ZIP Code 21403: Annapolis, MD
County: Anne Arundel County
Coordinates: 38.95240, -76.49100
ZIP Type: Standard
Time Zone: Eastern Time (ET)
Get a reliable snapshot of the Annapolis, MD postal area 21403. This page summarizes county, coordinates, and local facts to help with services and location research.
| Primary City | Annapolis |
|---|
| ZIP Code | 21403 |
|---|
| County | Anne Arundel County |
|---|
| State | MD |
|---|
| Latitude / Longitude | 38.95240, -76.49100 |
|---|
| ZIP Type | Standard |
|---|
| Time Zone | Eastern Time (ET) |
|---|
| Data Updated | 2026-01-08 |
|---|
Advertisement
Maps & Useful Links
Open in Maps:
Google Maps ·
OpenStreetMap
These links show the approximate center point for ZIP 21403 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 21403 is approximately 38.95240 (latitude) and -76.49100 (longitude). This location sits within Anne Arundel County, contributing to regional planning across MD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21403 for mail delivery and general location reference in
Anne Arundel County,
MD.
Some addresses near Annapolis may share this ZIP due to delivery routing and local service areas.
Related ZIP Codes (Nearby)
Explore other postal codes near Annapolis within MD.
Advertisement
Frequently Asked Questions
What is the primary city for ZIP code 21403?
The primary city for this ZIP code is Annapolis, located in MD.
In which county is 21403 located?
ZIP code 21403 is situated within Anne Arundel County, MD.
What are the coordinates for 21403?
The approximate center point is 38.95240 (Latitude) and -76.49100 (Longitude).
Is ZIP code 21403 active?
This page lists ZIP 21403 as Listed based on the latest refresh date shown above.
Does ZIP 21403 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
Advertisement
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