21740 can be classified socioeconomically as Lower 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 21740 is White. The majority race/ethnicity attending public schools in 21740 is White. The current unemployment level in 21740 is 3.8%.
| Population | 62,760 |
| Population Growth Rate | 2.66% |
| Population Density | 913 People per Square Mile |
| Total Households | 23,225 |
| Percentage High Income Households | 1.5% |
| Median Household Income (2021) | $52,065 |
| Average Adjusted Gross Income (2021) | $344,280 |
| Current Unemployment Rate (September 2025) | 3.8% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 73.27% |
| Public School Majority Race/Ethnicty | White - 48.88% |
21740 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 45,772 | 73.16% |
| Black | 10,383 | 16.6% |
| Hispanic | 5,114 | 8.17% |
| Asian | 1,100 | 1.76% |
| Native American | 103 | 0.16% |
| Hawaiian/Pac. Islander | 95 | 0.15% |
21740 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 3,960 | 55.56% |
| Black | 1,700 | 23.85% |
| Hispanic | 1,256 | 17.62% |
| Asian | 187 | 2.62% |
| Native American | 16 | 0.22% |
| Hawaiian/Pac. Islander | 9 | 0.13% |
21740 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 3,607 | 10.44% |
| Bachelor Degree | 3,740 | 10.82% |
| High School Diploma | 13,048 | 37.75% |
| No High School Diploma | 632 | 1.83% |
| GED or Alternate | 3,101 | 8.97% |
| 1 or More Years of College | 5,391 | 15.6% |
| Associates Degree | 3,269 | 9.46% |
| Masters Degree | 1,416 | 4.1% |
| Professional Degree | 256 | 0.74% |
| Doctorate Degree | 102 | 0.3% |