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/MA/NORTHWEST-HARWICH

Northwest Harwich ZIP codes, Massachusetts

No ZIP code is named for Northwest Harwich, MA; addresses there use a neighbouring town's name. 4 ZIP codes cover it: 02645, 02639, 02646 and 02671. Its area codes are 774 and 508.

USPS city name
0 ZIP codes
Overlapping the city
4 more
Population
3,932
Area codes
774, 508

NANPA lists no telephone rate centre for Northwest Harwich itself, so these are the area codes of the nearest one, Harwich (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Northwest Harwich in numbers

About 3,932 people live in Northwest Harwich, in 1,673 households. The median household income is $107,730 a year, 4% above the Massachusetts median of $103,960 (US: $80,734). The median owner-occupied home is valued at $665,100 (18% above the Massachusetts median), and median gross rent is $2,486 a month. The median age is 56.6; 46.6% of adults 25 and over hold a bachelor's degree or higher (47.3% across Massachusetts); the average commute takes 24 minutes.

Population3,932Northwest Harwich3,932
Households1,673Northwest Harwich1,673
Median age56.6Northwest Harwich56.6Massachusetts40.0US 38.9
Median household income$107,730Northwest Harwich$107,730Massachusetts$103,960US $80,734
Median home value$665,100Northwest Harwich$665,100Massachusetts$562,100US $332,700
Median gross rent$2,486Northwest Harwich$2,486Massachusetts$1,762US $1,413
Bachelor's degree or higher46.6%Northwest Harwich46.6%Massachusetts47.3%US 35.7%
Mean commute24.0 minNorthwest Harwich24.0 minMassachusetts29.1 minUS 26.4 min
Population density493 / sq miNorthwest Harwich493 / sq mi

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

ZIP codes covering Northwest Harwich

These ZIP codes cover part of Northwest Harwich but are addressed as somewhere else.

ZIP codes overlapping Northwest Harwich
ZIP City Type Population Median income Median home
02639 Dennis Port , MA Standard 3,808 $72,567 $514,200
02645 Harwich , MA Standard 11,288 $104,401 $648,200
02646 Harwich Port , MA Standard 1,846 $81,172 $896,000
02671 West Harwich , MA Standard 818 $104,583 $635,100

Map of Northwest Harwich ZIP codes

02639026450264602671

The ZIP codes of Northwest Harwich, MA, 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 Northwest Harwich

The nearest larger towns are East Harwich (5,654 people, 3.9 mi), South Yarmouth (11,552 people, 5.3 mi) and Yarmouth Port (5,961 people, 6.0 mi).

Towns near Northwest Harwich
TownPopulationDistance
Dennis Port 3,691 2.4 mi
South Dennis 3,135 2.4 mi
West Dennis 2,556 3.6 mi
East Harwich 5,654 3.9 mi
East Dennis 3,062 3.9 mi
South Yarmouth 11,552 5.3 mi
Yarmouth Port 5,961 6.0 mi
West Yarmouth 6,194 8.1 mi
Barnstable Town 49,568 13.2 mi
East Sandwich 3,864 17.0 mi
Sandwich 2,890 20.7 mi
Forestdale 3,801 20.9 mi
Sagamore 4,072 22.9 mi
East Falmouth 6,245 24.9 mi

More nearby: every ZIP code in Barnstable County · Massachusetts ZIP codes

Cite this page

zipcodes.pro. “Northwest Harwich, MA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ma/northwest-harwich

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