Suffolk County Route Listing

Note: This list contains the county route numbers and termini of roads maintained by Suffolk County and recognized as county routes by the state. There also other roads that were assigned county route numbers but never actually taken over by the county. These numbers can be found in the Former and Proposed Routes section of this web site.

County Line Road
Direction:
North/South
Southern Terminus:
Merrick Road (NY 27A) in Amityville
Northern Terminus:
North of Joyce Avenue in Amityville
Distance:
1.54 miles
Signed:
Yes
Dixon Avenue, Straight Path, Seamans Neck Road
Direction:
North/South
Southern Terminus:
Broadway (NY 110) in Amityville
Northern Terminus:
Deer Park Road (NY 231) in Dix Hills
Distance:
8.65 miles
Signed:
Yes
Wellwood Avenue, Pinelawn Road
Direction:
North/South
Southern Terminus:
New York Avenue in Lindenhurst
Northern Terminus:
Walt Whitman Road in Melville
Distance:
7.18 miles
Signed:
Yes
Commack Road, Town Line Road
Direction:
North/South
Southern Terminus:
Deer Park Avenue (NY 231) in North Babylon
Northern Terminus:
Huntington-Smithtown town line
Distance:
7.56 miles
Signed:
Yes
Kings Highway, Rabro Drive
Direction:
East/West
Western Terminus:
Old Willets Path (CR 108) in Hauppauge
Eastern Terminus:
Hauppauge Road (NY 111) in Hauppauge
Distance:
0.86 miles
Signed:
Yes
Wicks Road
Direction:
North/South
Southern Terminus:
Crooked Hill Road (CR 13) in Brentwood
Northern Terminus:
Vanderbilt Parkway (CR 67) in Brentwood
Distance:
1.70 miles
Signed:
Yes
Elwood Road
Direction:
North/South
Southern Terminus:
Jericho Turnpike (NY 25) in Elwood
Northern Terminus:
Fort Salonga Road (NY 25A) in Northport
Distance:
3.94 miles
Signed:
Yes
Woodbury Road, Pulaski Road, East Northport Road
Direction:
East/West
Western Terminus:
Harbor Road (NY 108) and Woodbury Road (Nassau CR 12) at the Nassau-Suffolk border in Cold Spring Harbor
Eastern Terminus:
Main Street (NY 25A) in Kings Park
Distance:
11.16 miles
Signed:
Yes
Oak Street, Hoffman Avenue, Railroad Avenue
Direction:
East/West
Western Terminus:
Old Sunrise Highway and County Line Road (CR 1) at the Nassau-Suffolk border
Eastern Terminus:
Great East Neck Road (CR 96) and Trolley Line Road in Babylon
Distance:
4.42 miles
Signed:
Yes
Fifth Avenue, Wicks Road, Crooked Hill Road
Direction:
North/South
Southern Terminus:
Montauk Highway (NY 27A) in Bay Shore
Northern Terminus:
Commack Road (CR 4) in Brentwood
Distance:
7.58 miles
Signed:
Yes
Clinton Avenue
Direction:
South ONLY
Southern Terminus:
Montauk Highway (NY 27A) in Bay Shore
Northern Terminus:
Fifth Avenue (CR 13) in Bay Shore
Distance:
0.64 miles
Signed:
Yes
Indian Head Road
Direction:
North/South
Southern Terminus:
Jericho Turnpike (NY 25) in Commack
Northern Terminus:
Main Street (NY 25A) in Kings Park
Distance:
3.21 miles
Signed:
Yes
Terry Road, Smithtown Boulevard, Lake Shore Road, Portion Road, Horseblock Road
Direction:
East/West
Western Terminus:
Middle Country Road (NY 25) in Smithtown
Eastern Terminus:
Montauk Highway (CR 80) in Brookhaven
Distance:
16.60 miles
Signed:
Yes
Carleton Avenue, Wheeler Road
Direction:
North/South
Southern Terminus:
Montauk Highway (NY 27A) in East Islip
Northern Terminus:
Joshua's Path (NY 111) in Hauppauge
Distance:
5.51 miles
Signed:
Yes
West Avenue, Lake Street, Waverly Avenue, Patchogue-Holbrook Road
Direction:
North/South
Western Terminus:
Division Street (CR 65) in Patchogue
Eastern Terminus:
Portion Road (CR 16) in Lake Ronkonkoma
Distance:
6.72 miles
Signed:
Yes
Yaphank Avenue, Main Street, Yaphank-Middle Island Road, Rocky Point Road
Direction:
North/South
Southern Terminus:
Montauk Highway (CR 80) in Brookhaven
Northern Terminus:
NY 25A in Rocky Point
Distance:
11.75 miles
Signed:
Yes
New Highway
Direction:
North/South
Southern Terminus:
Sunrise Highway (NY 27) in Copiague
Northern Terminus:
Babylon-Farmingdale Road (NY 109) in Lindenhurst
Distance:
2.22 miles
Signed:
Yes
Old Riverhead Road
Direction:
North/South
Southern Terminus:
Montauk Highway (CR 80) in Westhampton
Northern Terminus:
Quogue-Riverhead Road (CR 104) in Riverhead
Distance:
4.01 miles
Signed:
Yes
Lighthouse Road, Ponquogue Bridge
Direction:
North/South
Southern Terminus:
Dune Road in Hampton Bays
Northern Terminus:
Northern end of bridge
Distance:
0.53 miles
Signed:
No
Deer Park Avenue
Direction:
North/South
Southern Terminus:
Village Line Road in Babylon
Northern Terminus:
Babylon-Northport Expressway (NY 231) in North Babylon
Distance:
1.34 miles
Signed:
Yes
Deer Park Road, Park Avenue, Mill Dam Road
Direction:
North/South
Southern Terminus:
Deer Park Road (NY 231), Northern Parkway, and East Deer Park Road (CR 66) in Dix Hills
Northern Terminus:
West Shore Road in Huntington
Distance:
6.44 miles
Signed:
Yes
South Country Road
Direction:
East/West
Western Terminus:
Montauk Highway (CR 80) in East Patchogue
Eastern Terminus:
Montauk Highway (CR 80) in Brookhaven
Distance:
5.63 miles
Signed:
Yes
North Sea Road
Direction:
North/South
Southern Terminus:
North Road (NY 27/CR 39) in Southampton
Northern Terminus:
Noyack Road in North Sea
Distance:
2.53 miles
Signed:
Yes
North Road
Direction:
East/West
Western Terminus:
Montauk Highway (CR 80) in Shinnecock Hills
Eastern Terminus:
Flying Point Road (NY 27/CR 39A) in Southampton
Distance:
6.93 miles
Signed:
Yes
Flying Point Road
Direction:
East/West
Western Terminus:
North Road (NY 27/CR 39) in Southampton
Eastern Terminus:
Montauk Highway (NY 27) in Southampton
Distance:
0.63 miles
Signed:
No
Canal Road, Old North Highway
Direction:
East/West
Western Terminus:
North Road (CR 39) in Shinnecock Hills
Eastern Terminus:
North Road (CR 39) in Shinnecock Hills
Distance:
0.73 miles
Signed:
Yes
North Main Street, Three Mile Harbor Road
Direction:
North/South
Southern Terminus:
Cedar Street in East Hampton
Northern Terminus:
Copeces Lane in East Hampton
Distance:
2.51 miles
Signed:
Yes
Springs-Fireplace Road
Direction:
North/South
Southern Terminus:
Three Mile Harbor Road (CR 40) in East Hampton
Northern Terminus:
Woodbine Drive in East Hampton
Distance:
3.06 miles
Signed:
Yes
Shore Road
Direction:
East/West
Eastern Terminus:
West Neck Road (CR 115) on Shelter Island
Western Terminus:
Rocky Point Avenue on Shelter Island
Distance:
1.20 miles
Signed:
Yes
Northville Turnpike
Direction:
North/South
Southern Terminus:
Roanoke Avenue (CR 73) in Riverhead
Northern Terminus:
Sound Avenue in Northville
Distance:
3.42 miles
Signed:
Yes
William Floyd Parkway
Direction:
North/South
Southern Terminus:
Fire Island Beach Road (CR 75) in Smith Point Park
Northern Terminus:
NY 25A in Shoreham
Distance:
13.78 miles
Signed:
Yes
Great Neck Road, Main Street
Direction:
North/South
Southern Terminus:
Montauk Highway (NY 27A) in Copiague
Northern Terminus:
Nassau-Suffolk border
Distance:
3.77 miles
Signed:
Yes
Middle Road
Direction:
East/West
Western Terminus:
Sound Avenue in Mattituck
Eastern Terminus:
Main Road (NY 25) in Greenport
Distance:
14.21 miles
Signed:
Yes
Edgemere Street, Flamingo Avenue
Direction:
North/South
Southern Terminus:
Montauk Highway (NY 27) in Montauk
Northern Terminus:
West Lake Drive (CR 77) in Montauk
Distance:
3.10 miles
Signed:
Yes

Copyright © 2003-2018 by David Golub. All rights reserved. The author would like to thank William Roll for contributing photographs and LC for contributing documents to this web site. You may not reproduce any text or photographs on this web site without express permission from the author. Hotlinking of images from this site is strictly prohibited. Route symbols based on graphics from Central PA/MD Roads and Wikipedia.