21228-3137 Zip Code

21228-3137 Zip Code is a 'Zip Code 5 Plus 4' zip code type in the state of Maryland, Catonsville City. This Zip Code is assigned to a street address number or a street address range in Catonsville, MD - US.

21228-3137 Area Code is 410/443 and Time Zone is Eastern (GMT -05:00).

Remember you have 2 kinds of blocks: even or odd. In this case, this Zip Code is assigned to Odd numbers in the corresponding block(s)



21228-3137 ZIP Code 5 Plus 4

The U.S. Postal Service introduced an expanded ZIP code system in Catonsville named ZIP Code 5 Plus 4, often called "add-on codes" or "add ons" zip code. A ZIP Plus Four Code (ZIP+4) uses the basic Catonsville Zip code (21228) plus four additional digits (3137) to identify a geographic segment within the five-digit delivery area, such as a the Roberts AVE street block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in Maryland.



The zip code 21228-3137, applies to residential houses, business, buildings, and every Catonsville City properties with Odd numeration buildings in this range:

1 - 99 Roberts AVE, Catonsville, Maryland - US


Street View 21228-3137 in MD

21228-3137 Zip Code 5 Plus 4 Street View

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ZIP Code 21228-3137 Map




21228-3137 Zip Code 5 Plus 4 Highlights

21228-3137 Zip Code Info
City: Catonsville
County: Baltimore
State: Maryland (MD)
City Zip Code: 21228
Plus 4 Code: 3137
Street: Roberts AVE
Block Range: 1 - 99
Numeration Type: Odd
21228-3137 Area Code: 410/443
21228-3137 Time Zone: Eastern (GMT -05:00)





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