In which county is ZIP code 21034 located?

ZIP 21034 is listed under Harford, MD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 21034: Darlington, MD

ZIP: 21034

County: Harford

Coordinates: 39.65400, -76.22780

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 21034 in Darlington, MD. We include verified county details for Harford plus key geographic references used for mapping and logistics.

Primary City	Darlington
ZIP Code	21034
County	Harford
State	MD
Latitude / Longitude	39.65400, -76.22780
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 21034 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 21034 is commonly represented around 39.65400, -76.22780. These coordinates help identify the general area within Harford, MD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21034 for mail delivery and general location reference in Harford, MD.

This ZIP may extend beyond the city core into nearby communities within Harford.

Related ZIP Codes (Nearby)

Explore other postal codes near Darlington within MD.

Frequently Asked Questions

What is the primary city for ZIP code 21034?

The primary city for this ZIP code is Darlington, located in MD.

In which county is 21034 located?

ZIP code 21034 is situated within Harford, MD.

What are the coordinates for 21034?

The approximate center point is 39.65400 (Latitude) and -76.22780 (Longitude).

Is ZIP code 21034 active?

This page lists ZIP 21034 as Listed based on the latest refresh date shown above.

Does ZIP 21034 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08