Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/NY/NEW-CASSEL

New Cassel ZIP codes, New York

No ZIP code is named for New Cassel, NY; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 11590 and 11801. Its area codes are 516 and 363.

USPS city name
0 ZIP codes
Overlapping the city
2 more
Population
14,551
Area codes
516, 363

New Cassel in numbers

About 14,551 people live in New Cassel, in 3,437 households. The median household income is $155,443 a year, 81% above the New York median of $85,974 (US: $80,734). The median owner-occupied home is valued at $509,100 (20% above the New York median), and median gross rent is $2,134 a month. The median age is 33.7; 21.5% of adults 25 and over hold a bachelor's degree or higher (40.2% across New York); the average commute takes 24 minutes.

Population14,551New Cassel14,551
Households3,437New Cassel3,437
Median age33.7New Cassel33.7New York39.8US 38.9
Median household income$155,443New Cassel$155,443New York$85,974US $80,734
Median home value$509,100New Cassel$509,100New York$423,800US $332,700
Median gross rent$2,134New Cassel$2,134New York$1,621US $1,413
Bachelor's degree or higher21.5%New Cassel21.5%New York40.2%US 35.7%
Mean commute23.8 minNew Cassel23.8 minNew York32.6 minUS 26.4 min
Population density9,746 / sq miNew Cassel9,746 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place New Cassel CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering New Cassel

These ZIP codes cover part of New Cassel but are addressed as somewhere else.

ZIP codes overlapping New Cassel
ZIP City Type Population Median income Median home
11590 Westbury , NY Standard 47,599 $152,960 $633,800
11801 Hicksville , NY Standard 41,585 $145,788 $625,100

Map of New Cassel ZIP codes

The ZIP codes of New Cassel, NY, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near New Cassel

The nearest larger towns are Westbury (15,808 people, 1.3 mi), Hicksville (43,780 people, 2.1 mi) and East Meadow (36,821 people, 2.8 mi).

Towns near New Cassel
TownPopulationDistance
Salisbury 12,412 1.0 mi
Westbury 15,808 1.3 mi
Hicksville 43,780 2.1 mi
Jericho 13,759 2.2 mi
Old Westbury 4,241 2.5 mi
Carle Place 5,188 2.6 mi
East Meadow 36,821 2.8 mi
Brookville 2,941 3.3 mi
Uniondale 33,148 3.3 mi
East Williston 2,611 3.6 mi
Levittown 51,904 3.7 mi
Mineola 21,211 4.0 mi
Roslyn Heights 6,975 4.1 mi
East Hills 7,257 4.2 mi

More nearby: every ZIP code in Nassau County · New York ZIP codes

Cite this page

zipcodes.pro. “New Cassel, NY ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ny/new-cassel

Underlying data is public domain or openly licensed — sources, vintages and licences.