| City: | South Jamesport, New York |
| City Alias: | S Jamesport |
| County: | Suffolk County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:40:48 PM |
| Population: | 454 [See All] |
| Area Codes: | 631 / 934 |
| Classification: | PO Box |
| Coordinates: | 40.9403, -72.5726 |
| Land Area: | 0.394 sq mi |
| Quick Link: |
South Jamesport is a small waterfront community on the north shore of Long Island with 454 residents and 200 occupied households. The median age of 59 reflects a predominantly older population that's drawn to this quiet corner of Suffolk County. The community covers just 0.27 square miles of land along Peconic Bay, and it's served entirely by PO Box mail delivery through 234 boxes.
The post office maintains more PO Boxes than there are local households, with an adoption rate of 1.17 indicating the facility serves residents from surrounding areas without carrier delivery. Rural carrier routes handle the small amount of street delivery in the area, though most addresses use the PO Box system. Streets like Peconic Bay Boulevard and Saint Marys Drive follow the waterfront geography, while numbered streets (2nd through 6th) suggest a small grid pattern from an earlier era of development.
Street names reflect the waterfront location with Peconic Bay Boulevard and Point Street, while a small numbered grid (2nd, 3rd, 4th, 6th Streets) indicates a traditional town layout. The presence of S Jamesport Ave connects to the larger Jamesport area to the north.
ZIP Code 11970 has 454 residents and 200 households (average 2.27 persons per household). The median age is 59.0 years, significantly older than the state (39.0) and significantly older than the nation (38.8). The gender split is 47.1% male and 52.9% female, which is slightly lower than the national male share (49.1%), making this a female-majority area. Largest groups are White (90.1%, much higher than the state average of 55.2% and well above the national average of 61.6%) and Hispanic or Latino (11.9%); Hispanic or Latino residents make up 11.9%, which is much lower than the state average (19.5%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 454Source: Census DHC |
| 2024 ACS Population Estimate: | 416Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 1,152.3 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 200Source: Census DHC |
| Average House Value: | $779,900Source: Census ACS |
| Persons Per Household: | 2.27Source: Census DHC |
| Average Family Size: | 3.13Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 846 | 600 | 505 | 466 | 284 | 111 | 104 | 264 | 212 | 391 | 523 | 563 | 468 | 416 |
| Decennial Census | 522 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 454 | -- | -- | -- | -- |
Median Age: 59
Male Median Age: 60.5
Female Median Age: 57.8
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 8 | 8 | 12 | 11 | 8 | 7 | 5 | 7 | 2 | 14 | 10 | 13 | 13 | 26 | 25 | 22 | 11 | 12 |
| Female | 8 | 7 | 11 | 17 | 7 | 10 | 7 | 5 | 2 | 19 | 18 | 21 | 19 | 18 | 25 | 23 | 6 | 17 |
| Total | 16 | 15 | 23 | 28 | 15 | 17 | 12 | 12 | 4 | 33 | 28 | 34 | 32 | 44 | 50 | 45 | 17 | 29 |
| White: | 409 | 84.16% |
| Black: | 5 | 1.03% |
| Hispanic:* | 54 | 11.11% |
| Asian: | 1 | 0.21% |
| American Indian: | 1 | 0.21% |
| Hawaiian: | 0 | 0% |
| Other: | 16 | 3.29% |
| Total: | 486 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 214 | 47.14% | 60.5 years |
| Females: | 240 | 52.86% | 57.8 years |
| Total: | 454 | 100% | 59.0 years |
| Native, born in the United States: | 344 | 82.69% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 72 | 17.31% |
| Foreign born, not a U.S. citizen: | 0 | 17.31% |
| Total Population: | 416 | 100% |
| Total Native Population: | 344 | 82.69% |
| Total Foreign-born Population: | 72 | 17.31% |
In 2024, the Median household income is $0, which is well under the national median ($80,734), is down $104,917 (100.0%) since 2011 and above its 2019 pre-pandemic level by $0. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $250,001 and female is $0, which is considerably lower than the national female median ($55,274), with a current gap of $250,001 that has widened from 2011 to 2024. The labor-force participation rate is 28.8%, which is markedly below the national rate (63.5%). The unemployment rate is 0.0%, which is considerably lower than the national rate (5.2%). The largest occupation group is Management (80.8%).
Explore More: Income Over Time Household Income Employment Status By Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $104,917 | $121,350 | $108,558 | $110,761 | $0 | $0 | $0 | $0 | $0 | $21,900 | $0 | $0 | $0 | $0 |
| Median Family Income | $117,656 | $131,250 | $131,756 | $134,329 | $225,408 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median NonFamily Income | $47,337 | $47,220 | $48,478 | $47,989 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $60,284 | $63,194 | $63,528 | $65,556 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $250,001 | $250,001 |
| Median Female Income | $65,952 | $73,070 | $73,267 | $75,306 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 120 | 28.85% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 296 | 71.15% |
| Total: | 416 | 100% |
| Management, business, science, and arts: | 97 | 80.83% |
| Service: | 0 | 0.00% |
| Sales and Office: | 23 | 19.17% |
| Natural resources, construction, and maintenance: | 0 | 0.00% |
| Production, transportation, and material moving: | 0 | 0.00% |
| Total Civilian Employed Population: | 120 | 100% |
In 2024, the median home value is $779,900, which is considerably higher than the national median ($332,700), is up $412,900 (112.51%) since 2011 and above its 2019 pre-pandemic level by $779,900. The median gross rent is $0, which is well under the national median ($1,413), is down $1,310 (100.00%) since 2011 and above its 2019 pre-pandemic level by $0. Of occupied housing, owners make up 100.00% (71.86% with a mortgage, 28.14% free-and-clear) and renters 0.00% - making this ZIP Code under national rental averages. The vacancy rate is 34.54%, which is far higher than the national rate (10.12%).
Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $367,000 | $386,000 | $370,900 | $364,600 | $365,800 | $0 | $0 | $0 | $0 | $0 | $695,200 | $0 | $729,000 | $779,900 |
| Less than $500: | 0 | 0% |
| $500 to $999: | 0 | 0% |
| $1,000 to $1,499: | 0 | 0% |
| $1,500 to $1,999: | 0 | 0% |
| $2,000 to $2,499: | 0 | 0% |
| $2,500 to $2,999: | 0 | 0% |
| $3,000 or more: | 0 | 0% |
| No Rent: | 0 | 0% |
| Total: | 0 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $1,310 | $1,308 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 143 | 71.86% |
| Owner Occupied (free and clear, no mortgage): | 56 | 28.14% |
| Renter Occupied: | 0 | 0.00% |
| Total Occupied Housing Units: | 199 | 100% |
| Occupied Housing Units: | 199 | 65.46% |
| Vacant Housing Units (not graphed): | 105 | 34.54% |
| Total Housing Units: | 304 | 100% |
| Single-Family Units: | 304 | 100.00% |
| Multi-Family Units: | 0 | 0.00% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 304 | 100% |
In 2024, 62.30% of adults (25+) have a bachelor's degree or higher, which is far higher than the national rate (35.70%). High school or higher is 100.00%, which is far higher than the national rate (89.60%). The uninsured rate is 0.00%, which is comparable to the national rate (8.40%). Private coverage is 89.20%, which is well above the national rate (67.10%). Public coverage is 71.20%, which is far higher than the national rate (36.70%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.80%). Poverty has been broadly stable, which may reflect structural barriers or offsetting gains and setbacks. Insufficient data for school enrollment.
Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment
| Less than 9th grade: | 0 | 0.00% |
| 9th to 12th grade, no diploma: | 0 | 0.00% |
| High school graduate (includes equivalency): | 45 | 10.82% |
| Some college, no degree: | 0 | 0.00% |
| Associate's degree: | 112 | 26.92% |
| Bachelor's degree: | 155 | 37.26% |
| Graduate or professional degree: | 104 | 25.00% |
| Total: | 416 | 100% |
| High school or higher: | 416 | 100.00% |
| Bachelor's degree or higher: | 259 | 62.26% |
| Private Insurance: | 371 | 55.62% |
| Public Insurance: | 296 | 44.38% |
| No Insurance: | 0 | 0.00% |
| Total: | 667 | 100% |
| Has Health Insurance: | 667 | 100.00% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0% |
| Kindergarten: | 0 | 0% |
| Elementary school (grades 1-8): | 0 | 0% |
| High school (grades 9-12): | 0 | 0% |
| College or graduate school: | 0 | 0% |
| Total: | 0 | 100% |
| Early Childhood: | 0 | 0% |
| K-12 (Primary & Secondary School): | 0 | 0% |
ZIP Code 11970 supports both business and residential activity. According to the Business Census (2024), there are 10 business establishments, employing about 28 people with an annual payroll of $1,441,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 253Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 10Source: CBP |
| 1st Quarter Payroll: | $257,000Source: CBP |
| Annual Payroll: | $1,441,000Source: CBP |
| # of Employees: | 28Source: CBP |
ZIP Code 11970 is located in Suffolk County, New York, within the New York-Newark-Jersey City, NY-NJ Metropolitan Statistical Area (CBSA 35620) and New York's 1st Congressional District. This Metro area has a population of 18,897,109 people, about 0.00% of whom live in ZIP Code 11970, and is subdivided into the Nassau County-Suffolk County, NY division. It covers 0.394 sq mi of land and a water area of 0.023 sq mi.
| CBSA Name: | New York-Newark-Jersey City, NY-NJSource: Census |
| CBSA Number: | 35620Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Nassau County-Suffolk County, NY (CBSA Div 35004)Source: Census |
| CBSA Population: | 18,897,109Source: Census |
| MSA: | New York-Northern New Jersey-Long Island, NY-NJ-CT-PASource: Census |
| Land Area: | 0.394 sq miSource: Census |
| Water Area: | 0.023 sq miSource: Census |
| Congressional District: | 01Source: USPS |
| Congressional Land Area: | 650.02 sq miSource: Census |
| PMSA: | Nassau-Suffolk, NY PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 11970 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.