ZIP code 11788
Where is ZIP code 11788?
Hauppauge, New York
Suffolk County · Standard ZIP code
ZIP code 11788 belongs to Hauppauge, New York in Suffolk County. 11788 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 17,374 people live in the 11788 area, where the median household income is $149,726. The closest ZIP codes are 11749 (Islandia, 1.7 mi southeast), 11787 (Smithtown, 2.3 mi northwest) and 11722 (Central Islip, 2.5 mi south).
| ZIP code | 11788 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Hauppauge |
| Also accepted | Smithtown |
| State | New York (NY) |
| County | Suffolk County |
| Time zone | Eastern Time · now |
| Area codes | 631, 934 |
| Coordinates | 40.8231, -73.1958 map |
| 3-digit prefix | 117 |
Population and income in 11788
| Population | 17,374 · higher than 79% of New York ZIP codes |
|---|---|
| People per square mile | 2,019 · higher than 75% of New York ZIP codes |
| Median age | 42.7 years · lower than 55% of New York ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $149,726 · higher than 91% of New York ZIP codes |
| Income per person | $61,757 |
| Below the poverty line | 5.1% |
| Bachelor’s degree or higher | 51% of adults 25+ |
| Median home value | $653,900 · higher than 83% of New York ZIP codes |
| Median rent | $2,659 a month |
| Housing units | 5,847 |
| Households | 5,613 (3.07 people on average) |
| Owners / renters | 83% / 17% |
| Land area | 8.6 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 11788. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 11788
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 11749 | Islandia, NY | 1.7 mi SE | Standard |
| 11787 | Smithtown, NY | 2.3 mi NW | Standard |
| 11722 | Central Islip, NY | 2.5 mi S | Standard |
| 11767 | Nesconset, NY | 3 mi NE | Standard |
| 11779 | Ronkonkoma, NY | 3.6 mi E | Standard |
| 11717 | Brentwood, NY | 4.1 mi SW | Standard |
| 11780 | Saint James, NY | 4.5 mi NE | Standard |
| 11725 | Commack, NY | 4.6 mi W | Standard |
| 11755 | Lake Grove, NY | 4.7 mi NE | Standard |
| 11752 | Islip Terrace, NY | 4.8 mi S | Standard |
| 11754 | Kings Park, NY | 5 mi NW | Standard |
| 11716 | Bohemia, NY | 5.6 mi SE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 11788 or measure the distance to another ZIP code.
How to address mail to 11788
123 MAIN ST
HAUPPAUGE NY 11788
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts SMITHTOWN as the city name for 11788. Adding the 4-digit ZIP+4 code (11788-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 11788?
- 11788 is a Hauppauge, New York ZIP code. Smithtown is also accepted as the city name.
- What county is 11788 in?
- ZIP code 11788 is in Suffolk County, New York.
- What time zone is ZIP code 11788 in?
- 11788 is in the Eastern Time zone (America/New_York).
- What area code is 11788?
- Phone numbers in ZIP code 11788 use area codes 631 and 934.
- What is the population of ZIP code 11788?
- About 17,374 people live in ZIP code 11788, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 11788?
- The median household income in 11788 is $149,726 a year, higher than 91% of New York ZIP codes.
- What ZIP codes are near 11788?
- The nearest ZIP codes to 11788 are 11749 (Islandia, 1.7 miles), 11787 (Smithtown, 2.3 miles), 11722 (Central Islip, 2.5 miles) and 11767 (Nesconset, 3 miles).