Clarkstown, NY ZIP Codes
Clarkstown, New York has 5 ZIP codes: 5 for street addresses (, , , and ).
Your street decides which one you use.
Which Clarkstown 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?
Clarkstown ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: Clarkstown town limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and county subdivision limits (2024).
All Clarkstown ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 10920 | street delivery; mail may be addressed to Congers Congers |
| 10954 | street delivery; mail may be addressed to Nanuet Bardonia |
| 10956 | street delivery; mail may be addressed to New City New City |
| 10989 | street delivery; mail may be addressed to Valley Cottage Valley Cottage |
| 10994 | street delivery; mail may be addressed to West Nyack West Nyack |
ZIP codes from nearby towns that reach into Clarkstown
- 10960, mailing town Nyack, covers 5 percent of Clarkstown
Why your mail may say Clarkstown when you live outside it
Clarkstown ZIP codes also cover New City, Nanuet and Valley Cottage, so a letter addressed to Clarkstown can go to a home outside the town limits.
The reverse happens too: parts of Clarkstown use 10960, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Rockland County property records show which city you are in.
Clarkstown ZIP code questions
What is the main ZIP code for Clarkstown?
10920, the ZIP code of the main Congers post office at 14 Old Haverstraw Rd.
What county is Clarkstown in?
Rockland County.
ZIP codes for towns near Clarkstown
More towns near Clarkstown: Mount Pleasant, Cortlandt, Greenburgh, Yorktown, White Plains, Yonkers, Town of Eastchester, Fair Lawn, Mount Vernon.
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