Harford County, Maryland ZIP codes
21 ZIP codes are in Harford County, plus 4 that cross in from neighboring counties. It's part of the Baltimore-Columbia-Towson, MD metro area.
- ZIP codes
- 21
- Population in these ZIPs
- 262,768
- Avg. median income
- $113,900population-weighted
- Cities & towns
- 20
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Harford County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 21001 | Aberdeen | 27,168 | $83,238 | $344,400 |
| 21005 | Aberdeen Proving Ground | 2,202 | $125,208 | — |
| 21009 | Abingdon | 33,679 | $121,660 | $370,300 |
| 21010 | Gunpowder | 239 | $99,410 | — |
| 21014 | Bel Air | 38,707 | $116,970 | $445,000 |
| 21015 | Bel Air | 30,013 | $137,281 | $479,100 |
| 21017 | Belcamp | 6,648 | $106,831 | $285,000 |
| 21018 PO Box | Benson | — | — | — |
| 21028 | Churchville | 3,103 | $137,586 | $536,500 |
| 21034 | Darlington | 2,846 | $78,047 | $449,000 |
| 21040 | Edgewood | 24,960 | $81,704 | $261,800 |
| 21047 | Fallston | 13,852 | $157,500 | $563,000 |
| 21050 | Forest Hill | 17,466 | $125,208 | $500,200 |
| 21078 | Havre De Grace | 20,030 | $106,667 | $404,600 |
| 21084 | Jarrettsville | 7,070 | $121,509 | $545,100 |
| 21085 | Joppa | 17,307 | $113,714 | $365,000 |
| 21130 | Perryman | 112 | $17,336 | — |
| 21132 | Pylesville | 3,160 | $132,288 | $551,500 |
| 21154 | Street | 6,544 | $97,658 | $540,000 |
| 21160 | Whiteford | 2,441 | $106,181 | $444,600 |
| 21161 | White Hall | 5,221 | $108,094 | $562,300 |
ZIP codes partly in Harford County
These ZIP codes are mostly in a neighboring county but cover part of Harford County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 21013 | Baldwin | Baltimore County | 5,610 | $171,354 | $658,100 |
| 21082 | Hydes | Baltimore County | 626 | $145,571 | $582,300 |
| 21087 | Kingsville | Baltimore County | 5,537 | $129,188 | $545,000 |
| 21111 | Monkton | Baltimore County | 4,714 | $136,304 | $720,200 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Harford County
Nearby counties
Frequently asked questions
How many ZIP codes are in Harford County, Maryland?
21 ZIP codes are mainly in Harford County, and 4 more ZIP codes from neighboring areas reach partly into it.
What cities are in Harford County?
ZIP codes in Harford County use the city names Aberdeen, Aberdeen Proving Ground, Abingdon, Bel Air, Belcamp, Benson, Churchville, Darlington, Edgewood, Fallston, Forest Hill and Gunpowder and others.
What metro area is Harford County in?
Harford County is part of the Baltimore-Columbia-Towson, MD metropolitan statistical area.