| ZIP Code | 21664 |
|---|---|
| City | Secretary |
| State | Maryland (MD) |
| County | Dorchester County |
| Area Code | 410/667 |
| Elevation | 21 ft |
| Latitude | 38.607572 |
|---|---|
| Longitude | -75.947113 |
| Timezone | New York (DST) |
| FIPS | 24019 |
| ZIP Type | PO Box |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 37.1 yrs ↓ 13% since 2019 |
|---|---|
| Avg Household Size | 2.53 |
| Below Poverty | 9.5% ≈ Avg |
| College Grads | 26.1% ▼ 33% below avg |
| Unemployment | 6.2% ▲ 26% above avg |
| No HS Diploma | 5 (1.4%) |
| HS Graduate | 166 (47.6%) |
| Some College | 58 (16.6%) |
| Associates | 29 (8.3%) |
| Bachelors | 35 (10%) |
| Graduate Degree | 56 (16%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $68,333 ▼ 10% below avg ↑ 55% since 2019 |
|---|---|
| Median Home Value | $172,100 ▼ 38% below avg ↑ 20% since 2019 |
| Home/Income Ratio | 2.5x (nat avg ~3.5x) |
| Median Rent | $1,135/mo ↓ 7% since 2019 |
| Total Units | 269 |
| Vacant Units | 33 |
| Avg HH Size | 2.53 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 269 |
|---|---|
| Vacant | 33 |
| Owner Occupied | 67.4% |
| Renter Occupied | 32.6% |
| Avg HH Size | 2.53 |
ZIP code 21664 is located in Secretary, Maryland, within Dorchester County. With a population of 598, this is a sparsely populated ZIP code with a relatively young community — the median age is 37.1 years. Economically, 21664 is a solidly middle-class ZIP code: the median household income of $68,333 is near the national average.
Real estate in ZIP code 21664 represents an affordable housing market. The median home value of $172,100 is below the national average. Renters can expect to pay around $1,135 per month in median rent. Homeownership is strong here — 67.4% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 20% since 2019.
The population of 21664 is primarily White (78.26%). Residents are moderately educated — 26.1% hold a bachelor's degree or higher, which is below the national average. Poverty affects a relatively small share of residents at 9.5%. Household income has grown by 55% since 2019.
The unemployment rate in 21664 stands at 6.2%, which is above the national average. As in most parts of the country, driving alone is the dominant commute mode at 91%.
Overall, ZIP code 21664 in Secretary, MD is characterized as solidly middle-class, moderately educated, a relatively young community, and predominantly owner-occupied. With 598 residents, a median household income of $68,333, and a median home value of $172,100, it offers a clear picture of life in this part of Maryland.