ZIP Code: 21661 - ROCK HALL, MD
ZIP Code 21661 is assigned to ROCK HALL, MD. In addition to basic details, this page includes the full ZIP+4 Codes and address information for ZIP Code 21661. You can also find related data, such as nearby ZIP Codes and other relevant geographic details.
21661 ZIP+4 Code List
ZIP Code 21661 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 21661, along with their associated addresses. You can also find a 9-digit ZIP Code by entering a full address.
| ZIP+4 Code | Address |
|---|---|
| 21661-0001 | PO BOX 1 (From 1 To 60), ROCK HALL, MD |
| 21661-0061 | PO BOX 61 (From 61 To 120), ROCK HALL, MD |
| 21661-0121 | PO BOX 121 (From 121 To 180), ROCK HALL, MD |
| 21661-0181 | PO BOX 181 (From 181 To 240), ROCK HALL, MD |
| 21661-0241 | PO BOX 241 (From 241 To 300), ROCK HALL, MD |
| 21661-0301 | PO BOX 301 (From 301 To 360), ROCK HALL, MD |
| 21661-0361 | PO BOX 361 (From 361 To 420), ROCK HALL, MD |
| 21661-0421 | PO BOX 421 (From 421 To 480), ROCK HALL, MD |
| 21661-0481 | PO BOX 481 (From 481 To 540), ROCK HALL, MD |
| 21661-0541 | PO BOX 541 (From 541 To 600), ROCK HALL, MD |
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Post Office in ZIP Code 21661
ROCK HALL is the only post office in ZIP Code 21661. You can find the address, phone number, and interactive map below. Click to view the service and service hours about ROCK HALL.
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ROCK HALL Post Office
Address 5691 LIBERTY ST, ROCK HALL, MD, 21661-9998
Phone 410-639-7054
*Lot 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 21661 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 21661
ZIP Code 21661 has 552 real random addresses, you can clicking the picture below to get random addresses in ZIP Code 21661.
ZIP Code 21661 Map
This is the online map of ROCK HALL, Kent 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 21661
Nearby ZIP Codes include 21620, 21690, 21619, 21617, and 21056. These ZIP Codes are located within approximately 25 kilometers of ZIP Code 21661. The listed distances are approximate and provided for reference only.
Library in ZIP Code 21661
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ROCK HALL BRANCH
Phone: (410) 639-7162Address: 5585 MAIN STREET, ROCK HALL MD 21661, USA
School in ZIP Code 21661
This is the ZIP Code 21661 - School page list. Its detail School Name, Address, City, State, ZIP Code is as below.
| School Name | Address | City | State | Grades | ZIP Code |
|---|---|---|---|---|---|
| Rock Hall Elementary | Po Box 669 | Rock Hall | Maryland | PK-4 | 21661 |
| Rock Hall Middle | Po Box 719 | Rock Hall | Maryland | 5-8 | 21661 |
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