| ZIP Code | 21655 |
|---|---|
| City | Preston |
| State | Maryland (MD) |
| County | Caroline County |
| Area Code | 410/667 |
| Elevation | 47 ft |
| Latitude | 38.744968 |
|---|---|
| Longitude | -75.912768 |
| Timezone | New York (DST) |
| FIPS | 24011 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 42.5 yrs ↓ 4% since 2019 |
|---|---|
| Avg Household Size | 2.70 |
| Below Poverty | 7.3% ▼ 28% below avg |
| College Grads | 36.0% ≈ Avg |
| Unemployment | 3.4% ▼ 30% below avg |
| No HS Diploma | 19 (0.6%) |
| HS Graduate | 1,220 (36.8%) |
| Some College | 461 (13.9%) |
| Associates | 423 (12.8%) |
| Bachelors | 303 (9.1%) |
| Graduate Degree | 890 (26.8%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $85,608 ▲ 12% above avg ↑ 30% since 2019 |
|---|---|
| Median Home Value | $291,200 ≈ Avg ↑ 35% since 2019 |
| Home/Income Ratio | 3.4x (nat avg ~3.5x) |
| Median Rent | $1,313/mo ↑ 30% since 2019 |
| Total Units | 2,041 |
| Vacant Units | 195 |
| Avg HH Size | 2.70 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 2,041 |
|---|---|
| Vacant | 195 |
| Owner Occupied | 82.2% |
| Renter Occupied | 17.8% |
| Avg HH Size | 2.70 |
ZIP code 21655 is located in Preston, Maryland, within Caroline County. With a population of 4,995, this is a lightly populated ZIP code with a middle-aged community — the median age is 42.5 years. Economically, 21655 is a middle-income ZIP code: the median household income of $85,608 is near the national average.
Real estate in ZIP code 21655 represents a mid-range housing market. The median home value of $291,200 is near the national average. Renters can expect to pay around $1,313 per month in median rent. Homeownership is strong here — 82.2% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 35% since 2019.
The population of 21655 is primarily White (79.24%). Residents are moderately educated — 36.0% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 7.3%. Household income has grown by 30% since 2019.
The unemployment rate in 21655 stands at 3.4%, which is below the national average. As in most parts of the country, driving alone is the dominant commute mode at 87%.
Overall, ZIP code 21655 in Preston, MD is characterized as middle-income, moderately educated, a middle-aged community, and predominantly owner-occupied. With 4,995 residents, a median household income of $85,608, and a median home value of $291,200, it offers a clear picture of life in this part of Maryland.