21788 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 21788 is White. The majority race/ethnicity attending public schools in 21788 is White. The current unemployment level in 21788 is 4.4%.
| Population | 11,412 |
| Population Growth Rate | -1.23% |
| Population Density | 176 People per Square Mile |
| Total Households | 4,466 |
| Percentage High Income Households | 4.7% |
| Median Household Income (2021) | $83,988 |
| Average Adjusted Gross Income (2021) | $403,060 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 94.40% |
| Public School Majority Race/Ethnicty | White - 88.22% |
21788 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 11,031 | 94.4% |
| Black | 105 | 0.9% |
| Hispanic | 509 | 4.36% |
| Asian | 27 | 0.23% |
| Native American | 13 | 0.11% |
| Hawaiian/Pac. Islander | 0 | 0% |
21788 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 1,790 | 91.47% |
| Black | 20 | 1.02% |
| Hispanic | 131 | 6.69% |
| Asian | 10 | 0.51% |
| Native American | 4 | 0.2% |
| Hawaiian/Pac. Islander | 2 | 0.1% |
21788 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 609 | 8.42% |
| Bachelor Degree | 1,044 | 14.44% |
| High School Diploma | 2,814 | 38.92% |
| No High School Diploma | 76 | 1.05% |
| GED or Alternate | 228 | 3.15% |
| 1 or More Years of College | 1,198 | 16.57% |
| Associates Degree | 527 | 7.29% |
| Masters Degree | 585 | 8.09% |
| Professional Degree | 74 | 1.02% |
| Doctorate Degree | 76 | 1.05% |