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11717
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  2. ZIP Codes
  3. ZIP Code 11717
New York (NY)Suffolk CountyNew York-Newark-Jersey City631934

ZIP Code 11717 — Brentwood, NY

Suffolk County * New York-Newark-Jersey City metro

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What stands out

  • Snapshot data is limited for this ZIP.

Categories vs U.S.

Economy

Economy metrics are not available for this ZIP. This is common for USPS ZIP codes that don't map cleanly to a Census ZIP Code Tabulation Area (ZCTA), which is what ACS estimates are published for.

Health

3 of 6 available metrics better than U.S.

CDC PLACES modeled ZCTA-level estimates (adult prevalence).

Obesity

34.4%

U.S.

33.3%

Diabetes

11.6%

U.S.

12.0%

Current smoking

10.7%

U.S.

13.1%

Connectivity

3 of 3 metrics better than U.S.

100+ Mbps coverage

99.3%

U.S.

89.6%

Gigabit ready

89.2%

U.S.

46.1%

5G available

98.4%

U.S.

77.4%

Learning

Education metrics come from ACS 5-year estimates for ZIP Code Tabulation Areas (ZCTAs).

Learning metrics are not available for this ZIP.

ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as noise.

School districts

Brentwood Union Free School District

Map

ZIP 11717

Brentwood, NY

Population

—

Area

10.7 sq mi

Density

—

Neighbors

11706117221172511729117461175111788

National Percentile Rankings

How this ZIP compares to other ZIP codes nationwide.

More Details

Census Tracts

12 tracts overlap this ZIP. Hover over segments to explore.

19%
13%
11%
8%
8%
+7

Tract 2012

19%

Tract 1456.03

13.3%

Tract 1457.02

10.5%

Tract 1461.05

8.2%

Tract 1461.06

8.1%

Others (7)

40.5%

Total tracts: 12Coverage: 99.6%

Representation

U.S. House

ZIP codes can span multiple congressional districts. Overlap percentages are approximate by land area. Verify by address.

100%

NY-2

99.8%

NY-1

0.2%

Districts: 2Coverage: 100.0%

Data freshness

ACS 5-Year
2020–2024
CDC PLACES
2025
Broadband
2024-06-arcgis
Mobile
2025-11-24
Page Updated
2026-03-31

Release schedule and upstream dates: Sources.

Data sources

US Census Bureau (ACS 5-year)HUD USPS ZIP crosswalkUS Census TIGER/Line (geometry inputs)US Census TIGER/Line (school districts)US Census Bureau (ZCTA-to-tract relationship, 2020)US Census Bureau (2020 ZCTA-to-congressional-district relationship file, CD119)CDC PLACES (ZCTA)FCC (Form 477 broadband)FCC (Mobile Broadband Data Collection)

Derived statistics

  • ZIP pages use Census ZIP Code Tabulation Areas (ZCTAs), not USPS delivery routes.
  • Population density is computed as population ÷ land area.
  • Overlap percentages (tracts and districts) are derived from map geometry and are approximate.

Data accuracy & methodology

ZIP pages combine 2020–2024 ACS 5-year ZCTA estimates with other public datasets when available (see Sources). Connectivity metrics use FCC coverage data, not ACS. ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as statistical noise rather than precise changes.

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