21829 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 21829 is White. The current unemployment level in 21829 is 4.4%.
| Population | 394 |
| Population Growth Rate | -16.67% |
| Population Density | 22 People per Square Mile |
| Total Households | 321 |
| Median Household Income (2021) | $133,375 |
| Average Adjusted Gross Income (2021) | $139,860 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 96.71% |
21829 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 353 | 96.71% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 12 | 3.29% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21829 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 47 | 9.25% |
| Bachelor Degree | 57 | 11.22% |
| High School Diploma | 139 | 27.36% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 61 | 12.01% |
| 1 or More Years of College | 176 | 34.65% |
| Associates Degree | 20 | 3.94% |
| Masters Degree | 8 | 1.57% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |