Deal Island, MD ZIP Codes
One ZIP code serves Deal Island, Maryland: 21821. Together they are home to 797 residents in 375 households. That is more than the 341 people counted inside Deal Island Census-designated place, because these ZIP codes reach past its boundary.
Deal Island Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 341 |
| Households | 189 |
| Median household income | $22,404 |
| Median home value | $134,800 |
| Median age | 61.8 |
| Median rent | $1,615 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 797 |
| Households (sum of ZIP codes) | 375 |
| Median household income, range across ZIP codes | $60,341 (21821) to $60,341 (21821) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $60,341 |
| Homeowners | 83.2% |
| Households with kids under 18 | 20.8% |
| Moved in the past year | 0.0% |
| Carrier routes in EDDM2GO's route library | 1 routes, 538 homes (1 of 1 ZIP codes) |
Every ZIP code in Deal Island
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 21821 | Deal Island | 797 | 375 | $60,341 | $188,200 | 83.2% | 20.8% | 0.0% | 1 | 545 | 21% of its land; mailing city |
A ZIP code is listed for Deal Island when at least 10% of its land lies inside the Deal Island Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Deal Island. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Deal Island.
Counties
- Somerset County — 11 ZIP codes
Price a mailing to Deal Island ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Deal Island, MD?
- 21821. A ZIP code is listed for Deal Island when at least 10% of its land lies inside the Deal Island Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Deal Island.
- What is the population of Deal Island, MD?
- The Census Bureau counts 341 residents inside Deal Island Census-designated place (ACS 2020–2024). The 1 ZIP code that serve Deal Island hold 797 residents in all.
- What is the median household income in Deal Island, MD?
- $22,404 inside Deal Island Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $60,341 to $60,341.
- How many carrier routes and mailboxes are in Deal Island, MD?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 1 carrier routes reaching 538 residential and 7 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.