In which county is ZIP code 63090 located?

ZIP 63090 is listed under Franklin, MO.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 63090: Washington, MO

ZIP: 63090

County: Franklin

Coordinates: 38.54590, -91.01930

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 63090 in Washington, MO. We include verified county details for Franklin plus key geographic references used for mapping and logistics.

Primary City	Washington
ZIP Code	63090
County	Franklin
State	MO
Latitude / Longitude	38.54590, -91.01930
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 63090 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 63090 is approximately 38.54590 (latitude) and -91.01930 (longitude). This location sits within Franklin, contributing to regional planning across MO.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 63090 for mail delivery and general location reference in Franklin, MO.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Washington within MO.

Frequently Asked Questions

What is the primary city for ZIP code 63090?

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

In which county is 63090 located?

ZIP code 63090 is situated within Franklin, MO.

What are the coordinates for 63090?

The approximate center point is 38.54590 (Latitude) and -91.01930 (Longitude).

Is ZIP code 63090 active?

This page lists ZIP 63090 as Listed based on the latest refresh date shown above.

Does ZIP 63090 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