Plain

Residential delivery area · New York

ZIP Code 11798: Wyandanch, NY

ZIP code 11798 uses the postal name Wyandanch, New York and lies entirely in Suffolk County (Census 2020 ZIP-county file). By Census place, its land lies in Wyandanch (41%), East Farmingdale (34%) and Wheatley Heights (25%). 231 business establishments had a location in this ZIP code in 2023, 42 more than in 2018; the most are in construction (ZIP Code Business Patterns).

  • ACS2020-24
  • Census2020
  • FHFA2025
  • ZBP2023
  • IRS2022
1national area: New York, Delaware and Pennsylvania
117sectional center: Mid-Island, NY (SCF 117)
98delivery area within it
Town
Wyandanch · its only residential ZIP
Census places
Wyandanch (41%) census-designated place; East Farmingdale (34%) census-designated place; Wheatley Heights (25%) census-designated place
Metro area
New York-Newark-Jersey City, NY-NJ
House district
NY-2 119th Congress
Time zone
Eastern
Land area
5.0 sq mi

Where is ZIP code 11798?

11798 centers on 40.753°, -73.378° and covers 5.0 square miles of land plus 0.0 of water. It borders 5 ZIP codes: 11747, 11704, 11729, 11735, 11746.

11704 · West Babylon11729 · Deer Park11735 · Farmingdale11746 · Huntington Station11747 · Melville11798 · Wyandanch (this ZIP)117981170411747117351172911704 · West Babylon11729 · Deer Park11735 · Farmingdale11746 · Huntington Station11747 · Melville11798 · Wyandanch (this ZIP)117981170411747117351172911704 · West Babylon11729 · Deer Park11735 · Farmingdale11746 · Huntington Station11747 · Melville11798 · Wyandanch (this ZIP)1179811704117471173511729
Shaded by median household income, in national fifths (ACS 2020-2024); 11798 outlined. Census 2020 ZCTA boundaries. <$54.1k$98.1k+no figure

The map draws ZIP code areas only. For the streets inside 11798, open its center on OpenStreetMap.

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).

What are homes worth in 11798?

FHFA's house price index for 11798, built from repeat sales and appraisals of the same homes, rose 159% from 2015 to 2025 and rose 79% from 2020 to 2025, and moved +10.1% in 2025.

Median home value (owners' estimate)
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Median gross rent
–
Homes owned by their occupants
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Housing units
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0 200 400 600 800 198519902000201020202025 0 200 400 600 800 198519902000201020202025 0 200 400 600 800 198519902000201020202025
Index = 100 in 1985, the first year FHFA reports for 11798; 2025: 878.0. Annual, not seasonally adjusted; FHFA calls its ZIP-level indexes developmental.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.

What businesses are in 11798?

  • Construction46
  • Other services (except public administration)31
  • Retail trade30
  • Health care and social assistance24
  • Administrative and support and waste management and remediation services23
  • Accommodation and food services17

Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).

Which ZIP codes are next to 11798?

The ZIP codes around 11798 where people live (100 or more residents), bordering first, then the nearest by center
ZIPTownPeopleHousehold incomeDistance
11747Melville20,513$160k2.7 mi
11704West Babylon40,706$129k2.7 mi
11729Deer Park27,231$137k2.8 mi
11735Farmingdale32,028$139k3.2 mi
11746Huntington Station65,747$165k4.3 mi
11703North Babylon17,187$137k3.1 mi (near)
11804Old Bethpage4,835$191k4.1 mi (near)
11757Lindenhurst44,413$128k4.4 mi (near)

Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.