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ZIP Code 5: 21203 - BALTIMORE, MD

ZIP Code 21203 is the postal code in BALTIMORE, MD. Besides the basic information, it also lists the full ZIP code and the address of ZIP code 21203. Whatsmore, there is more information related to ZIP Code 21203. For example, nearby ZIP code around ZIP Code 21203, etc.

ZIP 21203 Basic Information

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The basic information of ZIP Code 21203 is as follows, including: country, county, city, FIPS and etc.

StateCountyCityZIP Code 5
MD - MarylandBaltimore cityBALTIMORE21203

What is the plus 4 zip code for 21203 ZIP Code? Below is the detail.

21203 ZIP+4 Code List

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What are the 4 digit zip extensions of ZIP Code 21203? ZIP code 21203 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 21203. You can find a 9-digit ZIP Code by a full address.

ZIP Code 5 Plus 4 Address
21203-0001 PO BOX 1 (From 1 To 45), BALTIMORE, MD
21203-0051 PO BOX 51 (From 51 To 56), BALTIMORE, MD
21203-0058 PO BOX 58 (From 58 To 116), BALTIMORE, MD
21203-0121 PO BOX 121 (From 121 To 125), BALTIMORE, MD
21203-0131 PO BOX 131 (From 131 To 236), BALTIMORE, MD
21203-0237 PO BOX 237 (From 237 To 358), BALTIMORE, MD
21203-0361 PO BOX 361 (From 361 To 385), BALTIMORE, MD
21203-0386 PO BOX 386, BALTIMORE, MD
21203-0387 PO BOX 387 (From 387 To 476), BALTIMORE, MD
21203-0481 PO BOX 481 (From 481 To 598), BALTIMORE, MD

If you can't find the 21203 plus 4 zip code you need on this page, we recommend you to use the the feature of Quick Select.

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: 21203

What does each digit of ZIP Code 21203 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: 21203

Random Address in ZIP 21203

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ZIP Code 21203 has 454 real random addresses, you can clicking the picture below to get random addresses in ZIP Code 21203.

ZIP Code:21203

ZIP 21203 Online Map

ZIP 21203 Online Map

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

ZIP 21203 NearBy ZIP Code

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The Nearby ZIP Codes are 21202, 21201, 21231, 21217, and 21230, you can find ZIP codes in a 25km radius around ZIP Code 21203 and the approximate distance between the two ZIP codes.
The data has a slight deviation for your reference only.

ZIP CodeDistance (Kilo Meters)
212020.724
212011.118
212311.772
212172.872
212303.025
212233.501
212054.36
212184.372
212134.445
212114.752
212165.772
212516.335
212256.761
212246.886
212297.063
212277.501
212107.656
212147.922
212068.191
212398.326
212128.328
212158.541
212509.302
212079.612
212099.791
2122610.275
2109010.545
2123510.609
2125210.758
2122210.769
2123711.483
2122811.66
2120412.531
2123413.373
2106013.472
2113913.611
2124013.848
2128413.944
2128514.058
2120814.136
2128614.257
2106214.282
2106114.431
2109414.592
2122115.249
2102215.297
2123615.35
2107515.356
2124415.56
2104315.889
2104116.239
2107616.264
2115316.508
2109316.533
2107716.68
2105217.141
2121917.786
2122018.974
2112819.474
2113319.73
2114420.007
2105720.014
2112320.269
2112220.333
2104520.612
2106521.371
2116221.488
2109221.706
2116321.827
2111722.089
2103122.12
2102722.313
2079422.359
2103022.87
2110822.955
2104623.253
2070123.552
2113123.556
2108223.981
2108724.185
2114624.428
2076324.686
2104224.767
2105124.997
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Museum in ZIP Code 21203

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HISTORICAL ELECTRONICS MUSEUM is the only museum in ZIP Code 21203. You can find the address and phone number, and museum discipline below. Click the link to find more information about HISTORICAL ELECTRONICS MUSEUM.
ZIP Code 5: 21203 - BALTIMORE

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