ZIP code 21688
Where is ZIP code 21688?
Ridgely, Maryland
Caroline County · Unique ZIP code · retired
ZIP code 21688 is no longer in use. USPS retired it, so mail addressed to it may be delayed or returned. ZIP code 21688 belongs to Ridgely, Maryland in Caroline County. 21688 is a unique ZIP code assigned to a single organization (Nationwide Fulfill Systems) that gets a lot of mail. It is in the Eastern Time zone and uses area code 410. The closest ZIP codes are 21660 (Ridgely, 1.2 mi north), 21641 (Hillsboro, 3.4 mi southwest) and 21639 (Greensboro, 4.3 mi east).
| ZIP code | 21688 |
|---|---|
| Type | Unique ZIP code for a single organization |
| Status | Retired (no longer in use) |
| City | Ridgely |
| State | Maryland (MD) |
| County | Caroline County |
| Time zone | Eastern Time · now |
| Area code | 410 |
| Coordinates | 38.94, -75.88 map |
| 3-digit prefix | 216 |
ZIP codes near 21688
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21660 | Ridgely, MD | 1.2 mi N | Standard |
| 21641 | Hillsboro, MD | 3.4 mi SW | PO Box only |
| 21639 | Greensboro, MD | 4.3 mi E | Standard |
| 21657 | Queen Anne, MD | 5.3 mi W | Standard |
| 21629 | Denton, MD | 6.1 mi SE | Standard |
| 21636 | Goldsboro, MD | 7.4 mi NE | Standard |
| 21625 | Cordova, MD | 8.2 mi SW | Standard |
| 21640 | Henderson, MD | 9.9 mi NE | Standard |
| 21679 | Wye Mills, MD | 10.9 mi W | Standard |
| 21617 | Centreville, MD | 12 mi NW | Standard |
| 21644 | Ingleside, MD | 12.3 mi N | Standard |
| 21656 | Price, MD | 13.1 mi NW | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21688 or measure the distance to another ZIP code.
Other ZIP codes in Ridgely, MD
All Ridgely ZIP codes with population and income →
Questions
- What city is ZIP code 21688?
- 21688 is a Ridgely, Maryland ZIP code.
- What county is 21688 in?
- ZIP code 21688 is in Caroline County, Maryland.
- What time zone is ZIP code 21688 in?
- 21688 is in the Eastern Time zone (America/New_York).
- What area code is 21688?
- Phone numbers in ZIP code 21688 use area code 410.
- Can I use 21688 for a street address?
- Only for mail to the organization it is assigned to. Other addresses in Ridgely use a standard ZIP code.
- What ZIP codes are near 21688?
- The nearest ZIP codes to 21688 are 21660 (Ridgely, 1.2 miles), 21641 (Hillsboro, 3.4 miles), 21639 (Greensboro, 4.3 miles) and 21657 (Queen Anne, 5.3 miles).