In which county is ZIP code 21036 located?

ZIP 21036 is listed under Howard, MD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 21036: Dayton, MD

ZIP: 21036

County: Howard

Coordinates: 39.23390, -76.99680

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Dayton, MD postal area 21036. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Dayton
ZIP Code	21036
County	Howard
State	MD
Latitude / Longitude	39.23390, -76.99680
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 21036 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 21036 is approximately 39.23390 (latitude) and -76.99680 (longitude). This location sits within Howard, contributing to regional planning across MD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21036 for mail delivery and general location reference in Howard, MD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Dayton within MD.

Frequently Asked Questions

What is the primary city for ZIP code 21036?

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

In which county is 21036 located?

ZIP code 21036 is situated within Howard, MD.

What are the coordinates for 21036?

The approximate center point is 39.23390 (Latitude) and -76.99680 (Longitude).

Is ZIP code 21036 active?

This page lists ZIP 21036 as Listed based on the latest refresh date shown above.

Does ZIP 21036 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