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.
Park Avenue, Simon Street, John Street, Union Boulevard
- Direction:
- East/West
- Western Terminus:
- Little East Neck Road (NY 109) in Babylon
- Eastern Terminus:
- Montauk Highway (NY 27A) in East Islip
- Distance:
- 9.95 miles
- Signed:
- Yes
East Moriches-Riverhead Road, Center Drive South
- Direction:
- North/South
- Southern Terminus:
- Montauk Highway (CR 80) in East Moriches
- Northern Terminus:
- Center Drive (NY 24/CR 94) in Riverhead
- Distance:
- 8.68 miles
- Signed:
- Yes
Sandy Hollow Road
- Direction:
- North/South
- Southern Terminus:
- North Road (NY 27/CR 39) in Southampton
- Northern Terminus:
- North Sea Road (CR 38) in Southampton
- Distance:
- 0.93 miles
- Signed:
- Yes
Hulse Landing Road
- Direction:
- North/South
- Southern Terminus:
- Sound Avenue in Wading River
- Northern Terminus:
- North Wading River Road in Wading River
- Distance:
- 1.02 miles
- Signed:
- Yes
Eastport Manor Road
- Direction:
- North/South
- Southern Terminus:
- Montauk Highway (CR 80) in Eastport
- Northern Terminus:
- East Moriches-Riverhead Road (CR 51) in Eastport
- Distance:
- 0.96 miles
- Signed:
- Yes
Victory Avenue
- Direction:
- East/West
- Western Terminus:
- Horseblock Road (CR 16) in Brookhaven
- Eastern Terminus:
- William Floyd Parkway (CR 46) in Shirley
- Distance:
- 2.20 miles
- Signed:
- Yes
Third Avenue, Roosevelt Street, Howells Road, Bay Shore Road
- Direction:
- North/South
- Southern Terminus:
- Union Boulevard (CR 50) in Bay Shore
- Northern Terminus:
- Deer Park Avenue (NY 231) in North Babylon
- Distance:
- 4.33 miles
- Signed:
- Yes
Old Country Road
- Direction:
- East/West
- Western Terminus:
- Middle Country Road (NY 25) in Riverhead
- Eastern Terminus:
- Main Road (NY 25) in Riverhead
- Distance:
- 4.49 miles
- Signed:
- Yes
Long Lane
- Direction:
- North/South
- Southern Terminus:
- Newtown Lane in East Hampton
- Northern Terminus:
- South of Stephen Hands Path
- Distance:
- 0.99 miles
Noyack-Long Beach Road, Short Beach Road
- Direction:
- North/South
- Southern Terminus:
- Noyack Road in Noyack
- Northern Terminus:
- South Ferry Road (NY 114) in Sag Harbor
- Distance:
- 1.74 miles
- Signed:
- Yes
Waverly Avenue
- Direction:
- North/South
- Southern Terminus:
- Waverly Avenue (CR 19) and Patchogue-Holbrook Road (CR 19) in Holtsville
- Northern Terminus:
- Woodside Avenue (CR 99) in Holtsville
- Distance:
- 0.48 miles
- Signed:
- No
Newtown Road, Sunset Avenue
- Direction:
- North/South
- Southern Terminus:
- Montauk Highway (CR 80) in Hampton Bays
- Northern Terminus:
- Dead end at the Shinnecock Canal
- Distance:
- 0.85 miles
- Signed:
- Yes
Lake Avenue, Peconic Avenue
- Direction:
- North/South
- Southern Terminus:
- East Moriches-Riverhead Road (CR 51) and Center Drive South (CR 51) in Riverhead
- Northern Terminus:
- Main Street (NY 25) in Riverhead
- Distance:
- 1.91 miles
- Signed:
- Yes
Middle Road, Atlantic Avenue, Weeks Street, River Avenue, Division Street
- Direction:
- East/West
- Western Terminus:
- Montauk Highway (CR 85) in Sayville
- Eastern Terminus:
- West Avenue (CR 19) in Patchogue
- Distance:
- 4.72 miles
- Signed:
- Yes
East Deer Park Road
- Direction:
- North/South
- Southern Terminus:
- Northern Parkway and Deer Park Road (NY 231/CR 35) in Dix Hills
- Northern Terminus:
- Jericho Turnpike (NY 25) in Dix Hills
- Distance:
- 0.92 miles
- Signed:
- Yes
Vanderbilt Parkway, Motor Parkway
- Direction:
- East/West
- Western Terminus:
- Half Hollow Road in Dix Hills
- Eastern Terminus:
- Rosevale Avenue (CR 93) in Ronkonkoma
- Distance:
- 14.51 miles
- Signed:
- Yes
Cartwright Road
- Direction:
- North/South
- Southern Terminus:
- North Ferry Road (NY 114) on Shelter Island
- Northern Terminus:
- Ram Island Road on Shelter Island
- Distance:
- 1.43 miles
- Signed:
- Yes
Old Country Road, Mill Road
- Direction:
- East/West
- Western Terminus:
- Montauk Highway (CR 80) in Eastport
- Eastern Terminus:
- Oneck Lane in Westhampton
- Distance:
- 4.01 miles
- Signed:
- Yes
Roanoke Avenue
- Direction:
- North/South
- Southern Terminus:
- Main Street (NY 25) in Riverhead
- Northern Terminus:
- Old Country Road (CR 58) in Riverhead
- Distance:
- 1.27 miles
- Signed:
- Yes
Fire Island Beach Road
- Direction:
- East/West
- Western Terminus:
- William Floyd Parkway (CR 46) in Smith Point Park
- Eastern Terminus:
- Parking fields in Smith Point Park
- Distance:
- 0.50 miles
- Signed:
- No
Townline Road
- Direction:
- East/West
- Western Terminus:
- Smithtown Bypass (NY 347) in Hauppauge
- Eastern Terminus:
- Nichols Road in Nesconset
- Distance:
- 3.21 miles
- Signed:
- Yes
West Lake Drive
- Direction:
- North/South
- Southern Terminus:
- Montauk Highway (NY 27) in Montauk
- Northern Terminus:
- Flamingo Avenue (CR 49) in Montauk
- Distance:
- 3.05 miles
- Signed:
- Yes
Bridgehampton-Sag Harbor Turnpike, Main Street
- Direction:
- North/South
- Southern Terminus:
- Montauk Highway (NY 27) in Bridgehampton
- Northern Terminus:
- Brick Kiln Road in Sag Harbor
- Distance:
- 3.73 miles
- Signed:
- Yes
Montauk Highway
- Direction:
- East/West
- Western Terminus:
- Main Street and Bay Avenue at the Patchogue village line
- Eastern Terminus:
- Montauk Highway (NY 27A) and Knoll Road in Shinnecock Hills
- Distance:
- 32.50 miles
- Signed:
- Yes
Higbie Lane, Udall Road
- Direction:
- North/South
- Southern Terminus:
- Montauk Highway (NY 27A) in West Islip
- Northern Terminus:
- Sunrise Highway (NY 27) in West Islip
- Distance:
- 1.62 miles
- Signed:
- Yes
North Ocean Avenue, Patchogue-Mount Sinai Road
- Direction:
- North/South
- Southern Terminus:
- Sunrise Highway (NY 27) in Patchogue
- Northern Terminus:
- NY 25A in Mount Sinai
- Distance:
- 11.55 miles
- Signed:
- Yes
Montauk Highway, West Main Street
- Direction:
- East/West
- Western Terminus:
- Sunrise Highway (NY 27) and Montauk Highway (NY 27A) in Oakdale
- Eastern Terminus:
- Main Street in Patchogue
- Distance:
- 8.24 miles
- Signed:
- Yes
Broadway, Centerport Road
- Direction:
- North/South
- Southern Terminus:
- Jericho Turnpike (NY 25) in Dix Hills
- Northern Terminus:
- Main Street (NY 25A) in Centerport
- Distance:
- 3.85 miles
- Signed:
- Yes
Dune Road
- Direction:
- East/West
- Western Terminus:
- West of Jessup Lane in Westhampton Beach
- Eastern Terminus:
- East of Jessup Lane in Westhampton Beach
- Distance:
- 1.18 miles
- Signed:
- Yes
Oakwood Road, High Street
- Direction:
- North/South
- Southern Terminus:
- Jericho Turnpike (NY 25) in Huntington Station
- Northern Terminus:
- New York Avenue (NY 110) in Huntington
- Distance:
- 2.89 miles
- Signed:
- Yes
Lakeland Avenue, Ocean Avenue, Rosevale Avenue
- Direction:
- North/South
- Southern Terminus:
- Sunrise Highway (NY 27) in Bohemia
- Northern Terminus:
- Smithtown Boulevard (CR 16) in Ronkonkoma
- Distance:
- 5.45 miles
- Signed:
- Yes
Nugent Drive, Center Drive
- Direction:
- East/West
- Western Terminus:
- Long Island Expressway (I-495) in Calverton
- Eastern Terminus:
- Flanders Road (NY 24), Old East Moriches-Riverhead Road (CR 63), Peconic Avenue (CR 63), and Riverleigh Avenue (CR 104) in Riverhead
- Distance:
- 4.57 miles
- Signed:
- Yes
Center Drive Spur
- Direction:
- North/South
- Southern Terminus:
- Nugent Drive (NY 24/CR 94) in Riverhead
- Northern Terminus:
- Main Street (NY 25) in Riverhead
- Distance:
- 0.15 miles
- Signed:
- Yes
Bergen Avenue, Great East Neck Road
- Direction:
- North/South
- Southern Terminus:
- Dead end at Great South Bay
- Northern Terminus:
- Little East Neck Road (NY 109) in West Babylon
- Distance:
- 2.05 miles
- Signed:
- Yes
Nicolls Road
- Direction:
- North/South
- Southern Terminus:
- Montauk Highway (CR 85) in Blue Point
- Northern Terminus:
- North Country Road (NY 25A) in Stony Brook
- Distance:
- 14.38 miles
- Signed:
- Yes
Frowein Road
- Direction:
- East/West
- Western Terminus:
- Montauk Highway (CR 80) in Moriches
- Eastern Terminus:
- Montauk Highway (CR 80) in East Moriches
- Distance:
- 3.03 miles
- Signed:
- Yes
Woodside Avenue
- Direction:
- East/West
- Western Terminus:
- Patchogue-Holbrook Road (CR 19) in Holtsville
- Eastern Terminus:
- Horseblock Road (CR 16) in Yaphank
- Distance:
- 6.45 miles
- Signed:
- Yes
Suffolk Avenue
- Direction:
- East/West
- Western Terminus:
- Wicks Road (CR 13) in Brentwood
- Eastern Terminus:
- Veterans Highway (NY 454) in Islandia
- Distance:
- 4.80 miles
- Signed:
- Yes
Patchogue-Yaphank Road, Sills Road
- Direction:
- North/South
- Southern Terminus:
- Montauk Highway (CR 80) in East Patchogue
- Northern Terminus:
- Sills Road and Long Island Avenue in Yaphank
- Distance:
- 5.32 miles
- Signed:
- Yes
Quogue-Riverhead Road, Riverleigh Avenue
- Direction:
- North/South
- Southern Terminus:
- Montauk Highway (CR 80) in Quogue
- Northern Terminus:
- Nugent Drive (NY 24/CR 94), Flanders Road (NY 24), Lake Avenue (CR 63), and Peconic Avenue (CR 63) in Riverhead
- Distance:
- 7.45 miles
- Signed:
- Yes
Cross River Drive
- Direction:
- North/South
- Southern Terminus:
- Quogue-Riverhead Road (CR 104) in Riverhead
- Northern Terminus:
- Sound Avenue in Northville
- Distance:
- 5.30 miles
- Signed:
- Yes
Community College Drive
- Direction:
- East/West
- Western Terminus:
- Crooked Hill Road (CR 13) in Brentwood
- Eastern Terminus:
- Wicks Road (CR 7) in Brentwood
- Distance:
- 0.47 miles
- Signed:
- Yes
Old Willets Path
- Direction:
- North/South
- Southern Terminus:
- Motor Parkway (CR 67) in Hauppauge
- Northern Terminus:
- Rabro Drive (CR 6) in Hauppauge
- Distance:
- 0.24 miles
- Signed:
- No
Captain Daniel Roe Highway
- Direction:
- East/West
- Western Terminus:
- Long Island Expressway (I-495) in Manorville
- Eastern Terminus:
- Sunrise Highway (NY 27) in Eastport
- Distance:
- 4.77 miles
- Signed:
- Yes
Johnson Avenue
- Direction:
- North/South
- Southern Terminus:
- Sunrise Highway (NY 27) in Bohemia
- Northern Terminus:
- Veterans Highway (NY 454) at the entrance to Long Island MacArthur Airport
- Distance:
- 1.39 miles
- Signed:
- No
West Neck Road
- Direction:
- East/West
- Western Terminus:
- Shore Road (CR 42) on Shelter Island
- Eastern Terminus:
- North Ferry Road (NY 114) on Shelter Island
- Distance:
- 0.56 miles
- Signed:
- Yes
Smith Street, North Menantic Road
- Direction:
- North/South
- Southern Terminus:
- Midway Road on Shelter Island
- Northern Terminus:
- West Neck Road (CR 115) on Shelter Island
- Distance:
- 1.18 miles
- Signed:
- Yes
Burns Road
- Direction:
- East/West
- Western Terminus:
- St. Mary's Road on Shelter Island
- Eastern Terminus:
- Cartwright Road (CR 69) on Shelter Island
- Distance:
- 0.45 miles
- Signed:
- Yes