In which county is ZIP code 63640 located?

ZIP 63640 is listed under St. Francois, MO.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 63640: Farmington, MO

ZIP: 63640

County: St. Francois

Coordinates: 37.77730, -90.40940

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 63640, serving Farmington in MO. It lies in St. Francois and supports delivery, planning, and address verification.

Primary City	Farmington
ZIP Code	63640
County	St. Francois
State	MO
Latitude / Longitude	37.77730, -90.40940
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 63640 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 63640 is approximately 37.77730 (latitude) and -90.40940 (longitude). This location sits within St. Francois, contributing to regional planning across MO.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 63640 for mail delivery and general location reference in St. Francois, MO.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Farmington within MO.

Frequently Asked Questions

What is the primary city for ZIP code 63640?

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

In which county is 63640 located?

ZIP code 63640 is situated within St. Francois, MO.

What are the coordinates for 63640?

The approximate center point is 37.77730 (Latitude) and -90.40940 (Longitude).

Is ZIP code 63640 active?

This page lists ZIP 63640 as Listed based on the latest refresh date shown above.

Does ZIP 63640 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