City · Maryland · United States
Darlington, MD — ZIP codes
1 ZIP code · Harford County
- City
- Darlington
- County
- Harford
- State
- Maryland
- Country
- United States
- Postal code
- 21034Single source
- Coordinates
- 39.6540, -76.2278 View on OpenStreetMap
- Area codes
- 667, 443, 410
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 21034 | Darlington | Single source |
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Last generated : 2026-08-21. Report an error.