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Area Code 631 Information


Area Code 631
Population 67360
Type of Code: General Purpose Code
Geographic(G) or non-geographic(N): G
Is this code assigned: Yes
Is this code in use: Y
In service date: 1999-01-11
Planning Letter(s): 476R1 300 184
Location: NY
Country: US
Time Zone: E
Parent NPA: 516

Area code 631 was officially put into service on November 1, 1999. Created from a split of area code 516, it now covers almost all Suffolk County. Initially, the 631 area code was to be overlaid with area code 934 in 2016, but it split into two different operational areas later. This move was an answer to the extent of demand for new phone numbers in the region, which had led to a risk of number exhaustion.

Region's Demographics:

As of 2021, Suffolk County, the primary region under the 631 area code, has a population of approximately 1.5 million. The county has an incredible cultural diversity, with a vibrant mix of ethnicities and languages. Moreover, the region is a university hub, with Stony Brook University and Suffolk County Community College among the notable academic institutions in the area. This significantly impacts the age demographics of the site, attracting a younger crowd.

ZIP Codes within Area Code 631:

Hundreds of ZIP codes are situated within the 631 area, given the large expanse of the territory it covers. Here is a sampling of ZIP codes that fall within the jurisdiction of the 631 area code:

- 11701: Amityville
- 11702: Babylon
- 11703: North Babylon
- 11705: Bayport
- 11706: Bay Shore
- 11713: Bellport
- 11715: Blue Point
- 11716: Bohemia
- 11717: Brentwood
- 11718: Brightwaters
- 11719: Brookhaven
- 11720: Centereach

This is a partial list; many more ZIP codes are tied to the 631 area code.

Cities within the 631 code:

Covering a sprawling area, the 631 area code hosts several cities. Some of these include Amityville, Brentwood, Central Islip, Commack, Copiague, Deer Park, East Northport, Farmingville, Hauppauge, Huntington Station, Lindenhurst, Newfield, North Amityville, Ronkonkoma, Selden, and West Babylon.

The United States area code 631 is instrumental in maintaining efficient telecommunication standards in Suffolk County, New York. It not only facilitates communication but also serves as a significant locational identifier. 

Area Code Zipcodes


Zipcode City State
501 HOLTSVILLE New York
501 INTERNAL REVENUE SERVICE New York
544 HOLTSVILLE New York
544 INTERNAL REVENUE SERVICE New York
6390 FISHERS ISLAND New York
6390 FISHERS ISLE New York
11705 BAY PORT New York
11705 BAYPORT New York
11706 BAY SHORE New York
11706 BAYSHORE New York
11706 FAIR HARBOR New York
11706 KISMET New York
11706 N BAY SHORE New York
11706 NORTH BAY SHORE New York
11706 POINT O WOODS New York
11706 SALTAIRE New York
11706 W BAY SHORE New York
11706 WEST BAY SHORE New York
11713 BELLPORT New York
11713 N BELLPORT New York
11713 NORTH BELLPORT New York
11715 BLUE POINT New York
11716 BOHEMIA New York
11718 BRIGHTWATERS New York
11719 BROOKHAVEN New York
11719 S HAVEN New York
11720 CENTEREACH New York
11720 S SETAUKET New York
11720 SOUTH SETAUKET New York
11721 CENTER PORT New York
11721 CENTERPORT New York
11725 COMMACK New York
11727 CORAM New York
11729 DEER PARK New York
11729 DEERPARK New York
11730 E ISLIP New York
11730 EAST ISLIP New York
11731 E NORTHPORT New York
11731 EAST NORTHPORT New York
11731 ELWOOD New York
11733 E SETAUKET New York
11733 EAST SETAUKET New York
11733 OLD FIELD New York
11733 POQUOTT New York
11733 SETAUKET New York
11733 STRONGS NECK New York
11738 FARMINGVILLE New York
11739 GREAT RIVER New York
11740 GREENLAWN New York
11746 DIX HILLS New York
11746 HUNTINGTN STA New York
11746 HUNTINGTON STATION New York
11746 S HUNTINGTON New York
11746 SO HUNTINGTON New York
11746 SOUTH HUNTINGTON New York
11747 DIX HILLS New York
11747 HUNTINGTN STA New York
11747 HUNTINGTON STATION New York
11747 MELVILLE New York
11751 BAYBERRY POINT New York
11751 ISLIP New York
11751 ISLIP MANOR New York
11754 KINGS PARK New York
11754 SAN REMO New York
11755 LAKE GROVE New York
11755 LK GROVE New York
11757 HEER PARK New York
11757 LINDENHURST New York
11757 N LINDENHURST New York
11757 NORTH LINDENHURST New York
11763 GORDON HEIGHTS New York
11763 MEDFORD New York
11767 NESCONSET New York
11768 ASHAROKEN New York
11768 CRAB MEADOW New York
11768 EATONS NECK New York
11768 FORT SALONGA New York
11768 NORTHPORT New York
11768 SUNKEN MEADOW New York
11769 OAKDALE New York
11770 CORNEIL ESTATES New York
11770 FIRE ISLAND New York
11770 OCEAN BAY PARK New York
11770 OCEAN BEACH New York
11770 SEAVIEW New York
11772 BLUE POINT New York
11772 CANAAN LAKE New York
11772 DAVIS PARK New York
11772 E PATCHOGUE New York
11772 EAST PATCHOGUE New York
11772 N PATCHOGUE New York
11772 NORTH PATCHOGUE New York
11772 PATCHOGUE New York
11780 BOX HILL New York
11780 DEER WELLS New York
11780 FLOWERFIELD New York
11780 HEAD OF THE HARBOR New York
11780 NISSEQUOGUE New York
11780 SAINT JAMES New York
11780 ST JAMES New York
11782 CHERRY GROVE New York
11782 FIRE IS PINES New York
11782 FIRE ISLAND PINES New York
11782 SAYVILLE New York
11784 OLD WESTFIELD New York
11784 SELDEN New York
11786 SHOREHAM New York
11787 SMITHTOWN New York
11787 VILLAGE OF THE BRANCH New York
11788 HAUPPAUGE New York
11788 SMITHTOWN New York
11790 HEAD OF THE HARBOR New York
11790 STONY BROOK New York
11790 STONYBROOK New York
11792 WADING RIVER New York
11792 WILDWOOD New York
11792 WILLWOOD New York
11794 STONY BROOK New York
11794 STONYBROOK New York
11794 SUNY STONY BROOK New York
11795 W ISLIP New York
11795 WEST ISLIP New York
11796 W SAYVILLE New York
11796 WEST SAYVILLE New York
11798 WHEATLEY HEIGHTS New York
11798 WHEATLEY HTS New York
11798 WYANDANCH New York
11901 FLANDERS New York
11901 NORTHAMPTON New York
11901 RIVERHEAD New York
11930 AMAGANSETT New York
11930 BEACH HAMPTON New York
11930 PROMISED LAND New York
11931 AQUEBOGUE New York
11932 BRIDGE HAMPTON New York
11932 BRIDGEHAMPTON New York
11933 BAITING HOLLOW New York
11933 BAITING HOLW New York
11933 CALVERTON New York
11934 CENTER MORICHES New York
11934 CTR MORICHES New York
11935 CUTCHOGUE New York
11935 NASSAU POINT New York
11937 E HAMPTON New York
11937 EAST HAMPTON New York
11939 E MARION New York
11939 EAST MARION New York
11940 E MORICHES New York
11940 EAST MORICHES New York
11941 EASTPORT New York
11942 E QUOGUE New York
11942 EAST QUOGUE New York
11944 GREENPORT New York
11946 HAMPTON BAYS New York
11947 JAMESPORT New York
11948 LAUREL New York
11949 MANORVILLE New York
11950 MANOR PARK New York
11950 MASTIC New York
11950 RIVERS EDGE New York
11951 MASTIC BEACH New York
11951 OLD MASTIC New York
11951 VILLAGE OF MASTIC BEACH New York
11952 MATTITUCK New York
11953 MIDDLE ISLAND New York
11954 HITHER PLAINS New York
11954 MONTAUK New York
11955 MORICHES New York
11956 NEW SUFFOLK New York
11957 ORIENT New York
11957 ORIENT POINT New York
11958 PECONIC New York
11959 QUOGUE New York
11960 REMSENBURG New York
11961 LAKE PANAMOKA New York
11961 PANAMOKA New York
11961 RIDGE New York
11962 SAGAPONACK New York
11963 BAY POINT New York
11963 N HAVEN New York
11963 NORTH HAVEN New York
11963 PINE NECK New York
11963 SAG HARBOR New York
11964 SHELTER IS New York
11964 SHELTER ISLAND New York
11965 SHELTER IS HT New York
11965 SHELTER ISLAND HEIGHTS New York
11967 E YAPHANK New York
11967 EAST YAPHANK New York
11967 SHIRLEY New York
11967 SMITH POINT New York
11967 SMITHS POINT New York
11968 S HAMPTON New York
11968 SOUTH HAMPTON New York
11968 SOUTHAMPTON New York
11969 S HAMPTON New York
11969 SOUTH HAMPTON New York
11969 SOUTHAMPTON New York
11970 S JAMESPORT New York
11970 SOUTH JAMESPORT New York
11971 SOUTHOLD New York
11972 SPEONK New York
11973 UPTON New York
11975 WAINSCOTT New York
11976 WATER MILL New York
11976 WATERMILL New York
11976 WTR MILL New York
11977 W HAMPTON New York
11977 WEST HAMPTON New York
11977 WESTHAMPTON New York
11978 QUIOQUE New York
11978 W HAMPTON BCH New York
11978 W HAMPTON BEACH New York
11978 WEST HAMPTON BEACH New York
11978 WEST HAMPTON DUNES New York
11978 WESTHAMPTON BEACH New York
11978 WESTHAMPTON DUNES New York
11980 CARVER PARK New York
11980 YAPHANK New York

FAQ

Where is area code 631?

The Area code 631 is located in New York and includes the following cities:
  • North Bay Shore
  • Brentwood
  • Centereach
  • Central Islip
  • Commack
  • Copiague
  • Coram
  • Deer Park
  • Dix Hills
  • East Northport
  • East Patchogue
  • Hauppauge
  • Holbrook
  • Huntington Station
  • West Islip
  • North Lindenhurst
  • Medford
  • Ronkonkoma
  • Selden
  • Shirley
  • Smithtown
  • West Babylon
  • West Islip