Harford County ZIP Codes
Maryland, United States · 21 codes
Harford County in Maryland has 21 ZIP codes, from 21001 to 21161, serving 21 places.
ZIP codes in Harford
| ZIP Code | Places |
|---|---|
| 21001 | Aberdeen |
| 21005 | Aberdeen Proving Ground |
| 21009 | Abingdon |
| 21010 | Gunpowder |
| 21014 | Bel Air |
| 21015 | Bel Air |
| 21017 | Belcamp |
| 21018 | Benson |
| 21028 | Churchville |
| 21034 | Darlington |
| 21040 | Edgewood |
| 21047 | Fallston |
| 21050 | Forest Hill |
| 21078 | Havre De Grace |
| 21084 | Jarrettsville |
| 21085 | Joppa |
| 21130 | Perryman |
| 21132 | Pylesville |
| 21154 | Street |
| 21160 | Whiteford |
| 21161 | White Hall |
Frequently asked questions
What is the ZIP code of Harford?
Harford has 21 ZIP codes, from 21001 to 21161. The table lists the places each one serves.
How many places are listed in Harford County?
21 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.