County Route 4 (Nassau County, New York)

County Route 4
CR 4, highlighted in red
Route information
Maintained by NCDPW
Length9.94 mi (16.00 km)
Existed1959–present
Major junctions
South endMerrick Road (CR 27) in Merrick
North endWheatley Road (CR E60) in Old Westbury
Location
CountryUnited States
StateNew York
CountyNassau
Highway system

County Route 4 is a major, 9.94-mile (16.00 km) county road connecting Merrick and Old Westbury, in Nassau County, on Long Island, New York. The unsigned, north-south county route consists of Merrick Avenue, Post Avenue, and Post Road.

CR 4, in its entirety, is owned by Nassau County and is maintained by the Nassau County Department of Public Works.