02558 ZIP Code — Onset, MA

Plymouth County, Massachusetts

ZIP code 02558 is located in Onset, Massachusetts, within Plymouth County. It covers approximately 1.12 square miles and serves a population of 1,820 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 774.

About ZIP code 02558

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $368,400. Owner-occupancy sits near the national average at 74%.

Median household income is $72,586. Poverty affects 18% of residents, above the national average. 40% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with retail trade as the leading industry. The average commute of 16 minutes is near the national average.

College attainment at 16% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include a notable veteran presence at 19% of civilians, above the national average of 7%; and disability rates above the national average at 25%.

Overall, ZIP code 02558 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a strong veteran community, and a significant Social Security-dependent population.

1,820

population

1.12

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

02558 ZIP code map

Cities in ZIP code 02558

Below are the cities the US Postal Service accepts for ZIP code 02558. Using any city not on this list may result in mail delivery delays.

City	Status
Onset	Acceptable

Demographics updated 06/2026

Population
Total population	1,820
Population density	1,625 / sq mi
State FIPS	25
County FIPS	023

Geography
Land area	1.12 sq mi
Water area	1.06 sq mi
Latitude	41.7472
Longitude	-70.6544
Timezone	Eastern (ET)
Area code	774

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	56.0%	26.9%	31.3%
$50k – $100k	24.7%	26.4%	25.9%
$100k – $200k	19.3%	32.1%	28.5%
Over $200k	0.0%	14.6%	14.3%

Demographics & statistics

1,820

Population

1,625

People per sq mi

58.7

Median age

$72,586

Median household income

$45,664

Per capita income

$368,400

Median home value

$1,603

Median monthly rent

74.3%

Home ownership

18.1%

Poverty rate

20.8%

Unemployment

1,478

Housing units

16.4%

Bachelor's or higher

Age distribution

Male Female

5–9

15–19

20–24

25–34

35–44

148

45–54

136

143

55–59

133

103

60–64

128

65–74

118

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	126	6.9%
18 and over	1,694	93.1%
65 and over	575	31.6%
Median age	58.7 years

Race & ethnicity

White 56.5%

Hispanic or Latino 20%

Two or more races 11%

Other race 9.1%

Black or African American 3.5%

Group	Count	%
White	1,285	56.5%
Hispanic or Latino	456	20%
Two or more races	250	11%
Other race	206	9.1%
Black or African American	79	3.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	56.0%	26.9%	31.3%
$50k – $100k	24.7%	26.4%	25.9%
$100k – $200k	19.3%	32.1%	28.5%
Over $200k	0.0%	14.6%	14.3%

Under $10k 6.7%

$10k–$15k 12.3%

$15k–$25k 4.5%

$25k–$35k 2.6%

$35k–$50k 15.5%

$50k–$75k 16.8%

$75k–$100k 9.9%

$100k–$150k 14.2%

$200k+ 17.5%

Range	% of households
Under $10k	6.7%
$10k–$15k	12.3%
$15k–$25k	4.5%
$25k–$35k	2.6%
$35k–$50k	15.5%
$50k–$75k	16.8%
$75k–$100k	9.9%
$100k–$150k	14.2%
$200k+	17.5%
Median income	$72,586

Housing

Home values

$100k–$150k 2.2%

$150k–$200k 5.0%

$200k–$300k 21.9%

$300k–$500k 70.9%

Housing overview

Metric	Value
Median home value	$368,400
Median rent / month	$1,603
Owner occupied	74.3%
Renter occupied	25.7%
Vacant	42.6%
Single-family detached	75.5%
Large apartment buildings	2.9%
Mobile homes	0.0%
Median rooms	4.5
Avg household size (owned)	1.81

Year built

Era	%
2020 or later	0.0%
2010–2019	2.9%
2000–2009	6.1%
1990–1999	4.2%
1980–1989	2.4%
1970–1979	2.9%
1960–1969	8.8%
1950–1959	8.7%
1940–1949	13.1%
1939 or earlier	51.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	13.3%
2 bedrooms	40.5%
3 bedrooms	30.8%
4 bedrooms	10.5%
5+ bedrooms	5.0%

Vehicles per household

Vehicles	% of households
No vehicle	14.2%
1 vehicle	30.8%
2 vehicles	49.1%
3 or more	5.9%

Heating fuel

Fuel type	%
Utility gas	59.7%
Electricity	8.8%
Propane / LP gas	6.1%
Fuel oil	25.5%

Households & families

Household type	Count	%
Married-couple family	282	28.4%
Cohabiting couple	94	9.5%
Male householder, no spouse	316	31.8%
Female householder, no spouse	302	30.4%
Households with children under 18	61	6.1%
Households with seniors (65+)	450	45.3%
Average household size	1.82

Marital status

Status	Male	Female
Never married	30.3%	26.6%
Married	36.2%	34.9%
Separated	5.9%	0.0%
Widowed	10.4%	18.0%
Divorced	17.1%	20.5%

Education

Less than 9th grade 3.2%

Some HS, no diploma 5.3%

HS graduate 40.8%

Some college, no degree 22.1%

Associate's degree 12.3%

Bachelor's degree 10.0%

Graduate / professional 6.4%

Metric	%
HS diploma or higher	91.5%
Bachelor's or higher	16.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	126	67.7%
High school	0	0.0%
College / grad school	60	32.3%

Employment

Industry of employment

Retail trade 18.0%

Arts, food & hospitality 18.0%

Education & healthcare 15.9%

Construction 13.1%

Transportation & utilities 12.1%

Other services 8.9%

Finance & real estate 7.5%

Manufacturing 6.3%

Occupation

Category	%
Management, business & arts	42.4%
Service	21.6%
Sales & office	19.5%
Natural resources & construction	4.4%
Production & transportation	12.0%

Employment type

Type	%
Private sector	86.0%
Government	5.3%
Self-employed	8.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	62.5%
Carpool	5.4%
Public transit	0.0%
Walk	4.6%
Work from home	19.8%
Other means	7.7%
Avg commute (minutes)	16.0

Poverty

All people 18.1%

Under 18 years 0.0%

18 and over 19.5%

Married-couple families 13.1%

Female-led households 0.0%

Income support

Source	% of households
Social Security	40.2%
Retirement income	39.7%
Supplemental Security	8.6%
Cash public assistance	0.0%
Food stamps / SNAP	15.3%

Health indicators

Condition	%
Obesity	26.1%
High blood pressure	35.4%
High cholesterol	33.9%
Diabetes	9.8%
Heart disease	7.3%
Stroke	3.5%
Asthma	11.2%
Arthritis	29.4%
Kidney disease	3.1%
Pulmonary disease	7.2%
Cancer	8.1%

Behavior / access	%
Smoking	16.4%
Binge drinking	16.2%
No physical activity	24.5%
Less than 7 hrs sleep	34.4%
Depression	19.1%
Fair or poor health	13.9%
Poor mental health	14.7%
Poor physical health	10.8%
No health insurance	6.9%
Visited doctor (checkup)	79.7%
Visited dentist	69.2%
Cholesterol screening	91.2%
Teeth loss	12.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	327	19.3%

Disability	%
Any disability	24.6%
Under 18	0.0%
18–64 years	22.6%
65 and over	33.9%

Health insurance coverage

Type	%
Private insurance	66.0%
Public insurance	47.5%
No insurance	9.8%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,820	100.0%
Spanish	15	0.8%
Other Indo-European	0	0.0%
Asian & Pacific Islander	15	0.8%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,805	99.2%
Born in same state	1,805	99.2%
Born in different state	1,630	89.6%
Foreign born	0	0.0%
Naturalized citizen	15	0.8%
Not a US citizen	15	100.0%

Ancestry

Ancestry	Count	%
Italian	817	44.9%
French	290	15.9%

Ancestry	Count	%
Norwegian	36	2%
German	16	0.9%

Technology access

Metric	% of households
Computer access	54.6%
Internet access	91.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 02558

What city is ZIP code 02558 in?

ZIP code 02558 is primarily assigned to Onset, Massachusetts.

What county is ZIP code 02558 in?

ZIP code 02558 falls within Plymouth County, Massachusetts.

Does ZIP code 02558 have an older population?

32% of residents in ZIP code 02558 are 65 or older, above the national average of ~17%.

Does ZIP code 02558 have a large veteran population?

19% of civilians in ZIP code 02558 are veterans, above the national average of ~7%.

What is the poverty rate in ZIP code 02558?

18% of residents in ZIP code 02558 live below the poverty line, above the national average.

Does ZIP code 02558 have a large retiree population?

40% of households in ZIP code 02558 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 02558 in?

ZIP code 02558 observes the EST timezone.