Postal reference / United States

03450Harrisville, New Hampshire

ZIP code 03450 is a United States postal code for Harrisville, New Hampshire. Its county association is Cheshire County. The map reference point is at 42.9399, -72.0972.

State / territory
New Hampshire
Recorded place name
Harrisville
County association
Cheshire
Estimated coordinate
42.9399, -72.0972
View on OpenStreetMap
ZIP prefix
034 · 28 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
18.555 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

Need the last four digits?

ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.

Find ZIP+4

Explore New Hampshire

Browse the other 280 ZIP codes recorded for New Hampshire, sorted by code with place and county.

New Hampshire directory

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
03444DublinNHCheshire3.8
03457NelsonNHCheshire3.9
03455MarlboroughNHCheshire6.0
03449HancockNHHillsborough6.4
03445SullivanNHCheshire6.7
03458PeterboroughNHHillsborough8.5
03468West PeterboroughNHHillsborough9.0
03465TroyNHCheshire9.0

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

Verify a mailing address

For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.

Open USPS address lookup