Zip code 21720: Cavetown, Maryland
This zip has no delivery boundary. The map shows its post office location and nearby zip codes.
About 21720
21720 is a non-residential zip code for Cavetown, Maryland (Washington County). It has no delivery area of its own, so the Census Bureau doesn't publish population or housing figures for it. Codes like this are usually assigned to post office boxes, or to a single organization such as a university, hospital, government agency or large company that gets enough mail to need its own zip code.
For a picture of the people who live around 21720, see the residential zip codes in the nearby list below.
Geography
- City (USPS)
- Cavetown
- State
- Maryland
- County
- Washington County
- Center point
- 39.6473° N, 77.5842° W
- Time zone
- Eastern Time (UTC-5, UTC-4 in summer)
- Zip type
- PO box or unique zip
Zip codes near 21720
| Zip | City | Distance | IncomeMedian income |
|---|---|---|---|
| 21783 | Smithsburg, MD | 1.7 mi | $100,750 |
| 21721 | Chewsville, MD · PO box | 2.8 mi | — |
| 21742 | Hagerstown, MD | 4.2 mi | $86,288 |
| 21719 | Cascade, MD | 6 mi | $65,809 |
| 21780 | Sabillasville, MD | 6.2 mi | $83,785 |
| 21734 | Funkstown, MD | 7 mi | $61,392 |
| 17250 | Rouzerville, PA | 7 mi | — |
| 21741 | Hagerstown, MD · PO box | 7.2 mi | — |
| 21747 | Hagerstown, MD · PO box | 7.2 mi | — |
| 21749 | Hagerstown, MD · PO box | 7.2 mi | — |
| 21773 | Myersville, MD | 7.4 mi | $161,908 |
| 21740 | Hagerstown, MD | 8.6 mi | $62,873 |
Questions about 21720
What city is zip code 21720?
21720 is assigned to Cavetown, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.
What county is 21720 in?
21720 is in Washington County, Maryland.
What time zone is 21720 in?
21720 is in Eastern Time.
What zip codes are near 21720?
The closest zip codes to 21720 are 21783, 21721, 21742, 21719, 21780.
Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21720, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.