| Route[2]
|
Length
(mi)[3]
|
Length
(km)
|
From
|
Via
|
To
|
Notes
|
 CR 600
|
0.57
|
0.92
|
Route 31 in Raritan Township
|
Wescott Drive
|
CR 612 in Raritan Township
|
|
 CR 601
|
3.65
|
5.87
|
CR 518 in West Amwell
|
Mount Airy-Harbourton Road, Mount Airy Village Road
|
Route 179 in West Amwell
|
Partially on the Mercer–Hunterdon county line
|
 CR 602
|
6.31
|
10.15
|
Route 179 in East Amwell
|
Wertsville Road
|
Wertsville Road at the Somerset County line in East Amwell
|
|
 CR 603
|
0.54
|
0.87
|
Route 179 in West Amwell
|
Village Road
|
CR 601 in West Amwell
|
Maintained by West Amwell since 1981[4]
|
| CR 603
|
1.26
|
2.03
|
Shurts Road at the Warren County line in Bethlehem Township
|
Valley Road
|
Main Street (CR 645) in Hampton
|
Decommissioned in 1981[4]
|
 CR 604
|
7.27
|
11.70
|
CR 519 in Delaware Township
|
Rosemont-Ringoes Road
|
CR 579 in East Amwell
|
|
 CR 605
|
3.60
|
5.79
|
Route 179 in West Amwell
|
Queen Road, Sand Ridge-Mount Airy Road, Cemetery Road
|
CR 523 in Delaware Township
|
|
 CR 606
|
0.4
|
0.6
|
Old Croton Road (CR 608) in Raritan Township
|
Capner Street Extension
|
Capner Street at the Raritan Township–Flemington border
|
Decommissioned in 1981[4]
|
 CR 607
|
2.08
|
3.35
|
Hopewell-Wertsvlle Road at the Mercer County line in East Amwell
|
Rileyville Road
|
CR 602 in East Amwell
|
|
 CR 608
|
3.95
|
6.36
|
Route 12 in Delaware Township
|
Old Croton Road
|
Capner Street Extension (CR 606)/Dayton Road in Raritan Township
|
Decommissioned in 1981[4]
|
 CR 609
|
2.31
|
3.72
|
CR 602 in East Amwell
|
Manners Road
|
CR 514 in East Amwell
|
|
 CR 610
|
0.82
|
1.32
|
Uhlerstown–Frenchtown Bridge / Front Street in Frenchtown
|
Bridge Street, Race Street, Kingwood Avenue
|
Route 12 / Horseshoe Bend Road in Frenchtown
|
County-maintained portion of Route 12
|
 CR 611
|
0.80
|
1.29
|
US 202/Route 31 in Raritan Township
|
South Main Street
|
Route 12 in Flemington
|
|
 CR 612
|
1.93
|
3.11
|
CR 617 in Raritan Township
|
Sand Hill Road, Bartles Corner Road
|
CR 523 in Raritan Township
|
|
 CR 613
|
3.68
|
5.92
|
CR 514 in Raritan Township
|
Old York Road, Main Street
|
US 202 in Readington
|
Partially former CR 514 Spur[5]
|
 CR 614
|
7.70
|
12.39
|
CR 519 in Holland Township
|
Spring Mills-Little York Road, Little York Road
|
I-78/US 22 / Route 173 in Union Township
|
|
 CR 615
|
5.24
|
8.43
|
Route 12 in Kingwood Township
|
Pittstown Road
|
CR 579 in Franklin Township
|
|
 CR 616
|
2.08
|
3.35
|
CR 579 in Franklin Township
|
Quakertown Road
|
CR 617 in Franklin Township
|
|
 CR 617
|
8.72
|
14.03
|
Flemington border in Raritan Township
|
Thatcher Hill Road, Klinesville Road, Cherryville Road, Sidney Road
|
CR 513 in Union Township
|
|
 CR 618
|
0.50
|
0.80
|
Route 31 in Clinton Township
|
Stanton Grange Road
|
CR 629 in Clinton Township
|
|
 CR 619
|
3.05
|
4.91
|
7th Street in Frenchtown
|
Milford-Frenchtown Road
|
CR 519 in Milford
|
|
 CR 620
|
4.22
|
6.79
|
CR 523 in Readington
|
East Dreahook Road, Readington Road
|
CR 637 at the Somerset County line in Readington
|
|
 CR 621
|
0.74
|
1.19
|
CR 629 in Clinton Township
|
Round Valley Road
|
US 22 in Clinton Township
|
Designated by the New Jersey Department of Transportation as CR 751[6]
|
| CR 621
|
1.62
|
2.61
|
Quakertown Road (CR 616) in Franklin Township
|
Sidney Road
|
Cherryville Road / Sidney Road (CR 617) in Franklin Township
|
Decommissioned in 1981[4]
|
 CR 623
|
2.50
|
4.02
|
Regional Road/Mitchell Lane on the Clinton/Clinton Township border
|
Allerton Road, Wellington Drive, Hamden Road
|
Route 31 in Clinton Township
|
|
 CR 624
|
1.28
|
2.06
|
US 22 / CR 523 in Readington
|
Old Highway 28
|
US 22 in Readington
|
Decommissioned in 1981[4]
|
 CR 625
|
5.04
|
8.11
|
CR 513 in Alexandria Township
|
Mechlin Corner Road
|
Route 173 in Union Township
|
|
 CR 626
|
1.21
|
1.95
|
Greyrock Road in Annandale
|
Beaver Avenue
|
Ramp from US 22 westbound in Annandale
|
|
 CR 627
|
6.05
|
9.74
|
Milford border in Holland Township
|
Riegelsville-Milford Road
|
CR 627 at Warren County line in Holland Township
|
|
 CR 628
|
5.25
|
8.45
|
Route 31 in Glen Gardner
|
Main Street, Hill Road, Bunnvale Road
|
CR 513 in Lebanon Township
|
|
 CR 629
|
12.71
|
20.45
|
CR 629 at Somerset County line in Readington
|
Pleasant Run Road, Stanton Road, Stanton-Lebanon Road
|
Main Street in Lebanon
|
Maintained by Lebanon Borough inside borough limits
|
 CR 631
|
1.73
|
2.78
|
CR 519 on the Alexandria/Holland township line
|
Little York-Mount Pleasant Road
|
CR 614 in Holland Township
|
|
 CR 633
|
0.69
|
1.11
|
Route 31 in Clinton Township
|
Old Allerton Road
|
CR 626 in Annandale
|
|
 CR 635
|
6.31
|
10.15
|
Route 173 in Union Township
|
Charlestown Road, New Street, Main Street
|
Route 31 in Glen Gardner
|
|
 CR 637
|
0.48
|
0.77
|
CR 620/CR 637 in Readington Township
|
Readington Road
|
CR 637 / Baird Road in Readington
|
Travels along the Somerset–Hunterdon county line
|
 CR 639
|
5.73
|
9.22
|
US 22 in Lebanon
|
Cokesbury Road, River Road
|
High Bridge line in Clinton Township
|
|
 CR 641
|
1.32
|
2.12
|
CR 626 in Clinton Township
|
West Street, Dewey Avenue
|
High Bridge line in Clinton Township
|
|
 CR 643
|
2.81
|
4.52
|
Route 173 in Bethlehem Township
|
West Portal-Asbury Road, Asbury Road
|
CR 643 at the Warren County line Bethlehem Township
|
|
 CR 645
|
3.45
|
5.55
|
Route 31 in Hampton
|
Musconecong River Road
|
Butler Park Road in Lebanon Township
|
Formerly extended along Main Street in Hampton and Glen Gardner until 1981[4]
|
 CR 647[7]
|
0.61
|
1.0
|
Route 31 in Flemington
|
Flemington Junction Road
|
CR 523 in Raritan Township
|
|
 CR 649
|
0.25
|
0.40
|
Old York Road at the Lambertville–West Amwell border
|
Old York Road
|
Route 179 in West Amwell
|
Decommissioned in 1981[4]
|
 CR 650
|
2.44
|
3.93
|
Route 31 in Flemington
|
Vorhees Corner Road
|
CR 613 in Raritan Township
|
Formerly CR 514 Spur[5]
|
 CR 651
|
4.53
|
7.29
|
Route 29 in Kingwood Township
|
Byram-Kingwood Road
|
CR 519 in Kingwood Township
|
Formerly CR 519 Spur[5]
|
 CR 652
|
0.17
|
0.27
|
CR 600 in Raritan Township
|
Gauntt Road
|
Route 31 in Raritan Township
|
|
