ZIP code 11766
Where is ZIP code 11766?
Mount Sinai, New York
Suffolk County · Standard ZIP code
ZIP code 11766 belongs to Mount Sinai, New York in Suffolk County. 11766 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 631 and 934. About 10,750 people live in the 11766 area, where the median household income is $153,235. The closest ZIP codes are 11764 (Miller Place, 1.6 mi northeast), 11776 (Port Jefferson Station, 2 mi southwest) and 11777 (Port Jefferson, 2.8 mi northwest).
| ZIP code | 11766 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Mount Sinai |
| State | New York (NY) |
| County | Suffolk County |
| Time zone | Eastern Time · now |
| Area codes | 631, 934 |
| Coordinates | 40.9271, -73.0127 map |
| 3-digit prefix | 117 |
Population and income in 11766
| Population | 10,750 · higher than 72% of New York ZIP codes |
|---|---|
| People per square mile | 1,784 · higher than 74% of New York ZIP codes |
| Median age | 49 years · higher than 74% of New York ZIP codes |
| Men / women | 50% / 51% |
| Median household income | $153,235 · higher than 92% of New York ZIP codes |
| Income per person | $65,939 |
| Below the poverty line | 2.1% |
| Bachelor’s degree or higher | 50% of adults 25+ |
| Median home value | $649,600 · higher than 83% of New York ZIP codes |
| Median rent | $3,088 a month |
| Housing units | 4,130 |
| Households | 3,934 (2.71 people on average) |
| Owners / renters | 93% / 7.5% |
| Land area | 6.03 sq mi (plus 1.44 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 11766. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 11766
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 11764 | Miller Place, NY | 1.6 mi NE | Standard |
| 11776 | Port Jefferson Station, NY | 2 mi SW | Standard |
| 11777 | Port Jefferson, NY | 2.8 mi NW | Standard |
| 11789 | Sound Beach, NY | 2.9 mi NE | Standard |
| 11727 | Coram, NY | 2.9 mi S | Standard |
| 11784 | Selden, NY | 4.3 mi SW | Standard |
| 11778 | Rocky Point, NY | 4.3 mi E | Standard |
| 11953 | Middle Island, NY | 4.6 mi SE | Standard |
| 11733 | East Setauket, NY | 5.3 mi W | Standard |
| 11720 | Centereach, NY | 5.3 mi SW | Standard |
| 11790 | Stony Brook, NY | 6.2 mi W | Standard |
| 11738 | Farmingville, NY | 6.4 mi S | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 11766 or measure the distance to another ZIP code.
How to address mail to 11766
123 MAIN ST
MOUNT SINAI NY 11766
Put the city, the two-letter state code and the ZIP code on the last line. Avoid Mt Sinai: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (11766-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 11766?
- 11766 is a Mount Sinai, New York ZIP code.
- What county is 11766 in?
- ZIP code 11766 is in Suffolk County, New York.
- What time zone is ZIP code 11766 in?
- 11766 is in the Eastern Time zone (America/New_York).
- What area code is 11766?
- Phone numbers in ZIP code 11766 use area codes 631 and 934.
- What is the population of ZIP code 11766?
- About 10,750 people live in ZIP code 11766, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 11766?
- The median household income in 11766 is $153,235 a year, higher than 92% of New York ZIP codes.
- What ZIP codes are near 11766?
- The nearest ZIP codes to 11766 are 11764 (Miller Place, 1.6 miles), 11776 (Port Jefferson Station, 2 miles), 11777 (Port Jefferson, 2.8 miles) and 11789 (Sound Beach, 2.9 miles).