In which county is ZIP code 63042 located?

ZIP 63042 is listed under St. Louis, MO.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 63042: Hazelwood, MO

ZIP: 63042

County: St. Louis

Coordinates: 38.78090, -90.36690

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 63042, serving Hazelwood in MO. It lies in St. Louis and supports delivery, planning, and address verification.

Primary City	Hazelwood
ZIP Code	63042
County	St. Louis
State	MO
Latitude / Longitude	38.78090, -90.36690
ZIP Type	Standard
Time Zone	Central Time (CT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 63042 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 63042 are listed as 38.78090 / -90.36690, useful for GPS and service checks in and around Hazelwood, MO.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 63042 for mail delivery and general location reference in St. Louis, MO.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Hazelwood within MO.

Frequently Asked Questions

What is the primary city for ZIP code 63042?

The primary city for this ZIP code is Hazelwood, located in MO.

In which county is 63042 located?

ZIP code 63042 is situated within St. Louis, MO.

What are the coordinates for 63042?

The approximate center point is 38.78090 (Latitude) and -90.36690 (Longitude).

Is ZIP code 63042 active?

This page lists ZIP 63042 as Listed based on the latest refresh date shown above.

Does ZIP 63042 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