ZIP Code: 21641 - HILLSBORO, MD
ZIP Code 21641 is assigned to HILLSBORO, MD. In addition to basic details, this page includes the full ZIP+4 Codes and address information for ZIP Code 21641. You can also find related data, such as nearby ZIP Codes and other relevant geographic details.
21641 ZIP+4 Code List
ZIP Code 21641 includes many ZIP+4 Codes. Each ZIP+4 Code corresponds to a specific address or group of addresses. Below is a complete list of all ZIP+4 Codes within ZIP Code 21641, along with their associated addresses. You can also find a 9-digit ZIP Code by entering a full address.
| ZIP+4 Code | Address |
|---|---|
| 21641-0001 | PO BOX 1 (From 1 To 118), HILLSBORO, MD |
| 21641-0121 | PO BOX 121 (From 121 To 234), HILLSBORO, MD |
| 21641-1100 | 22043 MAIN ST, HILLSBORO, MD |
| 21641-6800 | 21901 (From 21901 To 21999 Odd) MAIN ST, HILLSBORO, MD |
| 21641-6801 | 11201 (From 11201 To 11299 Odd) ACADEMY ST, HILLSBORO, MD |
| 21641-6802 | 11200 (From 11200 To 11298 Even) ACADEMY ST, HILLSBORO, MD |
| 21641-6803 | 11100 (From 11100 To 11198 Even) MAPLE AVE, HILLSBORO, MD |
| 21641-6804 | 11200 (From 11200 To 11298 Even) MAPLE AVE, HILLSBORO, MD |
| 21641-6805 | 11500 (From 11500 To 11598 Even) CEMETERY RD, HILLSBORO, MD |
| 21641-6806 | 11300 (From 11300 To 11398 Even) RIDGELY RD, HILLSBORO, MD |
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Post Office in ZIP Code 21641
HILLSBORO is the only post office in ZIP Code 21641. You can find the address, phone number, and interactive map below. Click to view the service and service hours about HILLSBORO.
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HILLSBORO Post Office
Address 22043 MAIN ST, HILLSBORO, MD, 21641-9998
Phone 410-364-5588
*Street Parking Available
How to write a U.S. envelope?
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First, you need to fill in the recipient's mailing information in the center of the envelope. The first line is the recipient's name, the second line is the street address with a detailed house number, and the last line is the city, state abbr, and ZIP Code.
Second, write the sender's information on the left top corner of the envelope. If your mail cannot be delivered, it will return to the sender's address.
Finally, don't forget to stick the stamp on the right top corner. Otherwise, the letter will not go into the delivery process.
Here is the envelope example below.
What does each digit of ZIP Code 21641 stand for?
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The first digit designates a national area, which ranges from zero for the Northeast to nine for the far West.
The 2-3 digits represent a sectional center facility in that region.
The last two digits designate small post offices or postal zones.
Random Address in ZIP Code 21641
ZIP Code 21641 has 26 real random addresses, you can clicking the picture below to get random addresses in ZIP Code 21641.
ZIP Code 21641 Map
This is the online map of HILLSBORO, Caroline County, Maryland. You can use the controls to move around and zoom in or out. Map information is for reference only.
Nearby ZIP Codes to 21641
Nearby ZIP Codes include 21657, 21660, 21625, 21629, and 21679. These ZIP Codes are located within approximately 25 kilometers of ZIP Code 21641. The listed distances are approximate and provided for reference only.
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