11970 ZIP Code — South Jamesport, NY

Suffolk County, New York

ZIP code 11970 is located in South Jamesport, New York, within Suffolk County. It covers approximately 0.39 square miles and serves a population of 563 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 631.

About ZIP code 11970

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character.

The dominant occupation class is sales and office, with professional and management as the leading industry. Remote work is prevalent — 75% of workers work from home.

Educational attainment is high — 52% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Notable community characteristics include disability rates above the national average at 31%.

Overall, ZIP code 11970 reflects a community defined by a highly educated population, high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.

563

population

0.39

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

11970 ZIP code map

Cities in ZIP code 11970

Below are the cities the US Postal Service accepts for ZIP code 11970. Using any city not on this list may result in mail delivery delays.

City	Status
South Jamesport	Acceptable

Demographics updated 06/2026

Population
Total population	563
Population density	1,444 / sq mi
State FIPS	36
County FIPS	103

Geography
Land area	0.39 sq mi
Water area	0.02 sq mi
Latitude	40.9403
Longitude	-72.5726
Timezone	Eastern (ET)
Area code	631

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	84.4%	22.6%	37.0%
$50k – $100k	0.0%	24.7%	27.0%
$100k – $200k	15.6%	34.6%	24.4%
Over $200k	0.0%	18.0%	11.5%

Demographics & statistics

563

Population

1,444

People per sq mi

70.1

Median age

Median household income

$104,443

Per capita income

Median home value

Median monthly rent

100.0%

Home ownership

8.7%

Poverty rate

16.5%

Unemployment

456

Housing units

51.9%

Bachelor's or higher

Age distribution

Male Female

25–34

45–54

55–59

65–74

106

75–84

111

← Male

Female →

Age summary

Group	Count	%
Under 18	0	0.0%
18 and over	563	100.0%
65 and over	333	59.1%
Median age	70.1 years

Race & ethnicity

White 93.8%

Asian 6.2%

Group	Count	%
White	528	93.8%
Asian	35	6.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	84.4%	22.6%	37.0%
$50k – $100k	0.0%	24.7%	27.0%
$100k – $200k	15.6%	34.6%	24.4%
Over $200k	0.0%	18.0%	11.5%

$15k–$25k 17.8%

$25k–$35k 32.0%

$50k–$75k 7.3%

$100k–$150k 22.5%

$200k+ 20.4%

Range	% of households
$15k–$25k	17.8%
$25k–$35k	32.0%
$50k–$75k	7.3%
$100k–$150k	22.5%
$200k+	20.4%
Median income	$0

Housing

Home values

$50k–$100k 13.8%

$500k–$1M 48.0%

$1M+ 38.2%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	39.7%
Single-family detached	100.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	7.5
Avg household size (owned)	2.05

Year built

Era	%
2020 or later	12.3%
2010–2019	0.0%
2000–2009	10.7%
1990–1999	0.0%
1980–1989	8.3%
1970–1979	34.6%
1960–1969	13.4%
1950–1959	8.1%
1940–1949	9.2%
1939 or earlier	3.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	0.0%
3 bedrooms	45.0%
4 bedrooms	34.6%
5+ bedrooms	20.4%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	27.6%
2 vehicles	58.5%
3 or more	13.8%

Heating fuel

Fuel type	%
Utility gas	65.8%
Propane / LP gas	20.4%
Wood	13.8%

Households & families

Household type	Count	%
Married-couple family	226	82.2%
Cohabiting couple	49	17.8%
Male householder, no spouse	0	0.0%
Female householder, no spouse	0	0.0%
Households with children under 18	0	0.0%
Households with seniors (65+)	181	65.8%
Average household size	2.05

Marital status

Status	Male	Female
Never married	0.0%	0.0%
Married	82.2%	83.0%
Separated	0.0%	0.0%
Widowed	0.0%	17.0%
Divorced	17.8%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 20.1%

Some college, no degree 0.0%

Associate's degree 28.1%

Bachelor's degree 33.6%

Graduate / professional 18.3%

Metric	%
HS diploma or higher	100.0%
Bachelor's or higher	51.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	0	0.0%
College / grad school	0	0.0%

Employment

Industry of employment

Professional & management 29.2%

Finance & real estate 27.1%

Retail trade 25.5%

Manufacturing 18.2%

Occupation

Category	%
Management, business & arts	29.2%
Service	0.0%
Sales & office	52.6%
Natural resources & construction	0.0%
Production & transportation	18.2%

Employment type

Type	%
Private sector	100.0%
Government	0.0%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	25.5%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Work from home	74.5%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 8.7%

Under 18 years 0.0%

18 and over 8.7%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	48.0%
Retirement income	48.0%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	25.6%
High blood pressure	35.6%
High cholesterol	37.4%
Diabetes	9.8%
Heart disease	7.6%
Stroke	3.1%
Asthma	9.0%
Arthritis	26.7%
Kidney disease	3.2%
Pulmonary disease	6.6%
Cancer	10.1%

Behavior / access	%
Smoking	11.5%
Binge drinking	14.2%
No physical activity	20.7%
Less than 7 hrs sleep	30.6%
Depression	15.9%
Fair or poor health	10.4%
Poor mental health	11.0%
Poor physical health	8.9%
No health insurance	7.0%
Visited doctor (checkup)	82.9%
Visited dentist	74.6%
Cholesterol screening	95.6%
Teeth loss	8.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	20	3.6%

Disability	%
Any disability	30.7%
Under 18	0.0%
18–64 years	0.0%
65 and over	52.0%

Health insurance coverage

Type	%
Private insurance	82.9%
Public insurance	59.1%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	563	100.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	479	85.1%
Born in same state	479	85.1%
Born in different state	423	75.1%
Foreign born	0	0.0%
Naturalized citizen	84	14.9%
Not a US citizen	49	58.3%

Ancestry

Ancestry	Count	%
Italian	197	35%

Ancestry	Count	%
Arab	103	18.3%

Technology access

Metric	% of households
Computer access	48.8%
Internet access	100.0%

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

Frequently asked questions about ZIP code 11970

What city is ZIP code 11970 in?

ZIP code 11970 is primarily assigned to South Jamesport, New York.

What county is ZIP code 11970 in?

ZIP code 11970 falls within Suffolk County, New York.

Does ZIP code 11970 have an older population?

59% of residents in ZIP code 11970 are 65 or older, above the national average of ~17%.

Does ZIP code 11970 have a large retiree population?

48% of households in ZIP code 11970 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 11970?

52% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the population of ZIP code 11970?

ZIP code 11970 has an estimated population of 563 residents, with a density of 1,429 people per square mile.

What timezone is ZIP code 11970 in?

ZIP code 11970 observes the EST timezone.