In which county is ZIP code 21230 located?

ZIP 21230 is listed under Baltimore (city), MD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 21230: Baltimore, MD

ZIP: 21230

County: Baltimore (city)

Coordinates: 39.26450, -76.62240

ZIP Type: Standard

Time Zone: Eastern Time (ET)

This profile provides an in-depth look at ZIP code 21230, serving Baltimore in MD. It lies in Baltimore (city) and supports delivery, planning, and address verification.

Primary City	Baltimore
ZIP Code	21230
County	Baltimore (city)
State	MD
Latitude / Longitude	39.26450, -76.62240
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 21230 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 21230 is approximately 39.26450 (latitude) and -76.62240 (longitude). This location sits within Baltimore (city), contributing to regional planning across MD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21230 for mail delivery and general location reference in Baltimore (city), MD.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Baltimore.

Related ZIP Codes (Nearby)

Explore other postal codes near Baltimore within MD.

Frequently Asked Questions

What is the primary city for ZIP code 21230?

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

In which county is 21230 located?

ZIP code 21230 is situated within Baltimore (city), MD.

What are the coordinates for 21230?

The approximate center point is 39.26450 (Latitude) and -76.62240 (Longitude).

Is ZIP code 21230 active?

This page lists ZIP 21230 as Listed based on the latest refresh date shown above.

Does ZIP 21230 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