20688 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 20688 is White. The current unemployment level in 20688 is 4.4%.
| Population | 1,170 |
| Population Growth Rate | -22.09% |
| Population Density | 308 People per Square Mile |
| Total Households | 987 |
| Percentage High Income Households | 1.0% |
| Median Household Income (2021) | $115,680 |
| Average Adjusted Gross Income (2021) | $328,610 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 99.57% |
20688 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 1,383 | 99.57% |
| Black | 6 | 0.43% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
20688 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 42 | 3.27% |
| Bachelor Degree | 394 | 30.64% |
| High School Diploma | 177 | 13.76% |
| No High School Diploma | 5 | 0.39% |
| GED or Alternate | 0 | 0% |
| 1 or More Years of College | 179 | 13.92% |
| Associates Degree | 154 | 11.98% |
| Masters Degree | 311 | 24.18% |
| Professional Degree | 24 | 1.87% |
| Doctorate Degree | 0 | 0% |