Zip Code 11717
Brentwood, New York — Suffolk County
📍 ZIP code 11717 is in Brentwood, Suffolk County, New York.
ZIP code 11717 is located in Brentwood, Suffolk County, New York. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 64,969. The area code for ZIP code 11717 is 631.
Quick Answer
Zip code 11717 is in Brentwood, New York (Suffolk County). It has a population of 64,969, median household income of $111,425, and median home value of $416,200.
Population
64,969
Income
$111,425
Home Value
$416,200
Climate
83°F / 25°F
About Zip Code 11717
Zip code 11717 is located in Brentwood, New York, within Suffolk County. Home to approximately 64,969 residents, this area sits at an elevation of 92 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 631.
The median household income is $111,425 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $416,200, and the cost of living index is 149 (49% above the national average of 100).
Summers average a high of 83°F while winters drop to 25°F. The area receives about 46 in of rain and 32 in of snow annually. The zip code covers 10.9 square miles of land area.
Key Statistics
64,969
$111,425
$416,200
Eastern (EST/EDT)
631
92 ft
10.9 sq mi
36.1
15,393
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Compare With Nearby Zip Codes
| Metric | 11717 | 11722 | 11788 | 11729 | 11725 | 11751 |
|---|---|---|---|---|---|---|
| City | Brentwood, NY | Central Islip, NY | Hauppauge, NY | Deer Park, NY | Commack, NY | Islip, NY |
| Population | 64,969 | 38,443 | 17,092 | 26,647 | 29,050 | 13,152 |
| Median Income | $111,425 | $110,365 | $148,946 | $138,350 | $168,324 | $116,328 |
| Home Value | $416,200 | $407,100 | $635,700 | $496,100 | $643,000 | $501,900 |
| Cost of Living | 149 | 132 | 207 | 168 | 224 | 161 |
| Median Age | 36.1 | 34.1 | 42.6 | 42.2 | 42.6 | 46.6 |
Cost of Living
100 = National Average. Brentwood's cost of living is 49% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.7x
Demographics
Zip code 11717 has a population of 64,969 people with a median age of 36.1. There are 15,393 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Brentwood (11717) population trend from 2010 to 2024
↑ 14.7%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
83°F
25°F
46 in
32 in
Brentwood experiences warm summers with average highs around 83°F. Winters are cool with lows averaging 25°F. With 32 in of annual snowfall, residents should be prepared for significant winter weather.
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Housing & Economy
Median Home Value
$416,200
Median Household Income
$111,425
With 15,393 housing units across 10.9 square miles, 11717 has a housing density of 1,412 units per square mile. The home price-to-income ratio is 3.7x.
Location & Geography
Latitude
40.7838°
Longitude
-73.2523°
Land Area
10.9 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 11717 (Brentwood, NY) with distances:
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ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 11717's $111,425. A way to compare Brentwood to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 11717 (Brentwood, NY). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Brentwood, New York?
Brentwood, New York uses zip code 11717.
What county is zip code 11717 in?
Zip code 11717 is located in Suffolk County, New York.
What is the population of zip code 11717?
The population of zip code 11717 is 64,969 with a median age of 36.1.
Is 11717 in Brentwood, New York?
Yes, zip code 11717 is in Brentwood, Suffolk County, New York. The area code is 631.
Frequently Asked Questions
What city is zip code 11717 in?
Zip code 11717 is in Brentwood, New York. It is part of Suffolk County and uses the Eastern (EST/EDT) timezone.
What is zip code 11717?
Zip code 11717 is a U.S. postal code in Brentwood, New York (Suffolk County). It has a population of 64,969 and covers 10.9 square miles.
What is the population of zip code 11717?
The population of zip code 11717 (Brentwood, NY) is 64,969 with a median age of 36.1. There are approximately 15,393 housing units in this area.
What is the median income in zip code 11717?
The median household income in zip code 11717 (Brentwood, NY) is $111,425 per year. The cost of living index is 149 (100 = national average).
What is the average home price in zip code 11717?
The median home value in zip code 11717 (Brentwood, NY) is $416,200. The cost of living index is 149 compared to the national average of 100.
What county is zip code 11717 in?
Zip code 11717 is located in Suffolk County, New York. The primary city is Brentwood.
What is the area code for zip code 11717?
Zip code 11717 in Brentwood, NY uses area code 631. It is located in the Eastern (EST/EDT) timezone.
Is zip code 11717 a good place to live?
Zip code 11717 (Brentwood, NY) has a cost of living index of 149 (100 = national average), a median household income of $111,425, and median home values of $416,200. The median age is 36.1. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 11717?
The cost of living index for zip code 11717 (Brentwood, NY) is 149, where 100 represents the national average. This area is above the national average. Median home value: $416,200.
What schools serve zip code 11717?
Zip code 11717 in Brentwood, New York is served by the local school district of Suffolk County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.