21638 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 21638 is White. The majority race/ethnicity attending public schools in 21638 is White. The current unemployment level in 21638 is 4.4%.
| Population | 5,064 |
| Population Growth Rate | -0.56% |
| Population Density | 336 People per Square Mile |
| Total Households | 1,766 |
| Percentage High Income Households | 13.8% |
| Median Household Income (2021) | $120,938 |
| Average Adjusted Gross Income (2021) | $455,150 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 89.65% |
| Public School Majority Race/Ethnicty | White - 69.25% |
21638 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 4,201 | 89.44% |
| Black | 374 | 7.96% |
| Hispanic | 111 | 2.36% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 11 | 0.23% |
21638 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 295 | 74.49% |
| Black | 41 | 10.35% |
| Hispanic | 55 | 13.89% |
| Asian | 5 | 1.26% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21638 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 282 | 8.6% |
| Bachelor Degree | 702 | 21.42% |
| High School Diploma | 1,062 | 32.4% |
| No High School Diploma | 15 | 0.46% |
| GED or Alternate | 200 | 6.1% |
| 1 or More Years of College | 355 | 10.83% |
| Associates Degree | 256 | 7.81% |
| Masters Degree | 290 | 8.85% |
| Professional Degree | 96 | 2.93% |
| Doctorate Degree | 20 | 0.61% |