| City: | Great River, New York |
| County: | Suffolk County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:39:30 PM |
| Population: | 1,385 [See All] |
| Area Codes: | 631 / 934 |
| Classification: | PO Box |
| Coordinates: | 40.7198, -73.1545 |
| Land Area: | 3.553 sq mi |
| Quick Link: |
Great River is an affluent residential community on Long Island's South Shore in Suffolk County, New York. With 1,385 residents across 470 households, this 3.8 square mile area sits along the Connetquot River estuary. The community's name comes from this waterway, and street names like River Road, Great River Road, and Woodhollow Road reflect the quiet, wooded character of the neighborhood.
This is a PO Box Only Zone. No street delivery exists here. The Great River post office maintains 540 PO Boxes for 470 households, a 1.15:1 adoption rate that shows the post office serves both local residents and people from surrounding areas. Mail reaches residents through one rural carrier route covering the territory, supplemented by PO Box pickup at the post office.
Great River is one of Long Island's wealthiest communities. Median household income reaches $133,393, and median home values stand at $840,400. Nearly 60% of adults hold bachelor's degrees or higher. The high educational attainment and income levels reflect a professional, white-collar population. With 38% working from home, many residents appear to be executives, consultants, or remote professionals. The median age of 47.5 years indicates an established, mature community rather than young families.
Homeownership dominates the housing market. Of 479 total housing units, 433 are owner-occupied (92%), while only 37 are rentals. Just 3 units are seasonal or vacation homes. This isn't a vacation community. It's a year-round residential enclave. The high ownership rate and substantial home values suggest long-term residents who've invested in the community.
Great River sits among several neighboring South Shore communities. East Islip lies 0.4 miles west, Oakdale 0.8 miles north, West Sayville 2.2 miles east, and Islip 2.2 miles northwest. Despite its small size and lack of street delivery, Great River maintains its distinct identity and separate ZIP code, likely dating back decades before 2004 when ZIP tracking began.
All mail to Great River addresses requires PO Box delivery. Street addresses aren't valid for USPS delivery in this ZIP code. The proper format is:
[Recipient Name]
PO Box [Number]
Great River, NY 11739Street names like River Road, Great River Road, and Woodhollow Road emphasize the quiet, wooded, riverside character of this residential enclave.
ZIP Code 11739 has 1,385 residents and 470 households (average 2.95 persons per household). The median age is 47.5 years, significantly older than the state (39.0) and significantly older than the nation (38.8). The gender split is 49.5% male and 50.5% female, which is slightly higher than the state male share (48.4%). Largest groups are White (90.4%, much higher than the state average of 55.2% and well above the national average of 61.6%) and Hispanic or Latino (6.6%); Hispanic or Latino residents make up 6.6%, 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: | 1,385Source: Census DHC |
| 2024 ACS Population Estimate: | 1,225Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 389.8 people per sq mile |
| Average Income: | $164,286Source: Census ACS |
| Households: | 470Source: Census DHC |
| Average House Value: | $853,100Source: Census ACS |
| Persons Per Household: | 2.95Source: Census DHC |
| Average Family Size: | 2.89Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 1,556 | 1,473 | 1,467 | 1,421 | 1,297 | 1,119 | 1,042 | 1,027 | 916 | 1,307 | 1,685 | 1,400 | 1,191 | 1,225 |
| Decennial Census | 1,223 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1,385 | -- | -- | -- | -- |
Median Age: 47.5
Male Median Age: 45.5
Female Median Age: 48.9
| 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 | 31 | 47 | 30 | 52 | 47 | 42 | 31 | 35 | 27 | 26 | 57 | 70 | 66 | 38 | 39 | 28 | 13 | 7 |
| Female | 30 | 32 | 29 | 48 | 51 | 38 | 36 | 20 | 30 | 36 | 64 | 73 | 81 | 39 | 31 | 21 | 11 | 29 |
| Total | 61 | 79 | 59 | 100 | 98 | 80 | 67 | 55 | 57 | 62 | 121 | 143 | 147 | 77 | 70 | 49 | 24 | 36 |
| White: | 1,252 | 89.75% |
| Black: | 16 | 1.15% |
| Hispanic:* | 92 | 6.59% |
| Asian: | 19 | 1.36% |
| American Indian: | 1 | 0.07% |
| Hawaiian: | 0 | 0% |
| Other: | 15 | 1.08% |
| Total: | 1,395 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 686 | 49.53% | 45.5 years |
| Females: | 699 | 50.47% | 48.9 years |
| Total: | 1,385 | 100% | 47.5 years |
| Native, born in the United States: | 1,173 | 95.76% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 52 | 4.24% |
| Foreign born, not a U.S. citizen: | 0 | 4.24% |
| Total Population: | 1,225 | 100% |
| Total Native Population: | 1,173 | 95.76% |
| Total Foreign-born Population: | 52 | 4.24% |
In 2024, the Median household income is $164,286, which is markedly greater than the national median ($80,734), is up $36,473 (28.5%) since 2011 and above its 2019 pre-pandemic level by $10,328. Family households earn a median of $192,109 versus $27,868 for nonfamily households (a difference of $164,241). By gender, male median income is $130,662 and female is $110,179, which is much higher than the national female median ($55,274), with a current gap of $20,483 that has widened from 2011 to 2024. The labor-force participation rate is 67.4%, which is above the national rate (63.5%). The unemployment rate is 4.5%, which is narrowly below the national rate (5.2%). The largest occupation group is Management (62.7%).
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 | $127,813 | $222,321 | $129,620 | $119,773 | $129,464 | $140,000 | $135,781 | $142,917 | $153,958 | $155,608 | $162,708 | $164,464 | $133,393 | $164,286 |
| Median Family Income | $177,303 | $234,267 | $223,333 | $130,926 | $147,143 | $198,500 | $197,917 | $151,458 | $163,750 | $184,375 | $190,357 | $236,250 | $184,600 | $192,109 |
| Median NonFamily Income | $44,250 | $27,303 | $55,250 | $63,000 | $84,000 | $93,088 | $81,250 | $71,071 | $72,639 | $0 | $0 | $0 | $0 | $27,868 |
| Median Male Income | $81,071 | $159,276 | $160,050 | $101,295 | $102,228 | $104,327 | $103,678 | $107,928 | $90,500 | $90,882 | $95,568 | $112,500 | $108,750 | $130,662 |
| Median Female Income | $64,643 | $86,406 | $63,125 | $65,987 | $68,021 | $95,208 | $98,750 | $72,279 | $56,875 | $73,333 | $61,607 | $81,125 | $107,308 | $110,179 |
| Employed: | 673 | 64.34% |
| Unemployed: | 32 | 3.06% |
| Not In Labor Force: | 341 | 32.60% |
| Total: | 1,046 | 100% |
| Management, business, science, and arts: | 422 | 62.70% |
| Service: | 80 | 11.89% |
| Sales and Office: | 98 | 14.56% |
| Natural resources, construction, and maintenance: | 27 | 4.01% |
| Production, transportation, and material moving: | 46 | 6.84% |
| Total Civilian Employed Population: | 673 | 100% |
In 2024, the median home value is $853,100, which is considerably higher than the national median ($332,700), is up $200,200 (30.66%) since 2011 and above its 2019 pre-pandemic level by $189,000. The median gross rent is $0, which is well under the national median ($1,413), is down $2,001 (100.00%) since 2011 and above its 2019 pre-pandemic level by $0. Of occupied housing, owners make up 96.19% (48.46% with a mortgage, 51.54% free-and-clear) and renters 3.81% - making this ZIP Code under national rental averages. The vacancy rate is 9.23%, which is markedly below 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 | $652,900 | $672,600 | $653,300 | $622,600 | $657,000 | $645,100 | $604,700 | $636,700 | $664,100 | $645,100 | $656,900 | $824,100 | $840,400 | $853,100 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 0 | 0.00% |
| $1,000 to $1,499: | 0 | 0.00% |
| $1,500 to $1,999: | 13 | 72.22% |
| $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: | 5 | 27.78% |
| Total: | 18 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $2,001 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 220 | 46.61% |
| Owner Occupied (free and clear, no mortgage): | 234 | 49.58% |
| Renter Occupied: | 18 | 3.81% |
| Total Occupied Housing Units: | 472 | 100% |
| Occupied Housing Units: | 472 | 90.77% |
| Vacant Housing Units (not graphed): | 48 | 9.23% |
| Total Housing Units: | 520 | 100% |
| Single-Family Units: | 520 | 100.00% |
| Multi-Family Units: | 0 | 0.00% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 520 | 100% |
In 2024, 61.90% 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 95.10%, which is comparable to the national rate (89.60%). The uninsured rate is 1.00%, which is far lower than the national rate (8.40%). Private coverage is 90.00%, which is well above the national rate (67.10%). 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 elementary (41.13%). College enrollment is 34.20%, 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: | 5 | 0.53% |
| 9th to 12th grade, no diploma: | 41 | 4.36% |
| High school graduate (includes equivalency): | 145 | 15.43% |
| Some college, no degree: | 80 | 8.51% |
| Associate's degree: | 87 | 9.26% |
| Bachelor's degree: | 254 | 27.02% |
| Graduate or professional degree: | 328 | 34.89% |
| Total: | 940 | 100% |
| High school or higher: | 894 | 95.11% |
| Bachelor's degree or higher: | 582 | 61.91% |
| Private Insurance: | 1,103 | 72.71% |
| Public Insurance: | 402 | 26.50% |
| No Insurance: | 12 | 0.79% |
| Total: | 1,517 | 100% |
| Has Health Insurance: | 1,505 | 99.21% |
| 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% | 3.8% | 4.8% | 5.1% | 7.2% | 9.0% | 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: | 14 | 6.06% |
| Kindergarten: | 27 | 11.69% |
| Elementary school (grades 1-8): | 95 | 41.13% |
| High school (grades 9-12): | 16 | 6.93% |
| College or graduate school: | 79 | 34.20% |
| Total: | 231 | 100% |
| Early Childhood: | 41 | 17.75% |
| K-12 (Primary & Secondary School): | 138 | 59.74% |
ZIP Code 11739 supports both business and residential activity. According to the Business Census (2024), there are 41 business establishments, employing about 1,418 people with an annual payroll of $95,036,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 1,252Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 41Source: CBP |
| 1st Quarter Payroll: | $24,616,000Source: CBP |
| Annual Payroll: | $95,036,000Source: CBP |
| # of Employees: | 1,418Source: CBP |
ZIP Code 11739 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 2nd Congressional District. This Metro area has a population of 18,897,109 people, about 0.01% of whom live in ZIP Code 11739, and is subdivided into the Nassau County-Suffolk County, NY division. It covers 3.553 sq mi of land and a water area of 1.57 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: | 3.553 sq miSource: Census |
| Water Area: | 1.57 sq miSource: Census |
| Congressional District: | 02Source: USPS |
| Congressional Land Area: | 182.01 sq miSource: Census |
| PMSA: | Nassau-Suffolk, NY PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 3630235Source: Census |
| Place Name: | Great River CDP; New YorkSource: Census |
We could not locate which school district 11739 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.