New Hampshire Zip Codes

225 zip codes in New Hampshire. Capital: Concord. Nickname: Granite State.

Quick Facts

Total ZIP codes: 225
Counties covered: 10
Cities and places: 189
Top cities by ZIP count: Portsmouth, Hudson, Manchester
Time zone: Eastern Time (ET)
Capital: Concord

Top ZIP Rankings in New Hampshire

Ranked top 10 lists by household income, population, and home value.

New Hampshire

Cheapest ZIP Codes

New Hampshire

Highest Income ZIP Codes

New Hampshire

Most Populated ZIP Codes

About New Hampshire Zip Codes

New Hampshire (NH), known as the Granite State, with its capital in Concord, contains 225 unique USPS ZIP codes distributed across 10 counties and 189 distinct cities and places. The state observes Eastern Time (ET). ZIP codes here cover residential addresses, PO box ranges, business districts, and unique large-volume customer codes.

The cities with the most ZIP codes in New Hampshire are Portsmouth, Hudson, Manchester, Keene, Nashua. Larger metro areas use multiple ZIP codes to separate neighborhoods, business districts, and PO box ranges. The counties with the highest ZIP density are Rockingham County, Hillsborough County, Grafton County, Merrimack County, Carroll County, reflecting both population and geographic spread.

New Hampshire ZIP codes range from 03031 to 03894. The first digit reflects the USPS national region and the next two narrow down to a sectional center facility that routes mail across the state. Use the lists below to browse every ZIP code by county or by city, or jump straight to a ZIP for population, income, housing, weather, and cost of living details.

Browse by County

Browse by Top Cities

Portsmouth (5)
Hudson (4)
Manchester (4)
Keene (4)
Nashua (3)
Concord (3)
Antrim (3)
Alton (3)
Rochester (3)
Goffstown (2)
Greenville (2)
Milford (2)
Salem (2)
Andover (2)
Center Barnstead (2)
Belmont (2)
Sullivan (2)
Berlin (2)
Alstead (2)
Newport (2)
Conway (2)
Milton (2)
Amherst (1)
Auburn (1)
Brookline (1)

All Zip Codes in New Hampshire

Belknap County (12 ZIP codes)

Zip Code	City
03218	Center Barnstead
03220	Belmont
03225	Center Barnstead
03226	Center Harbor
03237	Belmont
03246	Laconia
03253	Meredith
03256	New Hampton
03269	Sanbornton
03809	Alton
03810	Alton
03837	Alton

Carroll County (25 ZIP codes)

Zip Code	City
03227	Center Sandwich
03254	Moultonborough
03259	North Sandwich
03812	Bartlett
03813	Center Conway
03814	Center Ossipee
03816	Wolfeboro Falls
03817	Chocorua
03818	Conway
03830	East Wakefield
03832	Eaton Center
03836	Freedom
03838	Glen
03845	Intervale
03846	Jackson
03849	Madison
03853	Mirror Lake
03860	Conway
03864	Ossipee
03872	Sanbornville
03875	Silver Lake
03882	Effingham
03883	South Tamworth
03886	Tamworth
03894	Wolfeboro

Cheshire County (24 ZIP codes)

Zip Code	City
03431	Keene
03441	Ashuelot
03443	Chesterfield
03444	Dublin
03445	Sullivan
03446	Keene
03447	Fitzwilliam
03448	Gilsum
03450	Harrisville
03451	Hinsdale
03452	Jaffrey
03455	Keene
03456	Marlow
03457	Sullivan
03461	Rindge
03462	Spofford
03464	Stoddard
03465	Keene
03466	West Chesterfield
03467	Westmoreland
03470	Winchester
03602	Alstead
03608	Walpole
03609	North Walpole

Coos County (12 ZIP codes)

Zip Code	City
03570	Berlin
03576	Colebrook
03579	Errol
03581	Gorham
03582	Groveton
03583	Jefferson
03584	Lancaster
03588	Berlin
03590	North Stratford
03592	Pittsburg
03595	Twin Mountain
03598	Whitefield

Grafton County (30 ZIP codes)

Zip Code	City
03215	Waterville Valley
03217	Ashland
03222	Bristol
03223	Campton
03240	Grafton
03241	Hebron
03251	Lincoln
03262	North Woodstock
03264	Plymouth
03266	Rumney
03279	Warren
03282	Wentworth
03561	Littleton
03574	Bethlehem
03580	Franconia
03585	Lisbon
03741	Canaan
03748	Enfield
03750	Etna
03755	Hanover
03765	Haverhill
03766	Lebanon
03768	Lyme
03771	Monroe
03774	North Haverhill
03777	Orford
03779	Piermont
03780	Pike
03784	West Lebanon
03785	Woodsville

Hillsborough County (34 ZIP codes)

Zip Code	City
03031	Amherst
03033	Brookline
03043	Francestown
03045	Goffstown
03047	Greenfield
03048	Greenville
03049	Hollis
03051	Hudson
03052	Hudson
03054	Merrimack
03055	Milford
03057	Milford
03060	Nashua
03062	Hudson
03063	Nashua
03064	Nashua
03070	New Boston
03071	New Ipswich
03076	Hudson
03082	Lyndeborough
03084	Greenville
03086	Wilton
03101	Manchester
03102	Goffstown
03103	Manchester
03104	Manchester
03109	Manchester
03110	Bedford
03244	Hillsborough
03281	Weare
03440	Antrim
03442	Antrim
03449	Antrim
03458	Peterborough

Merrimack County (25 ZIP codes)

Zip Code	City
03106	Hooksett
03216	Andover
03221	Bradford
03224	Canterbury
03229	Contoocook
03230	Danbury
03233	Elkins
03234	Epsom
03235	Franklin
03242	Henniker
03243	Hill
03255	Newbury
03257	New London
03260	North Sutton
03263	Pittsfield
03268	Salisbury
03273	South Sutton
03275	Pembroke
03276	Tilton
03278	Warner
03287	Andover
03301	Concord
03303	Concord
03304	Bow
03307	Concord

Rockingham County (35 ZIP codes)

Zip Code	City
03032	Auburn
03034	Candia
03036	Chester
03037	Deerfield
03038	Derry
03042	Epping
03044	Fremont
03053	Londonderry
03077	Raymond
03079	Salem
03087	Salem
03261	Northwood
03290	Nottingham
03291	West Nottingham
03801	Portsmouth
03811	Atkinson
03819	Danville
03826	East Hampstead
03827	East Kingston
03833	Exeter
03840	Greenland
03841	Hampstead
03842	Portsmouth
03844	Hampton Falls
03848	Kingston
03854	New Castle
03856	Newfields
03857	Newmarket
03858	Newton
03862	North Hampton
03865	Plaistow
03870	Portsmouth
03873	Sandown
03874	Portsmouth
03885	Portsmouth

Strafford County (13 ZIP codes)

Zip Code	City
03820	Dover
03824	Durham
03825	Barrington
03835	Farmington
03839	Rochester
03852	Milton
03855	New Durham
03867	Rochester
03868	Rochester
03869	Rollinsford
03878	Somersworth
03884	Strafford
03887	Milton

Sullivan County (15 ZIP codes)

Zip Code	City
03280	Washington
03284	Springfield
03601	Acworth
03603	Charlestown
03605	Lempster
03607	Alstead
03743	Claremont
03745	Cornish Flat
03751	Georges Mills
03752	Goshen
03753	Grantham
03770	Meriden
03773	Newport
03781	Plainfield
03782	Newport

Frequently Asked Questions

How many ZIP codes does New Hampshire have?

New Hampshire has 225 ZIP codes spanning 189 cities and places across 10 counties.

What are the major cities in New Hampshire?

The cities with the most ZIP codes in New Hampshire are Portsmouth, Hudson, Manchester, Keene, Nashua. Larger metro areas use multiple ZIP codes to cover individual neighborhoods.

Which county has the most ZIP codes in New Hampshire?

Rockingham County has the most with 35 ZIP codes. The next largest counties are Hillsborough County, Grafton County, Merrimack County, Carroll County.

What time zone is New Hampshire in?

New Hampshire observes Eastern Time (ET).

What is the smallest ZIP code number in New Hampshire?

The lowest ZIP code in New Hampshire is 03031.

What is the largest ZIP code number in New Hampshire?

The highest ZIP code in New Hampshire is 03894.

How are ZIP codes structured in New Hampshire?

USPS ZIP codes are five digit numbers. The first digit indicates a broad U.S. region, the second and third narrow to a sectional center facility, and the last two identify a specific post office or delivery area. New Hampshire ZIP codes typically begin with "0".

What states border New Hampshire?

New Hampshire borders Maine, Vermont, Massachusetts.

Nearby States

Data Sources

Population, income, housing, age, and demographics: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
ZIP to city and county mapping: USPS and HUD-USPS ZIP-County Crosswalk.
Time zones and area codes: IANA tz database and NANPA.
Elevation: U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
Last refreshed: 2026-05-18.

Methodology