Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/NH/COUNTY/GRAFTON

Grafton County, NH ZIP codes

There are 39 ZIP codes in Grafton County, NH, in 38 towns, from 03215 to 03785. The largest are 03766 (Lebanon), 03755 (Hanover) and 03561 (Littleton).

The county seat is Haverhill.

ZIP codes
39
Towns
38
County seat
Haverhill
County FIPS
33009
Population
92,120
Median household income
$88,261
Land area
1,709 sq mi
Area code
603

Grafton County ZIP codes by town

Haverhill (county seat)
03765

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Grafton County ZIP codes

The ZIP codes of Grafton County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Grafton County in numbers

About 92,120 people live in Grafton County, in 37,107 households, the 5th most populous of New Hampshire's 10 counties. The median household income is $88,261 a year, 11% below the New Hampshire median of $99,031 (US: $80,734). The median owner-occupied home is valued at $344,500 (14% below the New Hampshire median), and median gross rent is $1,301 a month. The median age is 44.1; 46.7% of adults 25 and over hold a bachelor's degree or higher (40.6% across New Hampshire); the average commute takes 22 minutes.

Population92,120Grafton92,120
Households37,107Grafton37,107
Median age44.1Grafton44.1New Hampshire43.3US 38.9
Median household income$88,261Grafton$88,261New Hampshire$99,031US $80,734
Median home value$344,500Grafton$344,500New Hampshire$402,500US $332,700
Median gross rent$1,301Grafton$1,301New Hampshire$1,491US $1,413
Bachelor's degree or higher46.7%Grafton46.7%New Hampshire40.6%US 35.7%
Mean commute22.2 minGrafton22.2 minNew Hampshire26.7 minUS 26.4 min
Population density54 / sq miGrafton54 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Grafton County

Largest towns in Grafton County
TownZIP codesPopulation
Lebanon 2 14,999
Hanover 1 8,479
Plymouth 1 4,969
Littleton 1 4,114
West Lebanon 1 3,804
Campton 1 3,441
Thornton 1 2,799
Rumney 1 2,130
Bristol 1 2,098
Enfield 1 1,994
Holderness 1 1,917
Lyme 1 1,710
Woodsville 1 1,422
Ashland 1 1,404
Franconia 1 1,402

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Grafton County.

Not sure you are in Grafton County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Grafton County, with figures

ZIP codes in Grafton County
ZIP City Type Population Median income Median home
03215 Waterville Valley , NH Standard 290 $105,625 $562,500
03217 Ashland , NH Standard 2,183 $54,607 $227,000
03222 Bristol , NH Standard 6,097 $81,587 $313,000
03223 Campton , NH Standard 3,441 $118,534 $356,400
03238 Glencliff , NH Standard 64 $47,067 $189,900
03240 Grafton , NH Standard 1,354 $81,563 $267,300
03241 Hebron , NH Standard 1,150 $91,375 $470,700
03245 Holderness , NH Standard 1,917 $107,863 $363,100
03251 Lincoln , NH Standard 1,461 $70,625 $342,000
03262 North Woodstock , NH Standard 1,142 $85,667 $319,800
03264 Plymouth , NH Standard 6,885 $76,892 $288,800
03266 Rumney , NH Standard 2,130 $76,071 $281,900
03279 Warren , NH Standard 878 $70,313 $253,100
03282 Wentworth , NH Standard 1,052 $98,333 $304,500
03285 Thornton , NH Standard 2,799 $90,022 $351,900
03293 Woodstock , NH Standard 72 $86,250 $325,000
03561 Littleton , NH Standard 6,040 $56,746 $282,900
03574 Bethlehem , NH Standard 2,573 $81,250 $288,300
03580 Franconia , NH Standard 1,402 $91,250 $497,100
03585 Lisbon , NH Standard 2,456 $68,594 $233,700
03586 Sugar Hill , NH Standard 658 $154,091 $639,700
03740 Bath , NH Standard 1,097 $67,813 $234,400
03741 Canaan , NH Standard 4,131 $82,181 $257,500
03748 Enfield , NH Standard 4,563 $95,089 $388,500
03749 Enfield Center , NH No street area — — —
03750 Etna , NH Standard 1,116 $250,000+ $881,000
03755 Hanover , NH Standard 10,569 $165,884 $814,600
03756 Lebanon , NH No street area — — —
03765 Haverhill , NH Standard 513 $79,625 $262,500
03766 Lebanon , NH Standard 11,195 $100,881 $395,600
03768 Lyme , NH Standard 1,710 $133,906 $645,000
03769 Lyme Center , NH No street area — — —
03771 Monroe , NH Standard 786 $88,150 $312,700
03774 North Haverhill , NH Standard 1,420 $58,452 $227,900
03777 Orford , NH Standard 1,295 $92,571 $271,900
03779 Piermont , NH Standard 868 $80,000 $341,600
03780 Pike , NH Standard 1,071 $189,550 $617,800
03784 West Lebanon , NH Standard 3,804 $91,000 $371,500
03785 Woodsville , NH Standard 2,018 $57,902 $244,100

Cite this page

zipcodes.pro. “Grafton County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/nh/county/grafton

Underlying data is public domain or openly licensed — sources, vintages and licences.