Note on Nassau County Routes: When the federal government instituted standards for county route signs, Nassau did not have enough money to pay for the new signs necessary to comply. Therefore, all county route signs in Nassau were taken down and all county routes are unsigned. Even though a number of county roads in Nassau have route numbers, there are no signs that make reference to them anywhere. There are currently two sets of route numbers for county roads in Nassau. One set is recognized by the New York State Department of Transportation and is referenced in documents from the state. These numbers are used on this web site. An alternative set of route numbers is recognized by Nassau County but not actually used other than in an atlas kept by the NCDPW that cannot be reproduced.
 | Clinton Road, Glen Cove Road |
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Direction: North/South Southern Terminus: Peninsula Boulevard (CR 2) in Hempstead Eastern Terminus: Glen Cove Road (NY 904) in Greenvale Distance: 7.59 miles Signed: No | |
 | Peninsula Boulevard |
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Direction: North/South Southern Terminus: Bay Boulevard (CR 2A) and Rockaway Turnpike (CR 257) in Inwood Northern Terminus: Fulton Avenue (NY 24/CR 107) in Hempstead Distance: 9.00 miles Signed: No | |
 | Bay Boulevard |
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Direction: North/South Southern Terminus: Nassau Expressway (NY 878) in Inwood Northern Terminus: Peninsula Boulevard (CR 2) and Rockaway Turnpike (CR 257) in Inwood Distance: 0.15 miles Signed: No | |
 | Merrick Avenue, Post Avenue, Post Road |
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Direction: North/South Southern Terminus: Merrick Road (CR 27) in Merrick Northern Terminus: Wheatley Road in Old Westbury Distance: 9.84 miles Signed: No | |
 | Franklin Avenue |
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Direction: North/South Southern Terminus: Front Street (NY 102/CR 106) in Hempstead Northern Terminus: Old Country Road (CR 25) in Garden City Distance: 2.39 miles Signed: No | |
 | New Hyde Park Road |
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Direction: North/South Southern Terminus: Hempstead Turnpike (NY 24) in Franklin Square Northern Terminus: Long Island Expressway (I-495) in North Hills Distance: 4.39 miles Signed: No | |
 | Washington Avenue, Roslyn Road, Main Street, Old Northern Boulevard |
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Direction: North/South Southern Terminus: Peninsula Boulevard (CR 2) in Hempstead Northern Terminus: West Shore Road (CR 15) in Roslyn Distance: 7.16 miles Signed: No | |
 | South Main Street, North Main Street, Nassau Road, Greenwich Street |
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Direction: North/South Southern Terminus: Merrick Road (CR 27) in Freeport Northern Terminus: Front Street (NY 102/CR 106) in Hempstead Distance: 4.40 miles Signed: No | |
 | Herricks Road, Shelter Rock Road |
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Direction: North/South Southern Terminus: Old Country Road (CR 25) and Rockaway Avenue in Garden City Northern Terminus: Northern Boulevard (NY 25A) in Manhasset Distance: 5.00 miles Signed: No | |
 | South Oyster Bay Road, Jackson Avenue, Berry Hill Road |
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Direction: North/South Southern Terminus: Hicksville Road (NY 107) in Bethpage Northern Terminus: Northern Boulevard (NY 25A) in Oyster Bay Cove Distance: 7.00 miles Signed: No | |
 | Lakeville Road, Middle Neck Road |
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Direction: North/South Southern Terminus: Jericho Turnpike (NY 25) in New Hyde Park Northern Terminus: Red Brook Road in Great Neck Distance: 6.39 miles Signed: No | |
 | Community Drive |
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Direction: North/South Southern Terminus: Long Island Expressway (I-495) in Lake Success Northern Terminus: East Shore Road and Northern Boulevard (NY 25A) in Manhasset Distance: 1.35 miles Signed: No | |
 | Prospect Avenue, West John Street, East Barclay Street, Woodbury Road |
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Direction: East/West Western Terminus: Brush Hollow Road (CR 63) in Westbury Eastern Terminus: Pulaski Road (Suffolk CR 11) and Harbor Road (NY 108) at the Nassau-Suffolk border Distance: 8.81 miles Signed: No | |
 | West Shore Road, Beacon Hill Road |
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Direction: North/South Southern Terminus: Old Northern Boulevard (CR 7A) in Roslyn Northern Terminus: Port Washington Boulevard (NY 101) in Port Washington Distance: 3.89 miles Signed: No | |
 | Park Street, Beech Street |
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Direction: East/West Western Terminus: Nassau Expressway (NY 878) in Atlantic Beach Eastern Terminus: Nevada Avenue at the Long Beach city line Distance: 2.01 miles Signed: No | |
 | Old Country Road |
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Direction: East/West Western Terminus: Herricks Road (CR 8) and Rockaway Avenue in Garden City Eastern Terminus: Round Swamp Road (CR 110) in Plainview Distance: 11.40 miles Signed: No | |
 | Bellmore Avenue |
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Direction: North/South Southern Terminus: Merrick Road (CR 27) in Bellmore Northern Terminus: Merrick Avenue (CR 4) in East Meadow Distance: 3.84 miles Signed: No | |
 | Merrick Road |
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Direction: East/West Western Terminus: Merrick Boulevard at the Queens-Nassau border Eastern Terminus: Montauk Highway (NY 27A) and County Line Road (Suffolk CR 1) at the Nassau-Suffolk border Distance: 16.76 miles Signed: No | |
 | Grand Avenue, Baldwin Road |
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Direction: North/South Southern Terminus: Atlantic Avenue in Baldwin Northern Terminus: Jerusalem Avenue (CR 105) in Hempstead Distance: 4.43 miles Signed: No | |
 | Union Avenue, Brush Hollow Road |
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Direction: North/South Southern Terminus: Post Avenue (CR 4) in Westbury Northern Terminus: Jericho Turnpike (NY 25) in Jericho Distance: 2.52 miles Signed: No | |
 | Doughty Boulevard |
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Direction: North/South Southern Terminus: Nassau Expressway (NY 878) in Lawrence Northern Terminus: Burnside Avenue in Inwood Distance: 1.87 miles Signed: No | |
 | East Williston Avenue |
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Direction: East/West Western Terminus: Railroad tracks Eastern Terminus: Overpass over Northern Parkway Distance: 0.66 miles Signed: No | |
 | Searingtown Road |
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Direction: North/South Southern Terminus: Shelter Rock Road (CR 8) and Herricks Road (CR 8) in Herricks Northern Terminus: Port Washington Boulevard (NY 101) and Northern Boulevard (NY 25A) in Manhasset Distance: 2.79 miles Signed: No | |
 | Jerusalem Avenue |
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Direction: East/West Western Terminus: Greenwich Street (CR 7B) in Hempstead Eastern Terminus: Jerusalem Avenue (NY 105) and Newbridge Road (NY 106) in North Bellmore Distance: 4.14 miles Signed: No | |
 | Front Street |
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Direction: East/West Western Terminus: Hempstead Turnpike (NY 24) and Hempstead Avenue in West Hempstead Eastern Terminus: William Street in Hempstead Distance: 1.28 miles Signed: No | |
 | Fulton Avenue |
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Direction: East/West Western Terminus: Franklin Avenue (CR 5A) in Hempstead Eastern Terminus: Truro Lane in Hempstead Distance: 0.94 miles Signed: No | |
 | Round Swamp Road |
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Direction: North/South Southern Terminus: Bethpage Road and Quaker Meeting House Road in Bethpage Northern Terminus: Long Island Expressway (I-495) at the Nassau-Suffolk border Distance: 3.41 miles Signed: No | |
 | Stewart Avenue |
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Direction: East/West Western Terminus: Covert Avenue in Stewart Manor Eastern Terminus: Cherry Valley Avenue and Cathedral Avenue in Garden City Distance: 2.32 miles Signed: No | |
| Stewart Avenue |
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Direction: East/West Western Terminus: Clinton Road (CR 1) in Garden City Eastern Terminus: Merrick Avenue (CR 4) in Garden City Distance: 1.99 miles Signed: No | |
 | North Jerusalem Road |
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Direction: East/West Western Terminus: Jerusalem Avenue (CR 105) in North Merrick Eastern Terminus: Wantagh Avenue (CR 189) in Wantagh Distance: 3.95 miles Signed: No | |
 | Uniondale Avenue |
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Direction: North/South Southern Terminus: Nassau Road (CR 7B) in Uniondale Northern Terminus: Earle Ovington Boulevard and Hempstead Turnpike (NY 24) in Uniondale Distance: 2.02 miles Signed: No | |
 | Wantagh Avenue |
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Direction: North/South Southern Terminus: Merrick Road (CR 27) in Wantagh Northern Terminus: Hicksville Road (NY 107) in Bethpage Distance: 5.17 miles Signed: No | |
 | East Park Avenue, Lido Boulevard |
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Direction: East/West Western Terminus: Long Beach Boulevard in Long Beach Eastern Terminus: Dead end in Point Lookout Distance: 4.35 miles Signed: No | |
 | Pratt Boulevard |
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Direction: East/West Western Terminus: Glen Cove Avenue and Brewster Street in Glen Cove Eastern Terminus: Glen Cove Road (NY 107) and Pulaski Street in Glen Cove Distance: 0.22 miles Signed: No | |
 | Rockaway Turnpike |
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Direction: North/South Southern Terminus: Meadow Lane and Broadway in Lawrence Northern Terminus: Rockaway Boulevard at the Queens-Nassau border Distance: 1.46 miles Signed: No | |
 | Zeckendorf Boulevard |
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Direction: East/West Western Terminus: Meadowbrook Parkway at the Roosevelt Field Shopping Mall Eastern Terminus: Old Country Road (CR 25) in Garden City Distance: 0.85 miles Signed: No |
