In which county is ZIP code 30090 located?

ZIP 30090 is listed under Cobb County, GA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 30090: Marietta, GA

ZIP: 30090

County: Cobb County

Coordinates: 33.95250, -84.54710

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Marietta, GA postal area 30090. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Marietta
ZIP Code	30090
County	Cobb County
State	GA
Latitude / Longitude	33.95250, -84.54710
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 30090 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 30090 is approximately 33.95250 (latitude) and -84.54710 (longitude). This location sits within Cobb County, contributing to regional planning across GA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 30090 for mail delivery and general location reference in Cobb County, GA.

Some addresses near Marietta may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Marietta within GA.

Frequently Asked Questions

What is the primary city for ZIP code 30090?

The primary city for this ZIP code is Marietta, located in GA.

In which county is 30090 located?

ZIP code 30090 is situated within Cobb County, GA.

What are the coordinates for 30090?

The approximate center point is 33.95250 (Latitude) and -84.54710 (Longitude).

Is ZIP code 30090 active?

This page lists ZIP 30090 as Listed based on the latest refresh date shown above.

Does ZIP 30090 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