Town of Riverhead, NY ZIP Codes
Town of Riverhead, New York has 3 ZIP codes: 3 for street addresses (, and ).
Your street decides which one you use.
Which Town of Riverhead ZIP code is my address in?
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?
Town of Riverhead ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: Town of Riverhead town limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and county subdivision limits (2024).
All Town of Riverhead ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 11792 | street delivery; mail may be addressed to Wading River Wading River |
| 11901 | street delivery Riverhead |
| 11933 | street delivery; mail may be addressed to Calverton Calverton |
ZIP codes from nearby towns that reach into Town of Riverhead
- 11949, mailing town Manorville, covers 9 percent of Town of Riverhead
Why your mail may say Town of Riverhead when you live outside it
Town of Riverhead ZIP codes also cover Calverton, Riverhead and Northampton, so a letter addressed to Town of Riverhead can go to a home outside the town limits.
The reverse happens too: parts of Town of Riverhead use 11949, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Suffolk County property records show which city you are in.
Town of Riverhead ZIP code questions
What is the main ZIP code for Town of Riverhead?
11901, the ZIP code of the main Riverhead post office at 1210 W Main St.
What county is Town of Riverhead in?
Suffolk County.
ZIP codes for towns near Town of Riverhead
More towns near Town of Riverhead: Milford, New Haven, Stratford, Central Islip, Bridgeport, Town of Islip, Commack, Hamden, Shelton.
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