21140 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 21140 is White. The current unemployment level in 21140 is 4.4%.
| Population | 4,255 |
| Population Growth Rate | 27.05% |
| Population Density | 2,836 People per Square Mile |
| Total Households | 1,294 |
| Percentage High Income Households | 22.9% |
| Median Household Income (2021) | $131,382 |
| Average Adjusted Gross Income (2021) | $362,660 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 93.80% |
21140 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 3,934 | 93.8% |
| Black | 10 | 0.24% |
| Hispanic | 241 | 5.75% |
| Asian | 9 | 0.21% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21140 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 123 | 5.18% |
| Bachelor Degree | 606 | 25.54% |
| High School Diploma | 592 | 24.95% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 42 | 1.77% |
| 1 or More Years of College | 425 | 17.91% |
| Associates Degree | 117 | 4.93% |
| Masters Degree | 332 | 13.99% |
| Professional Degree | 92 | 3.88% |
| Doctorate Degree | 44 | 1.85% |