21770 can be classified socioeconomically as Upper 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 21770 is White. The majority race/ethnicity attending public schools in 21770 is White. The current unemployment level in 21770 is 4.4%.
| Population | 7,786 |
| Population Growth Rate | 45.21% |
| Population Density | 674 People per Square Mile |
| Total Households | 1,886 |
| Percentage High Income Households | 12.3% |
| Median Household Income (2021) | $159,091 |
| Average Adjusted Gross Income (2021) | $333,070 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6% |
| Majority Race/Ethnicity | White - 80.04% |
| Public School Majority Race/Ethnicity | White - 62.93% |
21770 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|
| White | 5,762 | 80.04% |
| Black | 546 | 7.58% |
| Hispanic | 388 | 5.39% |
| Asian | 503 | 6.99% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21770 Public School Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|
| White | 567 | 68.07% |
| Black | 65 | 7.8% |
| Hispanic | 103 | 12.36% |
| Asian | 98 | 11.76% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21770 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|
| Less Than 1 Year of College | 264 | 7.09% |
| Bachelor Degree | 1,002 | 26.9% |
| High School Diploma | 797 | 21.4% |
| No High School Diploma | 60 | 1.61% |
| GED or Alternate | 156 | 4.19% |
| 1 or More Years of College | 617 | 16.56% |
| Associates Degree | 309 | 8.3% |
| Masters Degree | 413 | 11.09% |
| Professional Degree | 66 | 1.77% |
| Doctorate Degree | 41 | 1.1% |
