In which county is ZIP code 21530 located?

ZIP 21530 is listed under Allegany, MD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 21530: Flintstone, MD

ZIP: 21530

County: Allegany

Coordinates: 39.69930, -78.57390

ZIP Type: Standard

Time Zone: Eastern Time (ET)

This profile provides an in-depth look at ZIP code 21530, serving Flintstone in MD. It lies in Allegany and supports delivery, planning, and address verification.

Primary City	Flintstone
ZIP Code	21530
County	Allegany
State	MD
Latitude / Longitude	39.69930, -78.57390
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 21530 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 21530 is approximately 39.69930 (latitude) and -78.57390 (longitude). This location sits within Allegany, contributing to regional planning across MD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21530 for mail delivery and general location reference in Allegany, MD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Flintstone within MD.

Frequently Asked Questions

What is the primary city for ZIP code 21530?

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

In which county is 21530 located?

ZIP code 21530 is situated within Allegany, MD.

What are the coordinates for 21530?

The approximate center point is 39.69930 (Latitude) and -78.57390 (Longitude).

Is ZIP code 21530 active?

This page lists ZIP 21530 as Listed based on the latest refresh date shown above.

Does ZIP 21530 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