Mattituck, New York

Mattituck, New York
Mattituck Inlet
Mattituck
Location on Long Island
Mattituck
Location within the state of New York
Coordinates: 40°59′41″N 72°32′14″W / 40.99472°N 72.53722°W / 40.99472; -72.53722
Country United States
State New York
CountySuffolk
TownSouthold
Area
 • Total
12.10 sq mi (31.35 km2)
 • Land8.98 sq mi (23.26 km2)
 • Water3.12 sq mi (8.09 km2)
Elevation
13 ft (4 m)
Population
 (2020)
 • Total
4,322
 • Density481/sq mi (185.8/km2)
Time zoneUTC−5 (Eastern (EST))
 • Summer (DST)UTC−4 (EDT)
ZIP Code
11952
Area codes631, 934
FIPS code36-46140
GNIS feature ID0956678

Mattituck is a hamlet and census-designated place (CDP) within the Town of Southold in Suffolk County, on the North Fork of Long Island, New York, United States. The population was 4,322 at the time of the 2020 census.