ZIP code 11901
Where is ZIP code 11901?
Riverhead, New York
Suffolk County · Standard ZIP code
ZIP code 11901 belongs to Riverhead, New York in Suffolk County. 11901 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 33,091 people live in the 11901 area, where the median household income is $85,061. The closest ZIP codes are 11931 (Aquebogue, 1.8 mi northeast), 11970 (South Jamesport, 4 mi east) and 11947 (Jamesport, 4 mi northeast).
| ZIP code | 11901 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Riverhead |
| Also accepted | Flanders |
| State | New York (NY) |
| County | Suffolk County |
| Time zone | Eastern Time · now |
| Area codes | 631, 934 |
| Coordinates | 40.9262, -72.652 map |
| 3-digit prefix | 119 |
Population and income in 11901
| Population | 33,091 · higher than 89% of New York ZIP codes |
|---|---|
| People per square mile | 584 · higher than 64% of New York ZIP codes |
| Median age | 46.5 years · higher than 65% of New York ZIP codes |
| Men / women | 53% / 47% |
| Median household income | $85,061 · higher than 54% of New York ZIP codes |
| Income per person | $39,728 |
| Below the poverty line | 14% |
| Bachelor’s degree or higher | 23% of adults 25+ |
| Median home value | $453,800 · higher than 72% of New York ZIP codes |
| Median rent | $2,196 a month |
| Housing units | 13,578 |
| Households | 12,085 (2.59 people on average) |
| Owners / renters | 70% / 30% |
| Land area | 56.7 sq mi (plus 4.78 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 11901. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 11901
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 11931 | Aquebogue, NY | 1.8 mi NE | PO Box only |
| 11970 | South Jamesport, NY | 4 mi E | PO Box only |
| 11947 | Jamesport, NY | 4 mi NE | PO Box only |
| 11933 | Calverton, NY | 4.7 mi W | Standard |
| 11948 | Laurel, NY | 5.9 mi NE | Standard |
| 11978 | Westhampton Beach, NY | 6.7 mi S | Standard |
| 11942 | East Quogue, NY | 6.8 mi SE | Standard |
| 11977 | Westhampton, NY | 7.5 mi S | Standard |
| 11959 | Quogue, NY | 7.6 mi S | PO Box only |
| 11952 | Mattituck, NY | 7.7 mi NE | Standard |
| 11941 | Eastport, NY | 7.8 mi SW | Standard |
| 11946 | Hampton Bays, NY | 7.8 mi SE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 11901 or measure the distance to another ZIP code.
How to address mail to 11901
123 MAIN ST
RIVERHEAD NY 11901
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts FLANDERS as the city name for 11901. Avoid Northampton: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (11901-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 11901?
- 11901 is a Riverhead, New York ZIP code. Flanders is also accepted as the city name.
- What county is 11901 in?
- ZIP code 11901 is in Suffolk County, New York.
- What time zone is ZIP code 11901 in?
- 11901 is in the Eastern Time zone (America/New_York).
- What area code is 11901?
- Phone numbers in ZIP code 11901 use area codes 631 and 934.
- What is the population of ZIP code 11901?
- About 33,091 people live in ZIP code 11901, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 11901?
- The median household income in 11901 is $85,061 a year, higher than 54% of New York ZIP codes.
- What ZIP codes are near 11901?
- The nearest ZIP codes to 11901 are 11931 (Aquebogue, 1.8 miles), 11970 (South Jamesport, 4 miles), 11947 (Jamesport, 4 miles) and 11933 (Calverton, 4.7 miles).