20878 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 20878 is White. The majority race/ethnicity attending public schools in 20878 is White. The current unemployment level in 20878 is 3.8%.
| Population | 65,954 |
| Population Growth Rate | 0.00% |
| Population Density | 3,157 People per Square Mile |
| Total Households | 22,517 |
| Percentage High Income Households | 19.4% |
| Median Household Income (2021) | $130,469 |
| Average Adjusted Gross Income (2021) | $434,240 |
| Current Unemployment Rate (September 2025) | 3.8% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 50.02% |
| Public School Majority Race/Ethnicty | White - 33.45% |
20878 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 32,750 | 50.02% |
| Black | 6,912 | 10.56% |
| Hispanic | 7,722 | 11.79% |
| Asian | 17,886 | 27.32% |
| Native American | 208 | 0.32% |
| Hawaiian/Pac. Islander | 0 | 0% |
20878 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 3,049 | 35.37% |
| Black | 1,317 | 15.28% |
| Hispanic | 2,347 | 27.23% |
| Asian | 1,887 | 21.89% |
| Native American | 14 | 0.16% |
| Hawaiian/Pac. Islander | 6 | 0.07% |
20878 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 1,359 | 3.32% |
| Bachelor Degree | 13,680 | 33.39% |
| High School Diploma | 4,083 | 9.97% |
| No High School Diploma | 333 | 0.81% |
| GED or Alternate | 371 | 0.91% |
| 1 or More Years of College | 4,099 | 10% |
| Associates Degree | 2,099 | 5.12% |
| Masters Degree | 9,658 | 23.57% |
| Professional Degree | 2,055 | 5.02% |
| Doctorate Degree | 3,235 | 7.9% |