List of county routes in Warren County, New Jersey
# List of county routes in Warren County, New Jersey

The following is a list of county routes in Warren County in the U.S. state of New Jersey.

## 500-series county routes

In addition to those listed below, the following 500-series county routes serve Warren County:

* CR 517, CR 519, CR 521, CR 579

## Other county routes

| Route | Length (mi) | Length (km) | From | Via | To | Notes |
| - | - | - | - | - | - | - |
| CR 601 | 0.63 | 1.01 | CR 602 in Blairstown | High Street | CR 521 in Blairstown | |
| CR 602 | 5.99 | 9.64 | Route 94 in Blairstown | Millbrook Road | End of county maintenance in Hardwick Township | Signage continues to Old Mine Road, with the northernmost portion concurrent with NPS Route 602 |
| CR 604 | 5.46 | 8.79 | US 46 in Hackettstown | Willow Grove Street, Waterloo Road | CR 604 at Sussex County line in Allamuchy Township | |
| CR 605 | 4.34 | 6.98 | CR 616 in Knowlton Township | Valley Street, Delaware Road, Warrington Road | Route 94 in Knowlton Township | |
| CR 607 | 0.75 | 1.21 | CR 521 in Blairstown | Edge Hill Road | CR 616 in Blairstown | |
| CR 608 | 4.99 | 8.03 | CR 521 in Hope Township | Hope–Marlboro Road, Silver Lake Road | Route 94 in Frelinghuysen Township | |
| CR 609 | 5.50 | 8.85 | US 46 in Knowlton Township | Ramseyburg Road, Delaware Road, High Street | CR 519/521 in Hope Township | |
| CR 610 | 2.38 | 3.83 | CR 519 in Hope Township | Swayze Mill Road | CR 609 in Hope Township | |
| CR 611 | 4.77 | 7.68 | US 46 in Independence Township | Hope Road, Hope–Great Meadows Road | CR 519 in Hope Township | |
| CR 611M | 0.26 | 0.42 | CR 519 in Hope Township | Millbrook Road, Walnut Street | CR 521 in Hope Township | |
| CR 612 | 4.9 | 7.9 | CR 667 in Allamuchy Township | Johsonburg Road, Allamuchy Road | CR 519 in Frelinghuysen Township | |
| CR 613 | 6.87 | 11.06 | US 46 in Independence Township | Alphano Road | CR 612 in Allamuchy Township | |
| CR 614 | 3.85 | 6.20 | US 46 in Independence Township | Water Street, Petersburg Road | US 46 in Independence Township | |
| CR 615 | 2.07 | 3.33 | CR 613 in Allamuchy Township | Long Bridge Road | CR 612 in Allamuchy Township | |
| CR 616 | 9.62 | 15.48 | US 46 in Knowlton Township | Knowlton Road, Mount Hermon Road, Cedar Lake Road | Route 94 in Blairstown | |
| CR 617 | 2.12 | 3.41 | US 46 in White Township | Green Pond Road, Mountain Lake Road | Lakeside Drive South in Liberty Township | |
| CR 618 | 2.08 | 3.35 | US 46 in White Township | Sarepta Road | CR 519 in White Township | |
| CR 619 | 0.73 | 1.17 | US 46 in White Township | Titman Road | US 46 in White Township | |
| CR 620 | 3.37 | 5.42 | CR 519 in White Township | Greenwich Street, Water Street | US 46 in White Township | |
| CR 620 Spur | 0.34 | 0.55 | Pennsylvania line on Riverton-Belvidere Bridge in Belvidere | Water Street | CR 620 in Belvidere | |
| CR 621 | 9.14 | 14.71 | Memorial Parkway in Phillipsburg | North Main Street, River Road, Brainards Road | CR 519 in Harmony Township | |
| CR 621 Spur | 0.18 | 0.29 | CR 621 in Harmony Township | Broad Street | Railroad tracks in Harmony Township | |
| CR 622 | 3.03 | 4.88 | CR 519 in Harmony Township | Hutchinson Station Road, Hutchinson River Road, River Road, Roxburg Station Road | CR 519 in Harmony Township | |
| CR 623 | 6.53 | 10.51 | Route 57 in Washington Township | Brass Castle Road | Belvidere line in White Township | |
| CR 624 | 2.83 | 4.55 | CR 623 in White Township | Hazen Oxford Road, Belvidere Avenue, Wall Street | Route 31 in Oxford Township | |
| CR 625 | 7.35 | 11.83 | CR 623 in Washington Township | Jonestown Road, Academy Street, Axford Avenue, Pequest-Furnace Road | US 46 in White Township | |
| CR 626 | 3.15 | 5.07 | CR 519 in White Township | Lommason Glen Road, Summerfield Road | CR 623 in White Township | |
| CR 627 | 4.11 | 6.61 | CR 627 at Hunterdon County line in Pohatcong Township | Riegelsville-Warren Glen Road | CR 519 in Pohatcong Township | |
| CR 628 | 6.48 | 10.43 | CR 623 in Washington Township | Kinnaman Road, Jackson Valley Road, Karrville Road | CR 629 in Mansfield Township | |
| CR 629 | 6.66 | 10.72 | Route 57 in Mansfield Township | Port Murray Road, Main Street, Rockport Road | Hackettstown line in Mansfield Township | |
| CR 630 | 1.50 | 2.41 | Route 31 in Washington Township | Washburn Avenue | Route 57 in Washington Township | |
| CR 631 | 0.33 | 0.53 | CR 625 in Oxford Township | Washington Avenue | CR 624 in Oxford Township | |
| CR 632 | 11.89 | 19.14 | Route 173 in Greenwich Township | Asbury-Anderson Road, Bloomsbury Road | Route 57 in Mansfield Township | |
| CR 633 | 1.00 | 1.61 | End of county maintenance in Franklin Township | Edison Road | Route 57 in Franklin Township | |
| CR 634 | 0.66 | 1.06 | CR 632 in Washington Township | Franklin Road | Route 31 in Washington Township | |
| CR 635 | 2.32 | 3.73 | Carpentersville Road in Pohatcong Township | Snyders Road | CR 519 in Pohatcong Township | |
| CR 636 | 1.37 | 2.20 | CR 519 in Pohatcong Township | Municipal Dr. | CR 639 in Pohatcong Township | |
| CR 637 | 5.07 | 8.16 | CR 639 in Greenwich Township | Maple Drive, South Main Street, North Main Street, Liberty Road | CR 519 in Lopatcong Township | |
| CR 638 | 2.44 | 3.93 | US 22 in Greenwich Township | Greenwich Street, Washington Street | Richline Road in Greenwich Township | |
| CR 639 | 2.86 | 4.60 | CR 519 in Pohatcong Township | Warren Glen Road | Route 173 in Greenwich Township | |
| CR 640 | 1.04 | 1.67 | Route 31 in Washington Township | South Lincoln Avenue | Cemetery Hill Road in Washington Township | |
| CR 641 | 0.63 | 1.01 | CR 519 in Alpha | Springtown Road, Lee Avenue | CR 642 in Alpha | |
| CR 642 | 0.86 | 1.38 | Creek Road in Pohatcong Township | High Street | CR 519 in Alpha | |
| CR 643 | 3.87 | 6.23 | CR 643 at Hunterdon County line in Franklin Township | Main Street, Asbury-Broadway Road | Route 57 in Franklin Township | |
| CR 644 | 0.47 | 0.76 | Route 173 in Greenwich Township | Greenwich Church Road | Route 173 in Greenwich Township | |
| CR 645 | 1.94 | 3.12 | Changewater Road at Hunterdon County line in Washington Township | Changewater Road | CR 630 in Washington Township | |
| CR 646 | 3.88 | 6.24 | US 22 in Phillipsburg | Lincoln Road, Belvidere Road | CR 519 in Harmony Township | |
| CR 647 | 8.06 | 12.97 | CR 519 in Harmony Township | Harmony Brass Castle Road | CR 623 in Washington Township | |
| CR 648 | 1.90 | 3.06 | Route 57 in Washington Township | Little Philadelphia Road | CR 623 in Washington Township | |
| CR 649 | 1.62 | 2.61 | CR 628 in Washington Township | Plane Hill Road, Bowerstown Road, Mine Hill Road | CR 628 in Washington Township | |
| CR 650 | 1.57 | 2.53 | CR 628 in Mansfield Township | Tunnel Hill Road | Route 31 in Mansfield Township | |
| CR 651 | 1.28 | 2.06 | CR 632 in Washington Township | McCullough Road | Route 57 in Washington Township | |
| CR 652 | 2.43 | 3.91 | Route 57 in Mansfield Township | Watters Road, Thomas Road | CR 629 in Mansfield Township | |
| CR 653 | 0.37 | 0.60 | CR 517 in Allamuchy Township | Old Hackettstown Road | Bald Eagle Road in Allamuchy Township | |
| CR 654 | 0.31 | 0.50 | CR 517 in Hackettstown | Old Allamuchy Road | CR 517 in Independence Township | |
| CR 655 | 6.22 | 10.01 | CR 609 in Hope Township | Mt. Herman Road | Route 94 in Blairstown | |
| CR 656 | 0.58 | 0.93 | US 46 in Independence Township | Tannery Road | US 46 in Independence Township | |
| CR 657 | 0.63 | 1.01 | Decatur Street in Knowlton Township | Simpson Road | Hainesburg River Road in Knowlton Township | |
| CR 658 | 3.8 | 6.12 | CR 605 in Knowlton Township | Vail Road, Polkville Road | CR 655 in Blairstown | |
| CR 659 | 3.15 | 5.07 | CR 602 in Hardwick Township | Spring Valley Road | Route 94 in Frelinghuysen Township | |
| CR 660 | 0.31 | 0.50 | Route 94 in Blairstown | Academy Street | CR 602 in Blairstown | |
| CR 661 | 1.4 | 2.3 | CR 519 in Frelinghuysen Township | Ramsey Road | Route 94 in Frelinghuysen Township | |
| CR 665 | 0.87 | 1.40 | CR 517 in Independence Township | Bilby Road | CR 604 in Hackettstown | |
| CR 667 | 0.36 | 0.58 | CR 517 in Allamuchy Township | Old Hackettstown Road | CR 517 in Allamuchy Township | |
| CR 668 | 1.07 | 1.72 | CR 612 in Allamuchy Township | Cemetery Road | Maple Lane at Sussex County line in Allamuchy Township | |
| CR 669 | 1.24 | 2.00 | CR 612 in Allamuchy Township | Ervey Road | Quaker Road at Sussex County line in Allamuchy Township | |
| CR 671 | 0.62 | 1.00 | Route 94 in Blairstown | Cleveland Road | Route 94 in Blairstown | |
| CR 672 | 0.33 | 0.53 | Route 94 in Blairstown | Democracy Road | Route 94 in Blairstown | |
| CR 673 | 0.56 | 0.90 | Route 94 in Blairstown | Eisenhower Road | Route 94 in Blairstown | |
| CR 674 | 0.85 | 1.37 | Route 94 in Blairstown | Buchanan Road | Route 94 in Blairstown | |
| CR 675 | 0.24 | 0.39 | Route 94 in Blairstown | Adams Road | Route 94 in Blairstown | |
| CR 676 | 0.20 | 0.32 | Church Street in Knowlton Township | Columbia Street, Decatur Street, Green Street | Washington Street in Knowlton Township | |
| CR 677 | 0.25 | 0.40 | Raymond Street in Phillipsburg | Morris Street | US 22 in Phillipsburg | |
| CR 678 | 0.92 | 1.48 | Route 122/Pursel Street in Phillipsburg | South Main Street | Sitgreaves Street/South Main Street in Phillipsburg | |
| CR 679 | 2.94 | 4.73 | Lakeside Drive North in Liberty Township | Mountain Lake Road | CR 611 in Liberty Township | |
| CR 680 | 0.61 | 0.98 | Mount Pisgah Avenue in Oxford Township | Mount Pisgah Avenue | Dead end in White Township | |
| CR 681 | 1.43 | 2.30 | CR 519 in Frelinghuysen Township | Ackerson Road | CR 608 in Frelinghuysen Township | |
| CR 682 | 0.6 | 0.97 | CR 658 in Blairstown | West Crisman Road | Route 94 in Blairstown | |
| CR 683 | 1.1 | 1.77 | CR 614 in Independence Township | Ryan Road, Cat Swamp Road | Cat Swamp Road in Allamuchy Township | |
