The following is a list of county routes in Somerset County in the U.S. state of New Jersey. For more information on the county route system in New Jersey as a whole, including its history, see County routes in New Jersey.
In addition to those listed below, the following 500-series county routes serve Somerset County: [1]
Route [2] [3] | Length (mi) [3] | Length (km) | From | Via | To | Notes |
---|---|---|---|---|---|---|
![]() | 7.21 | 11.60 | Great Road and Cherry Valley Road at the Mercer County line in Montgomery Township | Great Road, Belle Mead–Blawenburg Road, Trent Avenue | US 206 in Montgomery Township | |
![]() | 0.52 | 0.84 | Camp Meeting Avenue and CSX's Trenton Subdivision in Montgomery Township | Skillman Road | Belle Mead–Blawenburg Road (CR 601) and Skillman Road in Montgomery Township | |
![]() | 1.85 | 2.98 | Route 27 and Heathcote Road on the Franklin/South Brunswick township line | Laurel Avenue, Kingston–Rocky Hill Road | Georgetown–Franklin Turnpike (CR 518) and Canal Road in Franklin Township | |
![]() | 1.50 | 2.41 | Belle Meade–Blawenburg Road (CR 601) in Montgomery Township | Dutchtown–Harlingen Road | US 206 and Harlingen Road in Montgomery Township | |
![]() | 1.57 | 2.53 | River Road (CR 605) at the Mercer County line in Montgomery Township | River Road, Crescent Avenue | Washington Street (CR 518) in Rocky Hill | |
![]() | 0.26 | 0.42 | South Branch Road (CR 567) in Branchburg | Studdiford Drive | River Road (CR 625) in Hillsborough | |
![]() | 1.14 | 1.83 | Route 27 on the Franklin/South Brunswick township line | Old Road | Dead end on the Franklin/South Brunswick township line | Unsigned, follows the Franklin/South Brunswick township line; also known as CR 618 [4] |
![]() | 1.67 | 2.69 | US 206 in Hillsborough | Dukes Parkway East | North Main Street (CR 533) in Manville | |
![]() | 1.91 | 3.07 | River Road (CR 533) in Montgomery Township | Bridgepoint Road | US 206 in Montgomery Township | Decommissioned in 2006, [5] but still signed [6] |
![]() | 1.05 | 1.69 | Canal Road (CR 623) in South Bound Brook | Edgewood Terrace | Main Street (CR 527) in South Bound Brook | |
![]() | 1.34 | 2.16 | Main Street (Route 28) and North Gaston Avenue (Route 28) in Somerville | East Main Street | East Main Street (CR 533) and Finderne Avenue (CR 533/CR 633) in Bridgewater | |
![]() | 5.62 | 9.04 | Valley Road (CR 512) in Bernards Township | Stonehouse Road, South Finley Avenue, North Finley Avenue, Childs Road | US 202 in Bernards Township | |
![]() | 2.13 | 3.43 | US 22 in Branchburg | Easton Turnpike | US 22 and Easton Turnpike (Route 28) in Bridgewater | |
![]() | 5.23 | 8.42 | Route 27 on the Franklin/South Brunswick township line | South Middlebush Road | Amwell Road (CR 514) in Franklin Township | |
![]() | 2.79 | 4.49 | Washington Valley Road (CR 525) and Chimney Rock Road (CR 527) in Bridgewater | Washington Valley Road | Washington Valley Road (CR 527) and Morning Glory Road (CR 527) in Warren Township | |
![]() | 1.91 | 3.07 | Route 27 on the Franklin Township/New Brunswick border | Franklin Boulevard | Landing Lane (CR 609) at the Middlesex County line in Franklin Township | |
![]() | 3.58 | 5.76 | Liberty Corner Road (CR 525) on the Bernards/Warren township line | Mt Horeb Road | Mt Bethel Road (CR 651) in Warren Township | Designated by the New Jersey Department of Transportation as CR 607 [7] |
![]() | 3.05 | 4.91 | Amwell Road (CR 514) in Franklin Township | Cedar Grove Lane | Easton Avenue (CR 527) in Franklin Township | |
![]() | 9.24 | 14.87 | Rattlesnake Bridge Road (CR 665) in Bedminster | Burnt Mills Road, Washington Valley Road | Mt Horeb Road (CR 525) and Washington Valley Road (CR 525) in Bridgewater | |
![]() | 4.30 | 6.92 | Amwell Road (CR 514) in Franklin Township | Elizabeth Avenue, Elizabeth Street | Canal Road (CR 623) in South Bound Brook | |
![]() | 1.46 | 2.35 | Stirling Road (CR 653) in Warren Township | Mountain Avenue | Mountain Avenue (CR 622) at the Union County line in Warren Township | |
![]() | 4.15 | 6.68 | South Main Street (CR 533) in Manville | Wilhousky Street, Manville Causeway, Weston Canal Road, Canal Road | Main Street (CR 527) in South Bound Brook | |
![]() | 1.03 | 1.66 | Mt Airy Road (CR 525) in Bernards Township | West Oak Street, East Oak Street | South Maple Avenue (CR 657) and North Maple Avenue (CR 657) in Bernards Township | |
![]() | 8.27 | 13.31 | Amwell Road (CR 514) in Hillsborough | Marshall Road, South Branch Road, River Road, Lyman Street | First Avenue (CR 567) and Somerset Street (CR 567/CR 626) in Raritan | |
![]() | 1.04 | 1.67 | First Avenue CR 567, Somerset Street (CR 567), and Lyman Street (CR 625) in Raritan | Somerset Street | West End Avenue (Route 28) in Somerville | |
![]() | 3.34 | 5.38 | South Branch Road (CR 625) in Hillsborough | New Centre Road | Roycefield Road and Dukes Parkway West in Hillsborough | |
![]() | 0.09 | 0.14 | Main Street (CR 671) and Old Chester Road (CR 671) in Peapack-Gladstone | Jackson Avenue | Mendham Road (CR 647) in Peapack-Gladstone | |
![]() | 1.70 | 2.74 | Pleasant Run Road (CR 567) and South Branch Road (CR 567) in Branchburg | Pleasant Run Road | Pleasant Run Road (CR 629) at the Hunterdon County line in Branchburg | |
![]() | 2.71 | 4.36 | US 206 in Montgomery Township | Belle Mead-Griggstown Road, Griggstown Road | River Road (CR 533) in Montgomery Township | |
![]() | 0.34 | 0.55 | US 22 in North Plainfield | Somerset Street, Johnston Drive | Watchung Avenue (CR 531) in Watchung | |
![]() | 3.28 | 5.28 | River Road (CR 533) in Montgomery Township | Griggstown Causeway, Canal Road, Bunkerhill Road | Route 27 on the Franklin Township/South Brunswick township line | |
![]() | 0.93 | 1.50 | Finderne Avenue (CR 533) and East Main Street (CR 533/CR 612) in Bridgewater | Finderne Avenue | US 22 in Bridgewater | |
![]() | 3.24 | 5.21 | Sebrings Mills Road in Green Brook | Greenbrook Road, Warrenville Road | Rock Avenue (CR 645) on the Green Brook/North Plainfield border | |
![]() | 0.48 | 0.77 | Talmage Avenue (CR 533) in Bound Brook | Vosseller Avenue | Union Avenue (Route 28) in Bound Brook | |
![]() | 1.97 | 3.17 | Rock Avenue (CR 645) on the Green Brook/North Plainfield border | Greenbrook Road | Mountain Avenue (CR 531) in North Plainfield | |
![]() | 4.80 | 7.72 | Old York Road (CR 567) and South Branch Road (CR 567) in Branchburg | Old York Road, Dreahook Road, Readington Road, Raritan Valley College Road | Easton Turnpike (CR 614) in Branchburg | |
![]() | 0.36 | 0.58 | Washington Valley Road (CR 527) and Mountain Boulevard (CR 527) in Warren Township | Washington Valley Road Extension | Warrenville Road (CR 651) in Warren Township | |
![]() | 2.61 | 4.20 | Pannone Drive and Grove Street in Bridgewater | North Bridge Street, Foothill Road | US 202/US 206 in Bridgewater | |
![]() | 2.26 | 3.64 | Church Street (CR 512) and Valley Road (CR 512) in Bernards Township | Lyons Road, South Finley Avenue | Stonehouse Road (CR 613) and South Finley Avenue (CR 613) in Bernards Township | |
![]() | 2.39 | 3.85 | Easton Turnpike (CR 614) in Branchburg | Burnt Mills Road, Cowperthwaite Road | Burnt Mills Road (CR 620) in Bedminster | |
![]() | 1.51 | 2.43 | Somerset Street (CR 531) in North Plainfield | Mountain Avenue | US 22 in North Plainfield | |
![]() | 0.80 | 1.29 | Somerset Street (CR 626) in Somerville | Mountain Avenue | US 22 on the Bridgewater/Somerville border | |
![]() | 0.39 | 0.63 | Dead end in Raritan | Frelinghuysen Avenue | West End Avenue (Route 28) on the Raritan/Bridgewater border | |
![]() | 0.64 | 1.03 | Rock Avenue at the Union County line on the Green Brook/North Plainfield border | Rock Avenue | US 22 on the Green Brook/North Plainfield border | |
![]() | 0.56 | 0.90 | US 202 in Branchburg | Chubb Way | South Branch Road (CR 567) in Branchburg | |
![]() | 1.06 | 1.71 | Main Street (CR 512) in Peapack-Gladstone | Mendham Road | Mendham Road at the Morris County line in Peapack-Gladstone | |
![]() | 1.34 | 2.16 | Route 27 on the Franklin/South Brunswick township line | Claremont Road | South Middlebush Road (CR 615) in Franklin Township | |
![]() | 0.95 | 1.53 | Grant Avenue at Union County line in North Plainfield | West End Avenue | US 22 in North Plainfield | |
![]() | 0.82 | 1.32 | Dead end in Hillsborough | Schilke Lane, Amwell Road | Millstone River Road (CR 533) in Millstone | |
![]() | 6.13 | 9.87 | Warrenville Road at the Middlesex County line in Green Brook | Warrenville Road, Mt Bethel Road, King George Road | Valley Road (CR 512) in Bernards Township | |
![]() | 4.66 | 7.50 | I-287 in Bedminster | Schley Mountain Road, Allen Road | Martinsville Road (CR 525) in Bernards Township | Unsigned |
![]() | 3.02 | 4.86 | Mountain Boulevard (CR 527), Somerset Street (CR 531), Valley Road (CR 527), and Hillcrest Road (CR 531) at the Watchung Circle in Watchung | Stirling Road | Plainfield Road (CR 606) at the Morris County line in Warren Township | |
![]() | 0.23 | 0.37 | East Main Street (CR 533) in Bound Brook | East High Street, Veterans Memorial Drive | East Street (CR 689) in Bound Brook | |
![]() | 0.82 | 1.32 | Park Avenue (CR 655) and Bonnie Burn Road at the Union County line in Watchung | New Providence Road | Diamond Hill Road (CR 655) at the Union County line in Watchung | |
![]() | 0.07 | 0.11 | Route 27 in Franklin Township | Andover Drive | Old Road (CR 607) on the Franklin/South Brunswick township line | Unsigned |
![]() | 2.07 | 3.33 | Basking Ridge Road (CR 657) at the Morris County line in Bernards Township | South Maple Avenue | East Oak Street (CR 624) in Bernards Township | |
![]() | 0.26 | 0.42 | Millstone River Road (CR 533) in Hillsborough | Blackwells Mills Road | Canal Road in Franklin Township | |
![]() | 2.48 | 3.99 | Claremont Road (CR 525) and Mendham Road (CR 525) in Bernardsville | Claremont Road, Turnbull Lane, Dryden Road | Bliss Road at the Morris County line in Bernardsville | |
![]() | 0.07 | 0.11 | Amwell Road (CR 514) in Hillsborough | Byara Court | Dead end in Hillsborough | Unsigned |
![]() | 0.45 | 0.72 | US 206 in Peapack-Gladstone | Holland Avenue | Main Street (CR 512) in Peapack-Gladstone | |
![]() | 0.27 | 0.43 | Dead end in Hillsborough | Brower Lane | Dead end in Hillsborough | Unsigned |
![]() | 0.06 | 0.10 | Ramp to US 22 at the Union County line in Watchung | Union Avenue | New Providence Road (CR 655) in Watchung | |
![]() | 4.15 | 6.68 | Easton Turnpike (CR 614) in Branchburg | Lamington Road, Rattlesnake Bridge Road | Lamington Road (CR 523) in Bedminster | Former CR 523 Spur |
![]() | 0.99 | 1.59 | River Road (CR 567) in Hillsborough | Elm Street, Maple Avenue, Pleasant Run Road | River Road (CR 567) and Pleasant Run Road (CR 567) in Branchburg | |
![]() | 0.83 | 1.34 | Main Street (CR 512) and Pottersville Road (CR 512) in Peapack-Gladstone | Main Street, Old Chester Road | Old Chester Road at the Morris County line in Peapack-Gladstone | |
![]() | 0.95 | 1.53 | North Bridge Street (CR 639) and Prince Rodgers Avenue in Bridgewater | Vogt Drive | North Gaston Avenue in Bridgewater | |
![]() | 1.94 | 3.12 | Dead end in Bridgewater | Polhemus Lane, Chimney Rock Road | Chimney Rock Road (CR 525) and Thompson Avenue (CR 525) in Bridgewater | |
![]() | 0.70 | 1.13 | Amwell Road (CR 514) in Hillsborough | East Mountain Road | South Branch Road (CR 625) in Hillsborough | |
![]() | 1.56 | 2.51 | Readington Road (CR 637) in Branchburg | Station Road | Easton Turnpike (CR 614) in Branchburg | |
![]() | 0.10 | 0.16 | Schilke Drive (CR 650) and Amwell Road (CR 650) in Hillsborough | Amsterdam Drive | Amwell Road (CR 514) in Hillsborough | |
![]() | 0.52 | 0.84 | East Main Street (CR 533) in Bridgewater | Foothill Road | Chimney Rock Road (CR 675) in Bridgewater | |
![]() | 0.66 | 1.06 | East Main Street (CR 533) in Bridgewater | Promenade Boulevard | Union Avenue (Route 28) in Bridgewater | |
![]() | 0.53 | 0.85 | Talmage Avenue (CR 533) in Bound Brook | Tea Street | East Main Street (Route 28) in Bound Brook | |
![]() | 0.34 | 0.55 | East Main Street (CR 527/CR 533) in Bound Brook | Bolmer Boulevard, East Street | Union Avenue (Route 28) in Bound Brook | |
![]() | 0.08 | 0.13 | South Middlebush Road (CR 615) in Franklin Township | South Middlebush Road Extension | Dead end in Franklin Township | Unsigned |
![]() | 0.06 | 0.10 | Amwell Road (CR 514) in Hillsborough | Service Road | Brower Lane (CR 662) in Hillsborough | Unsigned |
![]() | 0.9 | 1.45 | Bonnie Burn Road and US 22 at the Union County line in Watchung | Bonnie Burn Road | Valley Road (CR 527) and Plainfield Avenue (CR 641) in Watchung | Assigned in October 2023 to replace the former southern segment of CR 641 [8] |