02557 ZIP Code — Oak Bluffs, MA

Dukes County, Massachusetts

ZIP code 02557 is located in Oak Bluffs, Massachusetts, within Dukes County. It covers approximately 3.24 square miles and serves a population of 1,924 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 508/774.

About ZIP code 02557

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 $760,000. Owner-occupancy sits near the national average at 73%.

The gap between median ($92,022) and mean household income suggests income inequality — a small number of higher earners pull the average up. 49% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with arts, entertainment, and food service as the leading industry. The average commute of 8 minutes is near the national average.

Educational attainment is near the national average, with 40% of residents holding a bachelor's degree or higher.

1,924

population

3.24

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

02557 ZIP code map

Cities in ZIP code 02557

Below are the cities the US Postal Service accepts for ZIP code 02557. Using any city not on this list may result in mail delivery delays.

City	Status
Oak Bluffs	Acceptable

Demographics updated 06/2026

Population
Total population	1,924
Population density	594 / sq mi
State FIPS	25
County FIPS	007

Geography
Land area	3.24 sq mi
Water area	3.98 sq mi
Latitude	41.4451
Longitude	-70.5647
Timezone	Eastern (ET)
Area code	508/774

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	28.5%	30.1%	31.3%
$50k – $100k	27.0%	31.7%	25.9%
$100k – $200k	29.7%	25.9%	28.5%
Over $200k	14.8%	12.3%	14.3%

Demographics & statistics

1,924

Population

594

People per sq mi

51.5

Median age

$92,022

Median household income

$53,427

Per capita income

$760,000

Median home value

Median monthly rent

72.7%

Home ownership

13.3%

Poverty rate

14.6%

Unemployment

2,458

Housing units

40.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

25–34

35–44

146

45–54

250

55–59

120

60–64

140

65–74

240

75–84

109

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	343	17.8%
18 and over	1,581	82.2%
65 and over	583	30.3%
Median age	51.5 years

Race & ethnicity

White 85.3%

Black or African American 10.7%

Two or more races 2%

Hispanic or Latino 1.2%

Other race 0.8%

Group	Count	%
White	1,662	85.3%
Black or African American	208	10.7%
Two or more races	39	2%
Hispanic or Latino	24	1.2%
Other race	15	0.8%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	28.5%	30.1%	31.3%
$50k – $100k	27.0%	31.7%	25.9%
$100k – $200k	29.7%	25.9%	28.5%
Over $200k	14.8%	12.3%	14.3%

Under $10k 3.8%

$25k–$35k 19.8%

$35k–$50k 6.8%

$50k–$75k 16.4%

$75k–$100k 8.4%

$100k–$150k 29.5%

$150k–$200k 8.7%

$200k+ 6.6%

Range	% of households
Under $10k	3.8%
$25k–$35k	19.8%
$35k–$50k	6.8%
$50k–$75k	16.4%
$75k–$100k	8.4%
$100k–$150k	29.5%
$150k–$200k	8.7%
$200k+	6.6%
Median income	$92,022

Housing

Home values

$50k–$100k 5.2%

$200k–$300k 4.0%

$300k–$500k 8.1%

$500k–$1M 47.9%

$1M+ 34.8%

Housing overview

Metric	Value
Median home value	$760,000
Median rent / month	$0
Owner occupied	72.7%
Renter occupied	27.3%
Vacant	67.8%
Single-family detached	83.8%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	5.6
Avg household size (owned)	2.31

Year built

Era	%
2020 or later	0.0%
2010–2019	4.9%
2000–2009	7.9%
1990–1999	2.7%
1980–1989	15.8%
1970–1979	4.5%
1960–1969	6.6%
1950–1959	8.5%
1940–1949	2.0%
1939 or earlier	47.0%

Bedrooms

Size	% of units
No bedroom (studio)	1.2%
1 bedroom	10.5%
2 bedrooms	15.5%
3 bedrooms	37.7%
4 bedrooms	28.6%
5+ bedrooms	6.4%

Vehicles per household

Vehicles	% of households
No vehicle	6.6%
1 vehicle	36.9%
2 vehicles	39.3%
3 or more	17.2%

Heating fuel

Fuel type	%
Utility gas	3.8%
Electricity	8.2%
Propane / LP gas	27.6%
Fuel oil	52.1%
Wood	8.3%

Households & families

Household type	Count	%
Married-couple family	452	52.1%
Cohabiting couple	80	9.2%
Male householder, no spouse	154	17.8%
Female householder, no spouse	181	20.9%
Households with children under 18	178	20.5%
Households with seniors (65+)	365	42.1%
Average household size	2.11

Marital status

Status	Male	Female
Never married	16.9%	29.9%
Married	68.8%	57.1%
Separated	0.0%	0.0%
Widowed	1.5%	6.8%
Divorced	12.8%	6.2%

Education

Less than 9th grade 0.6%

Some HS, no diploma 4.0%

HS graduate 22.8%

Some college, no degree 20.7%

Associate's degree 11.6%

Bachelor's degree 18.3%

Graduate / professional 22.1%

Metric	%
HS diploma or higher	95.4%
Bachelor's or higher	40.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	111	49.6%
High school	90	40.2%
College / grad school	23	10.3%

Employment

Industry of employment

Arts, food & hospitality 27.7%

Education & healthcare 22.6%

Construction 16.6%

Retail trade 6.3%

Agriculture & mining 6.0%

Other services 5.1%

Professional & management 4.8%

Manufacturing 4.3%

Finance & real estate 3.8%

Information 2.8%

Occupation

Category	%
Management, business & arts	36.9%
Service	28.6%
Sales & office	6.6%
Natural resources & construction	23.5%
Production & transportation	4.3%

Employment type

Type	%
Private sector	88.2%
Government	5.5%
Self-employed	6.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	61.4%
Carpool	17.8%
Public transit	0.0%
Walk	5.1%
Work from home	15.7%
Other means	0.0%
Avg commute (minutes)	7.5

Poverty

All people 13.3%

Under 18 years 0.0%

18 and over 16.2%

Married-couple families 7.3%

Female-led households 0.0%

Income support

Source	% of households
Social Security	49.3%
Retirement income	31.7%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	25.5%
High blood pressure	29.8%
High cholesterol	30.5%
Diabetes	9.0%
Heart disease	6.2%
Stroke	2.9%
Asthma	10.5%
Arthritis	26.8%
Kidney disease	2.8%
Pulmonary disease	5.9%
Cancer	7.6%

Behavior / access	%
Smoking	13.8%
Binge drinking	16.9%
No physical activity	18.9%
Less than 7 hrs sleep	30.5%
Depression	19.4%
Fair or poor health	11.3%
Poor mental health	13.5%
Poor physical health	9.0%
No health insurance	6.0%
Visited doctor (checkup)	78.4%
Visited dentist	73.8%
Cholesterol screening	92.1%
Teeth loss	11.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	58	3.7%

Disability	%
Any disability	18.4%
Under 18	9.3%
18–64 years	24.3%
65 and over	13.7%

Health insurance coverage

Type	%
Private insurance	62.4%
Public insurance	55.9%
No insurance	10.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,828	95.0%
Spanish	68	3.7%
Other Indo-European	9	0.5%
Asian & Pacific Islander	59	3.2%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,865	96.9%
Born in same state	1,821	94.6%
Born in different state	1,207	62.7%
Foreign born	44	2.3%
Naturalized citizen	59	3.1%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	578	30%
German	298	15.5%
French	298	15.5%
English	38	2%

Ancestry	Count	%
Polish	35	1.8%
Arab	32	1.7%
Norwegian	17	0.9%
Irish	9	0.5%

Technology access

Metric	% of households
Computer access	45.1%
Internet access	95.6%

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

Frequently asked questions about ZIP code 02557

What city is ZIP code 02557 in?

ZIP code 02557 is primarily assigned to Oak Bluffs, Massachusetts.

What county is ZIP code 02557 in?

ZIP code 02557 falls within Dukes County, Massachusetts.

Does ZIP code 02557 have an older population?

30% of residents in ZIP code 02557 are 65 or older, above the national average of ~17%.

Does ZIP code 02557 have a large retiree population?

49% of households in ZIP code 02557 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 02557?

The median home value in ZIP code 02557 is $760,000.

What is the population of ZIP code 02557?

ZIP code 02557 has an estimated population of 1,924 residents, with a density of 594 people per square mile.

What timezone is ZIP code 02557 in?

ZIP code 02557 observes the EST timezone.