| City: | Jamesport, New York |
| County: | Suffolk County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:40:29 PM |
| Population: | 55 [See All] |
| Area Codes: | 631 / 934 |
| Classification: | PO Box |
| Coordinates: | 40.9488, -72.5766 |
| Land Area: | 0.034 sq mi |
| Quick Link: |
Jamesport is a small hamlet on Long Island's North Fork, but its post office serves a region far beyond the 55 residents who live within the ZIP boundary. With 478 PO Boxes and only 16 occupied homes, the adoption rate of 29.9 means this post office maintains nearly 30 boxes for every local household. That's one of the highest regional service ratios in New York State.
| Metric | Count |
|---|---|
| PO Boxes | 478 |
| Occupied Homes | 16 |
| Adoption Rate | 29.9x |
| Business Establishments | 50 |
| Business Employees | 225 |
Why such extreme PO Box demand? The answer lies in the surrounding North Fork wine country. The ZIP serves 50 business establishments employing 225 workers, including wineries, farms, vineyard tasting rooms, and agricultural businesses spread across the region. Many of these businesses use Jamesport mailing addresses even though their physical locations span miles of rural territory along Route 25 and Peconic Bay Boulevard.
This is a PO Box Only Zone. There's no carrier delivery available across this compact 0.20 square mile territory. The post office handles both City carrier routes (68 records) and Rural routes (25 records), indicating mixed service patterns, but all mail ultimately goes to PO Boxes or business delivery points. Route 25, the main North Fork highway, accounts for 69 ZIP+4 records with UNIT designators, suggesting commercial addresses using PO Box Street Addressing.
The year-round population is tiny and aging. Median age is 55.3 years, with just 16 occupied homes and zero rental units (all 16 are owner-occupied). But seasonal patterns show 12 of 42 housing units (28.6%) are used for seasonal or occasional purposes, indicating some vacation use alongside the permanent residents.
Per capita income of $80,267 exceeds New York averages, but median household income data isn't available due to the small sample size. The Census shows unusual commute patterns: 100% of workers drove alone to work, and 183 workers (likely from ACS estimates covering a larger area) work in transportation, warehousing, or utilities. Federal government workers account for 32 positions, possibly related to agricultural programs or USDA services for the wine and farming region.
Jamesport sits on Peconic Bay, with street names like Peconic Bay Boulevard, Bay Run, and Lagoon Court pointing to waterfront access. The hamlet also includes historic roads like Main Road and S Railroad Avenue, remnants of the Long Island Rail Road's North Fork branch that once served the area's agricultural economy.
All mail delivery requires a PO Box. Businesses and residents use:
PO Box [###]
Jamesport, NY 11947Some businesses use PO Box Street Addressing with Route 25 addresses, but these still deliver to PO Boxes at the post office.
Route 25 dominates with 69 commercial/business records. Waterfront streets (Peconic Bay Blvd, Bay Run, Lagoon Ct) and historic roads (Main Rd, S Railroad Ave) reflect the hamlet's agricultural and maritime heritage.
ZIP Code 11947 has 55 residents and 16 households (average 3.44 persons per household). The median age is 55.3 years, significantly older than the state (39.0) and significantly older than the nation (38.8). The gender split is 25.5% male and 74.5% female, which is much lower than the national male share (49.1%), making this a female-majority area. Largest groups are White (94.5%, much higher than the state average of 55.2% and well above the national average of 61.6%) and Asian (3.6%, lower than the state average of 9.6%); Hispanic or Latino residents make up 0.0%, 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: | 55Source: Census DHC |
| 2024 ACS Population Estimate: | 148Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 1,617.6 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 16Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 3.44Source: Census DHC |
| Average Family Size: | 3.40Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 121 | 150 | 114 | 138 | 114 | 105 | 320 | 511 | 486 | 423 | 0 | 153 | 248 | 148 |
| Decennial Census | 416 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 55 | -- | -- | -- | -- |
Median Age: 55.3
Male Median Age: 50.5
Female Median Age: 56.5
| 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 | 0 | 0 | 4 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 4 | 2 | 0 | 0 | 0 | 0 | 0 |
| Female | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 10 | 4 | 6 | 7 | 0 | 1 | 0 | 5 |
| Total | 2 | 0 | 5 | 0 | 1 | 0 | 0 | 6 | 0 | 0 | 12 | 8 | 8 | 7 | 0 | 1 | 0 | 5 |
| White: | 52 | 96.30% |
| Black: | 0 | 0% |
| Hispanic:* | 0 | 0% |
| Asian: | 2 | 3.70% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 54 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 14 | 25.45% | 50.5 years |
| Females: | 41 | 74.55% | 56.5 years |
| Total: | 55 | 100% | 55.3 years |
| Native, born in the United States: | 148 | 100.00% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 0 | 0.00% |
| Foreign born, not a U.S. citizen: | 0 | 0.00% |
| Total Population: | 148 | 100% |
| Total Native Population: | 148 | 100.00% |
| Total Foreign-born Population: | 0 | 0.00% |
In 2024, the Median household income is $0, which is well under the national median ($80,734), is down $29,186 (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 $0 and female is $0, which is considerably lower than the national female median ($55,274), with a current gap of $0 that has stayed about the same from 2011 to 2024. The labor-force participation rate is 100.0%, which is much higher than 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 (48.5%).
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 | $29,186 | $29,458 | $24,300 | $26,913 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Family Income | $0 | $160,417 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $27,009 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $66,652 | $0 | $0 | $0 | $0 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $50,964 | $54,188 | $97,292 | $0 | $0 | $0 | $0 |
| Employed: | 97 | 100.00% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 0 | 0.00% |
| Total: | 97 | 100% |
| Management, business, science, and arts: | 47 | 48.45% |
| Service: | 19 | 19.59% |
| Sales and Office: | 31 | 31.96% |
| Natural resources, construction, and maintenance: | 0 | 0.00% |
| Production, transportation, and material moving: | 0 | 0.00% |
| Total Civilian Employed Population: | 97 | 100% |
In 2024, the median home value is $0, which is much lower than the national median ($332,700), is down $432,600 (100.00%) since 2011 and below its 2019 pre-pandemic level by $646,200. The median gross rent is $0, which is well under the national median ($1,413), and above its 2019 pre-pandemic level by $0. Insufficient data for owner/renter mix. Insufficient data for vacancy rate.
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 | $432,600 | $455,700 | $363,200 | $361,500 | $349,000 | $352,000 | $0 | $659,100 | $646,200 | $628,800 | $0 | $0 | $0 | $0 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 0 | 0.00% |
| $1,000 to $1,499: | 30 | 100.00% |
| $1,500 to $1,999: | 0 | 0.00% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 0 | 0.00% |
| No Rent: | 0 | 0.00% |
| Total: | 30 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 17 | 36.17% |
| Owner Occupied (free and clear, no mortgage): | 0 | 0.00% |
| Renter Occupied: | 30 | 63.83% |
| Total Occupied Housing Units: | 47 | 100% |
| Occupied Housing Units: | 47 | 100.00% |
| Vacant Housing Units (not graphed): | 0 | 0.00% |
| Total Housing Units: | 47 | 100% |
| Single-Family Units: | 17 | 36.17% |
| Multi-Family Units: | 30 | 63.83% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 47 | 100% |
In 2024, 48.50% 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 comparable to the national rate (89.60%). The uninsured rate is 20.90%, which is comparable to the national rate (8.40%). Public coverage is 0.00%, which is far lower 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. Among residents ages 3+, the largest enrollment group is high school (66.67%). College enrollment is 33.33%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
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): | 31 | 31.96% |
| Some college, no degree: | 19 | 19.59% |
| Associate's degree: | 0 | 0.00% |
| Bachelor's degree: | 47 | 48.45% |
| Graduate or professional degree: | 0 | 0.00% |
| Total: | 97 | 100% |
| High school or higher: | 97 | 100.00% |
| Bachelor's degree or higher: | 47 | 48.45% |
| Private Insurance: | 117 | 79.05% |
| Public Insurance: | 0 | 0.00% |
| No Insurance: | 31 | 20.95% |
| Total: | 148 | 100% |
| Has Health Insurance: | 117 | 79.05% |
| 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 | 0.00% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 0 | 0.00% |
| High school (grades 9-12): | 34 | 66.67% |
| College or graduate school: | 17 | 33.33% |
| Total: | 51 | 100% |
| Early Childhood: | 0 | 0.00% |
| K-12 (Primary & Secondary School): | 34 | 66.67% |
ZIP Code 11947 supports both business and residential activity. According to the Business Census (2024), there are 50 business establishments, employing about 230 people with an annual payroll of $9,771,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 1,337Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 50Source: CBP |
| 1st Quarter Payroll: | $2,090,000Source: CBP |
| Annual Payroll: | $9,771,000Source: CBP |
| # of Employees: | 230Source: CBP |
ZIP Code 11947 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 11947, and is subdivided into the Nassau County-Suffolk County, NY division. It covers 0.034 sq mi of land and a water area of 0 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: | 0.034 sq miSource: Census |
| Water Area: | --Source: 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: | 3638253Source: Census |
| Place Name: | Jamesport CDP; New YorkSource: Census |
We could not locate which school district 11947 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 March 1, 2026.