Washington, MO ZIP Codes, Coordinates & Counties
Washington, Missouri has 1 ZIP code in Franklin county. The approximate center of Washington is 38.531, -91.048. Washington has about 95,520 known street addresses.
ZIP codes in Washington, MO
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 63090 | Franklin | 38.531 | -91.048 |
Counties Washington spans
Franklin
Most common streets in Washington
5th, 8th, 6th, High, Jefferson, Washington, 7th, Main, Country Club, 2nd
Frequently asked questions
What ZIP codes are in Washington, MO?
Washington, Missouri has 1 ZIP code, ranging from 63090 to 63090. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Washington, MO in?
Washington is in Franklin county.
What are the latitude and longitude of Washington, MO?
The approximate center of Washington, Missouri is latitude 38.531, longitude -91.048. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Washington, MO have?
Washington has 1 ZIP code.
How many addresses are in Washington, MO?
Washington, Missouri has about 95,520 known street addresses in the sthan.io US address database.
What are the most common streets in Washington, MO?
Some of the most common street names in Washington are 5th, 8th, 6th, High, Jefferson, Washington.
What cities are near Washington, MO?
Cities near Washington include Union (8 mi), Marthasville (9 mi), Beaufort (10 mi), Augusta (10 mi), Villa Ridge (10 mi).
Cities near Washington
Union, MO (8 mi) Marthasville, MO (9 mi) Beaufort, MO (10 mi) Augusta, MO (10 mi) Villa Ridge, MO (10 mi) New Haven, MO (11 mi) Gray Summit, MO (12 mi) Labadie, MO (12 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database