Townapedia
Onset Beach
Onset Beach · David M. Green, CC BY-SA 3.0
Greetings from Onset, Cape Cod, Massachusetts - Large Letter Postcard (5274375730)
Greetings from Onset, Cape Cod, Massachusetts - Large Letter Postcard (5274375730) · Steve Shook from Moscow, Idaho, USA, CC BY 2.0
Onset Avenue streetcars postcard
Onset Avenue streetcars postcard · Unknown author Unknown author, Public domain
The Square, Onset, Massachusetts - 1919 postcard
The Square, Onset, Massachusetts - 1919 postcard · Unknown author Unknown author, Public domain
1912 postcard of Onset Avenue and streetcar station
1912 postcard of Onset Avenue and streetcar station · Unknown author Unknown author, Public domain
Streetcar on Onset Avenue, Onset - postcard
Streetcar on Onset Avenue, Onset - postcard · Unknown author Unknown author, Public domain

Onset, Massachusetts

Onset is a community of 1,380 people in Plymouth County, Massachusetts.

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Population1,380 +83.0% since 2019
Elevation10 ft 3 m
Land area1.1 sq mi
ZIP codes02538, 02558, 02571
Nearest airportCape Cod Coast Guard Air Station (FMH) 9 mi

Why visit Onset

Townapedia lists 5 museums and landmarks, 24 parks and trails, 6 places to eat, 1 place to stay and 5 attractions in and around town.

Highlights include Bourne Highway Bridge, Cape Cod Canal Railroad Bridge, Aptucxet Trading Post Museum and Gypsy.

July is the warmest month, with average highs of 81°F; January lows average 22°F, and about 37 inches of snow fall in a normal year.

About Onset

Onset is a census-designated place (CDP) in the town of Wareham, Massachusetts, United States. As of the 2020 census, Onset had a population of 1,617.

From the Wikipedia article Onset, Massachusetts (this version), under CC BY-SA 4.0.

Things to do5

Bourne Highway Bridge

Bridge · 3.4 mi

Bridge in Bourne, Massachusetts

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Cape Cod Canal Railroad Bridge

Bridge · 2.8 mi

Movable railroad bridge in Massachusetts

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Prospect Park

Cinema and theater · 0.5 mi

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Brandy Hill

Scenic view · 1.2 mi

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Wankinco Neck

Scenic view · 1.6 mi

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Museums and landmarks5

Aptucxet Trading Post Museum

Monument and historic site · National Register of Historic Places · 3.2 mi

American historical museum in Massachusetts

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Gypsy

Monument and historic site · National Register of Historic Places · 0.6 mi

Historic catboat (type of sailboat)

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Tobey Homestead

Monument and historic site · National Register of Historic Places · 2.6 mi

Historic house in Massachusetts, United States

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Tremont Nail Factory District

Monument and historic site · National Register of Historic Places · 3.2 mi

Historic district in Massachusetts, United States

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Bourne Town Hall

Monument and historic site · National Register of Historic Places · 3.4 mi

Open in Google Maps · Wikipedia

Parks, trails and playgrounds24

Water Wizz

Sports field and stadium · 0.9 mi

3031 Cranberry Highway, East Wareham

Open in Google Maps · +1 508 295 3255

Little Harbor Country Club

Golf course · 1.1 mi

9 Little Harbor Road, Wareham

Open in Google Maps · +1 508-295-2617

Great Neck Wildlife Sanctuary

Hiking and trails · 1.4 mi

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Longwood Park

Park

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Minot Forest

Hiking and trails · 1.3 mi

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New England Forestry Foundation

Hiking and trails · 1.3 mi

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Wabassa Park

Park

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Minot Forest

Hiking and trails · 1.4 mi

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Wabun Park

Park · 0.5 mi

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Wildlands Trust - Great Neck Conservation Area

Hiking and trails · 1.3 mi

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Agawam Mill Pond Access

Hiking and trails · 1.4 mi

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Bay Pointe

Golf course · 1.3 mi

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12 more on the map.

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Restaurants and cafes6

Chili's

Restaurant · Tex-Mex · 1.0 mi

2885 Cranberry Highway

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Marc Anthony's La Pizzeria

Restaurant · Pizza · 0.4 mi

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McDonald's

Fast food · Burger · 1.0 mi

3022;3020 Cranberry Highway, Wareham

Mo-Su 05:00-23:00

Open in Google Maps · +1 508-295-2101

Subway

Fast food · Sandwich · 1.0 mi

2890 Cranberry Highway, East Wareham

Mo-Fr 08:00-20:00; Sa 08:00-20:30; Su 08:00-20:00

Open in Google Maps · +1 508-295-1148

China Chef

Fast food · Chinese · 1.2 mi

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Santoros Pizza & Subs

Fast food · Pizza · 1.2 mi

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History

Onset was developed in the 1880s as a summer camp meeting for Spiritualists. Many of the existing cottages in Onset were built as second homes for individuals from Boston, Taunton, Brockton and other northeastern cities who gathered to hear mediums communicate with the dead. While it was run by the Spiritualists, the village was known as Onset Bay Grove.

From the History section of Onset, Massachusetts on Wikipedia, under CC BY-SA 4.0.

Where to stay1

Churches and places of worship1

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Shopping2

Gas and EV charging2

Schools, colleges and libraries14

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Healthcare1

Map of Onset

61 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

20°40°60°80°January: 4.2 in of rainFebruary: 3.7 in of rainMarch: 5.6 in of rainApril: 4.6 in of rainMay: 3.8 in of rainJune: 3.7 in of rainJuly: 3.1 in of rainAugust: 3.6 in of rainSeptember: 4.5 in of rainOctober: 5.0 in of rainNovember: 4.5 in of rainDecember: 5.0 in of rainJanuary: 39°FFebruary: 40°FMarch: 46°FApril: 56°FMay: 66°FJune: 75°FJuly: 81°FAugust: 80°FSeptember: 73°FOctober: 63°FNovember: 53°FDecember: 44°FJanuary: 22°FFebruary: 22°FMarch: 28°FApril: 37°FMay: 48°FJune: 57°FJuly: 64°FAugust: 63°FSeptember: 55°FOctober: 44°FNovember: 35°FDecember: 27°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRainSnow
Jan39°F22°F4.2 in12.9 in
Feb40°F22°F3.7 in9.2 in
Mar46°F28°F5.6 in7.3 in
Apr56°F37°F4.6 in1.3 in
May66°F48°F3.8 in0.0 in
Jun75°F57°F3.7 in0.0 in
Jul81°F64°F3.1 in0.0 in
Aug80°F63°F3.6 in0.0 in
Sep73°F55°F4.5 in0.0 in
Oct63°F44°F5.0 in0.0 in
Nov53°F35°F4.5 in0.2 in
Dec44°F27°F5.0 in6.3 in

U.S. Climate Normals 1991-2020 for E Wareham (1 mi away), NOAA NCEI.

People and cost of living

$137,997median household income
$408,300median home value
34.4median age
28.6%of adults have a bachelor's degree or higher
89.1%of homes are owner-occupied
14.9 minaverage commute
Age of residents
Under 1824%18 to 3429%35 to 6436%65 and over10%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

Plymouth County has had 20 federal disaster declarations since 2000, most often for hurricanes.

  • 2023-09-15: Hurricane Lee (Hurricane)
  • 2022-04-18: Severe Winter Storm And Snowstorm (Snowstorm)
  • 2020-03-27: Covid-19 Pandemic (Biological)
  • 2020-03-13: Covid-19 (Biological)
  • 2018-06-25: Severe Winter Storm And Flooding (Severe Storm)
  • 2015-04-13: Severe Winter Storm, Snowstorm, And Flooding (Severe Storm)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Cape Cod Coast Guard Air Station (FMH) is the nearest airport with scheduled flights listed in OpenStreetMap, 9 miles away.

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.