21663 can be classified socioeconomically as Lower 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 21663 is White. The majority race/ethnicity attending public schools in 21663 is White. The current unemployment level in 21663 is 4.4%.
| Population | 3,646 |
| Population Growth Rate | 11.10% |
| Population Density | 165 People per Square Mile |
| Total Households | 1,664 |
| Percentage High Income Households | 11.1% |
| Median Household Income (2021) | $71,765 |
| Average Adjusted Gross Income (2021) | $700,490 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 84.57% |
| Public School Majority Race/Ethnicty | White - 72.08% |
21663 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 2,904 | 84.57% |
| Black | 373 | 10.86% |
| Hispanic | 129 | 3.76% |
| Asian | 28 | 0.82% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21663 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 537 | 76.06% |
| Black | 98 | 13.88% |
| Hispanic | 64 | 9.07% |
| Asian | 7 | 0.99% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21663 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 48 | 1.82% |
| Bachelor Degree | 701 | 26.54% |
| High School Diploma | 574 | 21.73% |
| No High School Diploma | 24 | 0.91% |
| GED or Alternate | 83 | 3.14% |
| 1 or More Years of College | 466 | 17.64% |
| Associates Degree | 178 | 6.74% |
| Masters Degree | 427 | 16.17% |
| Professional Degree | 69 | 2.61% |
| Doctorate Degree | 71 | 2.69% |