In which county is ZIP code 63012 located?

ZIP 63012 is listed under Jefferson, MO.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 63012: Barnhart, MO

ZIP: 63012

County: Jefferson

Coordinates: 38.33840, -90.41420

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 63012, serving Barnhart in MO. It lies in Jefferson and supports delivery, planning, and address verification.

Primary City	Barnhart
ZIP Code	63012
County	Jefferson
State	MO
Latitude / Longitude	38.33840, -90.41420
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 63012 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 63012 is approximately 38.33840 (latitude) and -90.41420 (longitude). This location sits within Jefferson, contributing to regional planning across MO.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 63012 for mail delivery and general location reference in Jefferson, MO.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Barnhart within MO.

Frequently Asked Questions

What is the primary city for ZIP code 63012?

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

In which county is 63012 located?

ZIP code 63012 is situated within Jefferson, MO.

What are the coordinates for 63012?

The approximate center point is 38.33840 (Latitude) and -90.41420 (Longitude).

Is ZIP code 63012 active?

This page lists ZIP 63012 as Listed based on the latest refresh date shown above.

Does ZIP 63012 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