Washington, UT ZIP Code
Washington, Utah has one ZIP code: .
Mail addressed to Washington covers nearby places too.
Where the 84780 ZIP code reaches
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: Washington city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Washington
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
ZIP codes from nearby towns that reach into Washington
- 84737, mailing town Hurricane, covers 4 percent of Washington
Why your mail may say Washington when you live outside it
A letter addressed to Washington can go to a home outside the city limits, because ZIP areas follow delivery routes, not town lines.
The reverse happens too: parts of Washington use 84737, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Washington County property records show which city you are in.
Washington ZIP code questions
What is the main ZIP code for Washington?
84780, the ZIP code of the main Saint George post office at 1150 E Riverside Dr.
What county is Washington in?
Washington County.
ZIP codes for towns near Washington
More towns near Washington: Henderson, Las Vegas, Paradise, Spring Valley, Summerlin South, Enterprise, Kingman, Bullhead City, Pahrump.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections