Look up a Postal Code
| District / County name | Postal code | More |
|---|---|---|
| Aberdeen | 21001 | Aberdeen District, Harford City, Maryland Province, United States 21001 |
| Aberdeen Proving Ground | 21010 | Aberdeen Proving Ground District, Harford City, Maryland Province, United States 21010 |
| Abingdon | 21009 | Abingdon District, Harford City, Maryland Province, United States 21009 |
| Bel Air | 21015 | Bel Air District, Harford City, Maryland Province, United States 21015 |
| Belcamp | 21017 | Belcamp District, Harford City, Maryland Province, United States 21017 |
| Benson | 21018 | Benson District, Harford City, Maryland Province, United States 21018 |
| Cardiff | 21160 | Cardiff District, Harford City, Maryland Province, United States 21160 |
| Churchville | 21028 | Churchville District, Harford City, Maryland Province, United States 21028 |
| Darlington | 21034 | Darlington District, Harford City, Maryland Province, United States 21034 |
| Edgewood | 21040 | Edgewood District, Harford City, Maryland Province, United States 21040 |
| Edgewood Arsenal | 21010 | Edgewood Arsenal District, Harford City, Maryland Province, United States 21010 |
| Fallston | 21047 | Fallston District, Harford City, Maryland Province, United States 21047 |
| Forest Hill | 21050 | Forest Hill District, Harford City, Maryland Province, United States 21050 |
| Gunpowder | 21010 | Gunpowder District, Harford City, Maryland Province, United States 21010 |
| Havre De Grace | 21078 | Havre De Grace District, Harford City, Maryland Province, United States 21078 |
| Jarrettsville | 21084 | Jarrettsville District, Harford City, Maryland Province, United States 21084 |
| Joppa | 21085 | Joppa District, Harford City, Maryland Province, United States 21085 |
| Joppatown | 21085 | Joppatown District, Harford City, Maryland Province, United States 21085 |
| Joppatowne | 21085 | Joppatowne District, Harford City, Maryland Province, United States 21085 |
| Norrisville | 21161 | Norrisville District, Harford City, Maryland Province, United States 21161 |
| Perryman | 21130 | Perryman District, Harford City, Maryland Province, United States 21130 |
| Pylesville | 21132 | Pylesville District, Harford City, Maryland Province, United States 21132 |
| Riverside | 21017 | Riverside District, Harford City, Maryland Province, United States 21017 |
| Street | 21154 | Street District, Harford City, Maryland Province, United States 21154 |
| White Hall | 21161 | White Hall District, Harford City, Maryland Province, United States 21161 |
| Whiteford | 21160 | Whiteford District, Harford City, Maryland Province, United States 21160 |
District / County name
Postal code
Aberdeen
21001
Aberdeen District, Harford City, Maryland Province, United States 21001
Aberdeen Proving Ground
21010
Aberdeen Proving Ground District, Harford City, Maryland Province, United States 21010
Abingdon
21009
Abingdon District, Harford City, Maryland Province, United States 21009
Bel Air
21015
Bel Air District, Harford City, Maryland Province, United States 21015
Belcamp
21017
Belcamp District, Harford City, Maryland Province, United States 21017
Benson
21018
Benson District, Harford City, Maryland Province, United States 21018
Cardiff
21160
Cardiff District, Harford City, Maryland Province, United States 21160
Churchville
21028
Churchville District, Harford City, Maryland Province, United States 21028
Darlington
21034
Darlington District, Harford City, Maryland Province, United States 21034
Edgewood
21040
Edgewood District, Harford City, Maryland Province, United States 21040
Edgewood Arsenal
21010
Edgewood Arsenal District, Harford City, Maryland Province, United States 21010
Fallston
21047
Fallston District, Harford City, Maryland Province, United States 21047
Forest Hill
21050
Forest Hill District, Harford City, Maryland Province, United States 21050
Gunpowder
21010
Gunpowder District, Harford City, Maryland Province, United States 21010
Havre De Grace
21078
Havre De Grace District, Harford City, Maryland Province, United States 21078
Jarrettsville
21084
Jarrettsville District, Harford City, Maryland Province, United States 21084
Joppa
21085
Joppa District, Harford City, Maryland Province, United States 21085
Joppatown
21085
Joppatown District, Harford City, Maryland Province, United States 21085
Joppatowne
21085
Joppatowne District, Harford City, Maryland Province, United States 21085
Norrisville
21161
Norrisville District, Harford City, Maryland Province, United States 21161
Perryman
21130
Perryman District, Harford City, Maryland Province, United States 21130
Pylesville
21132
Pylesville District, Harford City, Maryland Province, United States 21132
Riverside
21017
Riverside District, Harford City, Maryland Province, United States 21017
Street
21154
Street District, Harford City, Maryland Province, United States 21154
White Hall
21161
White Hall District, Harford City, Maryland Province, United States 21161
Whiteford
21160
Whiteford District, Harford City, Maryland Province, United States 21160