Postindex logo - Find postal codes for any location

Zip Codes of Maryland, United States

Explore the Zip Codes structure of Maryland. This part of United States is organized into 23 administrative areas, each serving as a vital link in the regional logistics network. Our directory helps you navigate these districts to find precise geographic identifiers for efficient mail routing and local delivery.

Regions of Maryland

Allegany
22 post codes 18 localities
Allegany postal code range 21501 — 21766
Anne Arundel
43 post codes 33 localities
Anne Arundel postal code range 20711 — 21412
Baltimore
92 post codes 45 localities
Baltimore postal code range 21013 — 21298
Calvert
14 post codes 14 localities
Calvert postal code range 20610 — 20754
Caroline
11 post codes 11 localities
Caroline postal code range 21609 — 21670
Carroll
13 post codes 12 localities
Carroll postal code range 21048 — 21797
Cecil
17 post codes 16 localities
Cecil postal code range 21901 — 21930
Charles
24 post codes 21 localities
Charles postal code range 20601 — 20695
Dorchester
16 post codes 16 localities
Dorchester postal code range 21613 — 21869
Frederick
31 post codes 26 localities
Frederick postal code range 21701 — 21798
Garrett
9 post codes 9 localities
Garrett postal code range 21520 — 21561
Harford
21 post codes 20 localities
Harford postal code range 21001 — 21161
Howard
22 post codes 18 localities
Howard postal code range 20588 — 21794
Kent
9 post codes 9 localities
Kent postal code range 21610 — 21678
Montgomery
76 post codes 30 localities
Montgomery postal code range 20810 — 20997
Prince George's
64 post codes 27 localities
Prince George's postal code range 20607 — 20913
Queen Anne's
13 post codes 13 localities
Queen Anne's postal code range 21607 — 21690
Somerset
11 post codes 10 localities
Somerset postal code range 21817 — 21890
St. Mary's
29 post codes 29 localities
St. Mary's postal code range 20606 — 20692
Talbot
15 post codes 15 localities
Talbot postal code range 21601 — 21679
Washington
23 post codes 18 localities
Washington postal code range 21711 — 21795
Wicomico
18 post codes 15 localities
Wicomico postal code range 21801 — 21875
Worcester
12 post codes 11 localities
Worcester postal code range 21811 — 21872

Hierarchy of Zip Codes in Maryland

Explore the Maryland postal structure. This region in United States is divided into several administrative districts, each with its own unique Zip Codes range. Select a sub-region below to find specific codes for cities, municipalities, and local streets. Accurate geographic data for Maryland is essential for precise mail routing and logistics management in this area.

Popular Zip Codes

Code Locality
$pc->postcode Zip Code of Maryland 21401
Annapolis locality Annapolis
$pc->postcode Zip Code of Maryland 21402
Annapolis locality Annapolis
$pc->postcode Zip Code of Maryland 21201
Baltimore locality Baltimore
$pc->postcode Zip Code of Maryland 21202
Baltimore locality Baltimore
$pc->postcode Zip Code of Maryland 21701
Frederick locality Frederick
$pc->postcode Zip Code of Maryland 21702
Frederick locality Frederick
$pc->postcode Zip Code of Maryland 20810
Bethesda locality Bethesda
$pc->postcode Zip Code of Maryland 20811
Bethesda locality Bethesda
$pc->postcode Zip Code of Maryland 20877
Gaithersburg locality Gaithersburg
$pc->postcode Zip Code of Maryland 20878
Gaithersburg locality Gaithersburg
$pc->postcode Zip Code of Maryland 20847
Rockville locality Rockville
$pc->postcode Zip Code of Maryland 20848
Rockville locality Rockville

Explore Other Postal Regions in United States

Arizona Zip Code Arkansas Zip Code California Zip Code Colorado Zip Code Connecticut Zip Code Delaware Zip Code District Of Columbia Zip Code Florida Zip Code Georgia Zip Code Hawaii Zip Code

Global Postal Code Directories

Germany Postal Codes Germany PLZ France Postal Codes France Postcodes Canada Postal Codes Canada Postal Codes Italy Postal Codes Italy CAP Netherlands Postal Codes Netherlands Postcode Brazil Postal Codes Brazil CEP Mexico Postal Codes Mexico Código Postal Argentina Postal Codes Argentina Postal Code