Owasso, OK ZIP Code
Owasso, Oklahoma has one ZIP code: .
Mail addressed to Owasso covers nearby places too.
Where the 74055 ZIP code reaches
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Dashed line: Owasso city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Owasso
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 Owasso
- 74021, mailing town Collinsville, covers 8 percent of Owasso
Why your mail may say Owasso when you live outside it
Owasso ZIP codes also cover Limestone, so a letter addressed to Owasso can go to a home outside the city limits.
The reverse happens too: parts of Owasso use 74021, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Tulsa County property records show which city you are in.
Owasso ZIP code questions
What is the main ZIP code for Owasso?
74055, the ZIP code of the main Owasso post office at 1233 N Cedar St.
What county is Owasso in?
Tulsa County, with parts in Rogers County.
ZIP codes for towns near Owasso
More towns near Owasso: Bella Vista, Bentonville, Shawnee, Joplin, Rogers, Springdale, Fayetteville, Edmond, Midwest City.
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