21911 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 21911 is White. The majority race/ethnicity attending public schools in 21911 is White. The current unemployment level in 21911 is 3.8%.
| Population | 10,804 |
| Population Growth Rate | 0.00% |
| Population Density | 292 People per Square Mile |
| Total Households | 3,999 |
| Percentage High Income Households | 2.8% |
| Median Household Income (2021) | $87,303 |
| Average Adjusted Gross Income (2021) | $298,200 |
| Current Unemployment Rate (September 2025) | 3.8% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 91.37% |
| Public School Majority Race/Ethnicty | White - 90.25% |
21911 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 10,054 | 91.37% |
| Black | 37 | 0.34% |
| Hispanic | 569 | 5.17% |
| Asian | 329 | 2.99% |
| Native American | 15 | 0.14% |
| Hawaiian/Pac. Islander | 0 | 0% |
21911 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 1,555 | 93.06% |
| Black | 4 | 0.24% |
| Hispanic | 102 | 6.1% |
| Asian | 6 | 0.36% |
| Native American | 4 | 0.24% |
| Hawaiian/Pac. Islander | 0 | 0% |
21911 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 659 | 10.17% |
| Bachelor Degree | 835 | 12.88% |
| High School Diploma | 2,550 | 39.34% |
| No High School Diploma | 17 | 0.26% |
| GED or Alternate | 341 | 5.26% |
| 1 or More Years of College | 1,174 | 18.11% |
| Associates Degree | 495 | 7.64% |
| Masters Degree | 335 | 5.17% |
| Professional Degree | 47 | 0.73% |
| Doctorate Degree | 29 | 0.45% |