ZIP code 21721
Where is ZIP code 21721?
Chewsville, Maryland
Washington County · PO Box only ZIP code
ZIP code 21721 belongs to Chewsville, Maryland in Washington County. 21721 is a PO Box only ZIP code: it is used for post office boxes at the Chewsville post office, not for street addresses. It is in the Eastern Time zone and uses area code 240. The closest ZIP codes are 21720 (Cavetown, 2.8 mi east), 21742 (Hagerstown, 3.1 mi west) and 21783 (Smithsburg, 3.6 mi east).
| ZIP code | 21721 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Chewsville |
| State | Maryland (MD) |
| County | Washington County |
| Time zone | Eastern Time · now |
| Area code | 240 |
| Coordinates | 39.6425, -77.6372 map |
| 3-digit prefix | 217 |
The Census Bureau doesn’t publish population figures for po box only ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.
ZIP codes near 21721
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21720 | Cavetown, MD | 2.8 mi E | PO Box only |
| 21742 | Hagerstown, MD | 3.1 mi W | Standard |
| 21783 | Smithsburg, MD | 3.6 mi E | Standard |
| 21734 | Funkstown, MD | 4.3 mi SW | PO Box only |
| 21741 | Hagerstown, MD | 4.4 mi W | PO Box only |
| 21747 | Hagerstown, MD | 4.4 mi W | PO Box only |
| 21749 | Hagerstown, MD | 4.4 mi W | Unique |
| 21740 | Hagerstown, MD | 5.4 mi W | Standard |
| 21713 | Boonsboro, MD | 7 mi SW | Standard |
| 21746 | Hagerstown, MD | 7 mi SW | Unique |
| 17263 | State Line, PA | 7.1 mi NW | PO Box only |
| 21767 | Maugansville, MD | 7.2 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21721 or measure the distance to another ZIP code.
How to address mail to 21721
PO BOX 123
CHEWSVILLE MD 21721
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21721-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21721?
- 21721 is a Chewsville, Maryland ZIP code.
- What county is 21721 in?
- ZIP code 21721 is in Washington County, Maryland.
- What time zone is ZIP code 21721 in?
- 21721 is in the Eastern Time zone (America/New_York).
- What area code is 21721?
- Phone numbers in ZIP code 21721 use area code 240.
- Can I use 21721 for a street address?
- No. 21721 is only for PO Boxes. Street addresses in Chewsville use another ZIP code.
- What ZIP codes are near 21721?
- The nearest ZIP codes to 21721 are 21720 (Cavetown, 2.8 miles), 21742 (Hagerstown, 3.1 miles), 21783 (Smithsburg, 3.6 miles) and 21734 (Funkstown, 4.3 miles).