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 — CITY/NH/NEWFIELDS

Newfields ZIP code, New Hampshire

The ZIP code for Newfields, NH is 03856, and its area code is 603.

USPS city name
1 ZIP code
Population
294
Area code
603

NANPA lists no telephone rate centre for Newfields itself, so these are the area codes of the nearest one, Newmarket (2.5 miles). A town on an area-code boundary can differ from its neighbour.

Newfields in numbers

About 294 people live in Newfields, in 114 households. The median household income is $185,769 a year, 88% above the New Hampshire median of $99,031 (US: $80,734). The median owner-occupied home is valued at $484,100 (20% above the New Hampshire median), and median gross rent is $1,889 a month. The median age is 49.5; 72.9% of adults 25 and over hold a bachelor's degree or higher (40.6% across New Hampshire); the average commute takes 28 minutes.

Population294Newfields294
Households114Newfields114
Median age49.5Newfields49.5New Hampshire43.3US 38.9
Median household income$185,769Newfields$185,769New Hampshire$99,031US $80,734
Median home value$484,100Newfields$484,100New Hampshire$402,500US $332,700
Median gross rent$1,889Newfields$1,889New Hampshire$1,491US $1,413
Bachelor's degree or higher72.9%Newfields72.9%New Hampshire40.6%US 35.7%
Mean commute28.3 minNewfields28.3 minNew Hampshire26.7 minUS 26.4 min
Population density774 / sq miNewfields774 / sq mi

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

ZIP codes addressed as Newfields

ZIP codes with the USPS city name Newfields
ZIP City Type Population Median income Median home
03856 Newfields , NH Standard 2,023 $197,885 $646,400

Map of Newfields ZIP codes

03856

The ZIP codes of Newfields, NH, 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.

Towns near Newfields

The nearest larger towns are Newmarket (5,679 people, 2.8 mi), Exeter (9,964 people, 4.1 mi) and Durham (10,681 people, 7.4 mi).

Towns near Newfields
TownPopulationDistance
Newmarket 5,679 2.8 mi
Exeter 9,964 4.1 mi
Durham 10,681 7.4 mi
Epping 2,796 8.0 mi
Portsmouth 22,545 8.2 mi
Hampton 10,101 8.5 mi
South Eliot, ME 4,203 10.1 mi
Hampton Beach 2,605 10.6 mi
Dover 33,364 10.8 mi
Kittery, ME 5,110 10.8 mi
Raymond 3,645 11.9 mi
Amesbury, MA 17,403 12.8 mi
Salisbury, MA 5,656 14.9 mi
South Berwick, ME 3,381 15.2 mi

More nearby: every ZIP code in Rockingham County · New Hampshire ZIP codes

Cite this page

zipcodes.pro. “Newfields, NH ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nh/newfields

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