Sullivan County ZIP Codes
New Hampshire, United States · 17 codes
Sullivan County in New Hampshire has 17 ZIP codes, from 03280 to 03782, serving 17 places.
ZIP codes in Sullivan
Frequently asked questions
What is the ZIP code of Sullivan?
Sullivan has 17 ZIP codes, from 03280 to 03782. The table lists the places each one serves.
How many places are listed in Sullivan County?
17 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.