Farmington, MO Zip Code: Your Guide

Nick Leason

-Oct 22, 2025

Curious about the Farmington, MO zip code? Located in St. Francois County, Farmington is a city with a rich history and a growing community. This guide will provide you with the essential zip code information, helping you with everything from mail delivery to understanding local demographics and connecting with services in the area.

Key Takeaways

Farmington, MO's primary zip code is 63640.
Understanding zip codes is crucial for efficient mail delivery and locating local services.
Farmington is a vibrant community with a variety of businesses, schools, and recreational opportunities.
This guide offers a quick reference for residents and those planning to move to the area.

Introduction

Farmington, Missouri, a charming city in the heart of St. Francois County, is known for its friendly atmosphere and diverse community. Whether you're a long-time resident, a recent transplant, or simply curious about the area, knowing the correct zip code is a fundamental piece of information. The zip code isn't just for mail; it also helps you connect with local businesses, schools, and services, making daily life easier.

What & Why

The Importance of Zip Codes

Zip codes, like 63640 for Farmington, are essential for efficient mail delivery by the United States Postal Service (USPS). They act as a critical sorting mechanism, ensuring that letters, packages, and other mail items reach their intended destinations promptly and accurately. Beyond mail, zip codes are useful for:

Local Service Identification: Zip codes help in locating services like healthcare providers, schools, and local businesses within your area.
Demographic Data: Zip codes are used in gathering and analyzing demographic data, providing insights into community characteristics.
Online Shopping and Shipping: When ordering online, zip codes are critical for calculating shipping costs and ensuring delivery.
Emergency Services: Emergency services often use zip codes to determine the quickest response routes.

Benefits of Knowing Farmington, MO's Zip Code

Knowing the zip code for Farmington, MO (63640) offers numerous advantages, including: — St. Paul Weather Radar: Live Updates & Forecasts

Accurate Mail Delivery: Ensuring that your mail arrives without delay.
Easy Access to Local Services: Quickly finding local businesses, healthcare, and other essential services.
Precise Online Transactions: Simplifying online shopping and shipping processes.
Improved Navigation: Helping with GPS and mapping services to find locations within Farmington.

Potential Risks of Incorrect Zip Codes

Using the wrong zip code can lead to:

Mail Delivery Delays: Mail may be misdirected or delayed significantly.
Incorrect Service Locating: Difficulty in finding services within the immediate area.
Shipping Issues: Problems with shipping costs, delivery times, and even delivery failure for online orders.
Emergency Service Delays: Inaccuracies in location for emergency services.

How-To / Steps / Framework Application

How to Find Farmington's Zip Code

The primary zip code for Farmington, MO is 63640. This zip code covers most of the city. To find it, use these methods:

USPS Website: Visit the official USPS website and use their zip code lookup tool. Just enter the city and state.
Online Search: Use search engines like Google or Bing. Simply search "Farmington, MO zip code."
Use a Map: Online map services like Google Maps often display zip code boundaries if you zoom in on a specific area.
Ask a Local: Ask a local resident or business owner for confirmation.

Step-by-Step Guide to Using the Zip Code

When Addressing Mail: Write the full address, including the recipient's name, street address, city (Farmington), state (MO), and the zip code (63640).
Online Forms: Fill in the zip code accurately in any online forms, especially for shipping or service registration.
For Navigation: Use the zip code when using GPS or mapping apps to find a specific address or business within Farmington.

Examples & Use Cases

Example 1: Mailing a Letter

Sender: Your Name, Your Address, City, State, Zip Code
Recipient: John Doe, 123 Main Street, Farmington, MO 63640

Example 2: Ordering Online

When making an online purchase, ensure the shipping address includes the correct zip code (63640) for Farmington to ensure delivery and accurate shipping costs.

Example 3: Finding a Local Business

Use the zip code 63640 when searching online or using a directory to locate businesses in Farmington, MO.

Best Practices & Common Mistakes

Best Practices

Double-Check: Always double-check the zip code before sending mail or providing the information.
Update Addresses: Update your address with the correct zip code on any important documents or accounts.
Verify Online: Verify the zip code when filling out online forms, especially for shipping addresses.

Common Mistakes

Using the Wrong Zip Code: This can lead to delays or misdelivery of mail.
Misspelling: Misspelling the city or state name can cause confusion.
Omitting the Zip Code: Leaving out the zip code altogether can cause delivery problems.
Using an Outdated Zip Code: Zip codes can sometimes change, so ensure you have the current one.

FAQs

What is the main zip code for Farmington, MO? The primary zip code is 63640.
How do I find a specific zip code for an address in Farmington? Use the USPS website's zip code lookup tool and enter the street address.
Do zip codes change in Farmington? While rare, zip codes can change. Always verify the current zip code if you are unsure.
Why is the zip code important for online shopping? The zip code is essential for calculating shipping costs and ensuring accurate delivery. — Returning An Amazon Gift: Step-by-Step Guide
What is the zip code used for besides mail? Zip codes are also used for finding local services, demographic data collection, and emergency services. — How To Change Your Life: A Step-by-Step Guide
Where can I find a map of zip codes in Farmington? Online map services, like Google Maps, often show zip code boundaries when you zoom in on the area.

Conclusion with CTA

Knowing the correct zip code for Farmington, MO (63640) is crucial for various everyday tasks, from mail delivery to accessing local services. Make sure you use the correct zip code to ensure accurate delivery and enjoy all the conveniences that Farmington has to offer. For further information about Farmington and its community, visit the city's official website or contact the local post office.

Last updated: October 26, 2023, 10:00 UTC