Harford County, Maryland ZIP Codes
- ZIP records
20 - Cities represented
19 - Sum of listed ZIP population estimates
262,768
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 21014 | Bel Air | 38,707 |
| 2 | 21009 | Abingdon | 33,679 |
| 3 | 21015 | Bel Air | 30,013 |
| 4 | 21001 | Aberdeen | 27,168 |
| 5 | 21040 | Edgewood | 24,960 |
| 6 | 21078 | Havre De Grace | 20,030 |
| 7 | 21050 | Forest Hill | 17,466 |
| 8 | 21085 | Joppa | 17,307 |
| 9 | 21047 | Fallston | 13,852 |
| 10 | 21084 | Jarrettsville | 7,070 |
Cities in Harford County
- Aberdeen
- Aberdeen Proving Ground
- Abingdon
- Bel Air
- Belcamp
- Churchville
- Darlington
- Edgewood
- Fallston
- Forest Hill
- Gunpowder
- Havre De Grace
- Jarrettsville
- Joppa
- Perryman
- Pylesville
- Street
- White Hall
- Whiteford
ZIP Directory
- ZIP 21001
- ZIP 21005
- ZIP 21009
- ZIP 21010
- ZIP 21014
- ZIP 21015
- ZIP 21017
- ZIP 21028
- ZIP 21034
- ZIP 21040
- ZIP 21047
- ZIP 21050
- ZIP 21078
- ZIP 21084
- ZIP 21085
- ZIP 21130
- ZIP 21132
- ZIP 21154
- ZIP 21160
- ZIP 21161
Browse all ZIP data for Maryland
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.