21657 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 21657 is White. The current unemployment level in 21657 is 4.4%.
| Population | 1,437 |
| Population Growth Rate | 0.00% |
| Population Density | 46 People per Square Mile |
| Total Households | 262 |
| Percentage High Income Households | 8.0% |
| Median Household Income (2021) | $95,139 |
| Average Adjusted Gross Income (2021) | $283,050 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 83.60% |
21657 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 958 | 83.6% |
| Black | 47 | 4.1% |
| Hispanic | 99 | 8.64% |
| Asian | 39 | 3.4% |
| Native American | 3 | 0.26% |
| Hawaiian/Pac. Islander | 0 | 0% |
21657 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 39 | 9.95% |
| Bachelor Degree | 34 | 8.67% |
| High School Diploma | 198 | 50.51% |
| No High School Diploma | 5 | 1.28% |
| GED or Alternate | 3 | 0.77% |
| 1 or More Years of College | 51 | 13.01% |
| Associates Degree | 11 | 2.81% |
| Masters Degree | 34 | 8.67% |
| Professional Degree | 17 | 4.34% |
| Doctorate Degree | 0 | 0% |