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ZIP Code 5: 21010 - GUNPOWDER, MD

ZIP Code 21010 is the postal code in GUNPOWDER, MD. Besides the basic information, it also lists the full ZIP code and the address of ZIP code 21010. Whatsmore, there is more information related to ZIP Code 21010. For example, nearby ZIP code around ZIP Code 21010, etc.

ZIP 21010 Basic Information

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The basic information of ZIP Code 21010 is as follows, including: country, county, city, FIPS and etc.

StateCountyCityZIP Code 5
MD - MarylandHarford CountyGUNPOWDER21010

What is the plus 4 zip code for 21010 ZIP Code? Below is the detail.

21010 ZIP+4 Code List

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What are the 4 digit zip extensions of ZIP Code 21010? ZIP code 21010 has many plus 4 codes, and each plus 4 code corresponds to one or more addresses. Below we list all the ZIP+4 codes and their addresses in the ZIP Code 21010. You can find a 9-digit ZIP Code by a full address.

ZIP Code 5 Plus 4 Address
21010-0001 PO BOX 1 (From 1 To 49), GUNPOWDER, MD
21010-0051 PO BOX 51 (From 51 To 99), GUNPOWDER, MD
21010-0101 PO BOX 101 (From 101 To 149), GUNPOWDER, MD
21010-0151 PO BOX 151 (From 151 To 199), GUNPOWDER, MD
21010-0201 PO BOX 201 (From 201 To 239), GUNPOWDER, MD
21010-1600 2801 (From 2801 To 2899 Odd) CLEARVIEW DR, GUNPOWDER, MD
21010-1601 8000 (From 8000 To 8098 Even) EVERETTE RD, GUNPOWDER, MD
21010-1602 8001 (From 8001 To 8099 Odd) EVERETTE RD, GUNPOWDER, MD
21010-1603 4800 (From 4800 To 4898 Even) AUSTIN RD, GUNPOWDER, MD
21010-1604 3001 (From 3001 To 3099 Odd) CHEVRON DR, GUNPOWDER, MD

If you can't find the 21010 plus 4 zip code you need on this page, we recommend you to use the the feature of Quick Select.

Post Office in ZIP Code 21010

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GUNPOWDER is the only post office in ZIP Code 21010. You can find the address, phone number, and interactive map below. Click to view the service and service hours about GUNPOWDER.

  • GUNPOWDER Post Office more-info

    Address 4405 AUSTIN RD, GUNPOWDER, MD, 21010-9998

    Phone 410-676-1905

    *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.

    ZIP Code: 21010

What does each digit of ZIP Code 21010 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.

    ZIP Code: 21010

Random Address in ZIP 21010

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ZIP Code 21010 has 191 real random addresses, you can clicking the picture below to get random addresses in ZIP Code 21010.

ZIP Code:21010

ZIP 21010 Online Map

ZIP 21010 Online Map

This is online map of the address GUNPOWDER, Harford County, Maryland. You may use button to move and zoom in / out. The map information is for reference only.

ZIP 21010 NearBy ZIP Code

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The Nearby ZIP Codes are 21027, 21040, 21162, 21220, and 21085, you can find ZIP codes in a 25km radius around ZIP Code 21010 and the approximate distance between the two ZIP codes.
The data has a slight deviation for your reference only.

ZIP CodeDistance (Kilo Meters)
210276.514
210407.296
211629.236
212209.618
2108510.165
2115611.143
2100911.828
2101713.03
2112813.433
2113013.683
2108713.792
2100514.201
2122114.514
2123616.737
2100116.796
2101817.25
2123717.433
2167818.209
2105118.272
2121918.982
2108219.406
2101419.639
2161019.831
2105719.843
2101520.055
2123420.289
2120621.038
2122221.065
2166721.497
2105222.08
2104722.196
2122422.792
2102822.809
2109222.815
2121423.068
2101323.103
2120524.234
2128624.322
2107824.463
2121324.676
2125124.8
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ZIP Code 5: 21010 - GUNPOWDER

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