Allen CDP, MD
ZIP 21810 — People & Community
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Upper Middle ClassLow Snow Area
Demographics, education attainment, health access, and community lifestyle
Population & Demographics in 21810
21810 has a population of 125 with a median age of 69.3 yrs (47.2% male).
Health & Community Indicators in 21810
Historical Trends in 21810 (2020–Present)
Since 2020, population declined 80.9%, median income fell 24.8% (inflation-adjusted), home values increased 3.7%.
People & Community key statistics
| Population | |
|---|---|
| Population | 125 |
| Median age | 69.3 |
| Poverty rate | 0.0% |
| Demographics | |
|---|---|
| White | 98.4% |
| Hispanic | 0.0% |
| Black | 0.0% |
| Asian | 0.0% |