21738 can be classified socioeconomically as Upper 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 21738 is White. The majority race/ethnicity attending public schools in 21738 is White. The current unemployment level in 21738 is 4.4%.
| Population | 3,786 |
| Population Growth Rate | 0.00% |
| Population Density | 645 People per Square Mile |
| Total Households | 1,024 |
| Percentage High Income Households | 41.0% |
| Median Household Income (2021) | $230,250 |
| Average Adjusted Gross Income (2021) | $588,000 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 95.53% |
| Public School Majority Race/Ethnicty | White - 70.05% |
21738 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 3,845 | 95.53% |
| Black | 83 | 2.06% |
| Hispanic | 16 | 0.4% |
| Asian | 81 | 2.01% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21738 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 779 | 74.12% |
| Black | 60 | 5.71% |
| Hispanic | 69 | 6.57% |
| Asian | 139 | 13.23% |
| Native American | 2 | 0.19% |
| Hawaiian/Pac. Islander | 2 | 0.19% |
21738 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 73 | 3.42% |
| Bachelor Degree | 869 | 40.74% |
| High School Diploma | 389 | 18.24% |
| No High School Diploma | 15 | 0.7% |
| GED or Alternate | 36 | 1.69% |
| 1 or More Years of College | 274 | 12.85% |
| Associates Degree | 130 | 6.09% |
| Masters Degree | 305 | 14.3% |
| Professional Degree | 12 | 0.56% |
| Doctorate Degree | 30 | 1.41% |