | 0.17% |
| Hispanic | 31 | 1.32% |
| Asian | 189 | 8.07% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21737 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 888 | 74.12% |
| Black | 52 | 4.34% |
| Hispanic | 77 | 6.43% |
| Asian | 179 | 14.94% |
| Native American | 2 | 0.17% |
| Hawaiian/Pac. Islander | 0 | 0% |
21737 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 19 | 2.97% |
| Bachelor Degree | 250 | 39.06% |
| High School Diploma | 81 | 12.66% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 0 | 0% |
| 1 or More Years of College | 17 | 2.66% |
| Associates Degree | 0 | 0% |
| Masters Degree | 220 | 34.38% |
| Professional Degree | 18 | 2.81% |
| Doctorate Degree | 35 | 5.47% |