Delaware, OH ZIP Code
Delaware, Ohio has one ZIP code: .
Mail addressed to Delaware covers nearby places too.
Where the 43015 ZIP code reaches
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: Delaware city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Delaware
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 Delaware
- 43035, mailing town Lewis Center, covers 2 percent of Delaware
Why your mail may say Delaware when you live outside it
Delaware ZIP codes also cover Troy Township, Brown Township and Liberty Township, so a letter addressed to Delaware can go to a home outside the city limits.
The reverse happens too: parts of Delaware use 43035, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Delaware County property records show which city you are in.
Delaware ZIP code questions
What is the main ZIP code for Delaware?
43015, the ZIP code of the main Delaware post office at 35 S Liberty St.
What county is Delaware in?
Delaware County.
ZIP codes for towns near Delaware
More towns near Delaware: Marion, Reynoldsburg, Grove City, Newark, Mansfield, Springfield, Lancaster, Fairborn, Findlay.
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