In the 1937 renumbering of Monmouth County roads, numbers 1 through 5 were reserved for the longer, "cross-county" routes; those numbered 6 and above were to be more local in nature. County Route 1 was designated to run from the Mercer County line via Freehold and Eatontown to the Long Branch city limits. With the establishment of the 500 Series of county routes, CR 1 was superseded by CR 524 from the Mercer County line to Smithburg, and CR 537 from Smithburg to the Long Branch boundary.
The present CR 1 was formed when part of CR 3 was separated from the balance of CR 3 with the 1952 establishment of CR 527 as part of the 500 Series routes. Since the CR 1 designation was available, that portion of CR 3 between CR 527 and CR 571 was re-designated as County Route 1.[1]
In addition to those listed below, the following 500-series county routes serve Monmouth County:[2]
| Route | Length
(mi)[3] | Length
(km) | From | Via | To | Notes |
|---|
| {{sort|001| CR 1}} | 6.54|mi|km|2|disp=table|sortable=on}} | CR 571 in Millstone Township | Perrineville Road, Sweetmans Lane | CR 527/CR 527A in Millstone Township |
| {{sort|002| CR 2}} | 2.07|mi|km|2|disp=table|sortable=on}} | Oxford Way in Neptune City | Oxford Avenue, 6th Avenue, Brinley Avenue | Ocean Avenue (CR 18) in Bradley Beach |
| {{sort|003| CR 3}} | 13.21|mi|km|2|disp=table|sortable=on}} | Millhurst Road (CR 527) in Manalapan Township | Main Street, Tennent Road, Morganville Road, Lloyd Road | Route 35 in Keyport |
| {{sort|003A| CR 3A}} | 1.20|mi|km|2|disp=table|sortable=on}} | Baird Road in Millstone Township | Conover Road | Route 33 in Millstone Township | Decommissioned June 1, 1971[4] |
| {{sort|004-1| CR 4 (1)}} | 3.08|mi|km|2|disp=table|sortable=on}} | Route 79 in Marlboro Township | Vanderburg Road, Crine Road | CR 4 (2) in Colts Neck Township |
| {{sort|004-2| CR 4 (2)}} | 9.26|mi|km|2|disp=table|sortable=on}} | End of county maintenance in Colts Neck Township | Conover Road, South Street, South Holmdel Road, Holmdel Road, Keyport-Holmdel Road, Main Street, Broad Street | First Street (CR 6) in Keyport |
| {{sort|004A| CR 4A}} | 2.10|mi|km|2|disp=table|sortable=on}} | CR 520 in Marlboro Township | Conover Road | Route 79 in Marlboro Township | Decommissioned May 25, 1989[5] |
| {{sort|005| CR 5}} | 1.36|mi|km|2|disp=table|sortable=on}} | W. Sylvania Avenue (Route 35) in Neptune City | Steiner Avenue, Atkins Avenue | Neptune Township/Asbury Park border |
| {{sort|006-1| CR 6 (1)}} | 1.18|mi|km|2|disp=table|sortable=on}} | Route 35 in Aberdeen Township | Amboy Avenue, West Front Street, Front Street | CR 4 in Keyport |
| {{sort|006-2| CR 6 (2)}} | 0.36|mi|km|2|disp=table|sortable=on}} | CR 516 in Keyport | Broadway | CR 6 (1) in Keyport |
| {{sort|006-3| CR 6 (3)}} | 0.91|mi|km|2|disp=table|sortable=on}} | CR 6 (4) in Keyport | Stone Road | Route 36 in Union Beach |
| {{sort|006-4| CR 6 (4)}} | 1.11|mi|km|2|disp=table|sortable=on}} | CR 4 in Keyport | 1st Street, Broadway | CR 39 in Union Beach |
| {{sort|006A-1| CR 6A (1)}} | 1.43|mi|km|2|disp=table|sortable=on}} | Cliffwood Road at Middlesex County border in Aberdeen Township | Cliffwood Avenue | Route 35 in Aberdeen Township |
| {{sort|006A-2| CR 6A (2)}} | 1.61|mi|km|2|disp=table|sortable=on}} | CR 6A (section 1) in Matawan | Cross Road, Ravine Drive | Main Street (CR 516 Spur) in Matawan |
| {{sort|007-1| CR 7 (1)}} | 2.81|mi|km|2|disp=table|sortable=on}} | Route 35 in Holmdel Township | Palmer Avenue, Main Street, Church Street, Monroe Avenue | Route 36 in Hazlet Township |
| {{sort|007-2| CR 7 (2)}} | 0.61|mi|km|2|disp=table|sortable=on}} | CR 7 (1) in Keansburg | Port Monmouth Road | Atlantic Avenue in Keansburg |
| {{sort|008| CR 8}} | 4.22|mi|km|2|disp=table|sortable=on}} | Route 36 in Atlantic Highlands | 1st Avenue, Ocean Boulevard, Linden Avenue, Bay Avenue | Route 36 in Highlands |
| {{sort|008A| CR 8A}} | 3.55|mi|km|2|disp=table|sortable=on}} | Rumson Road (CR 520) in Rumson | Bingham Avenue, Oceanic Bridge Road, Locust Point Road, Locust Avenue, Valley Drive East | Route 36 in Atlantic Highlands |
| {{sort|008B| CR 8B}} | 1.02|mi|km|2|disp=table|sortable=on}} | Valley Drive (CR 8A) in Middletown Township | Navesink Avenue | Route 36 in Middletown Township |
| {{sort|009| CR 9}} | 5.27|mi|km|2|disp=table|sortable=on}} | Monmouth Beach - Long Branch border | Ocean Avenue | Sea Bright - Middletown Township border at Sandy Hook | Decommissioned October 17, 1972 and replaced with Route 36 |
| {{sort|010| CR 10}} | 5.21|mi|km|2|disp=table|sortable=on}} | Hubbard Avenue (CR 12) in Middletown Township | West Front Street, East Front Street, River Road, West River Road, East River Road | Ridge Road (CR 34) in Rumson |
| {{sort|011-1| CR 11 (1)}} | 0.47|mi|km|2|disp=table|sortable=on}} | CR 520 in Red Bank | Broad Street | Harding Road (CR 34) in Red Bank |
| {{sort|011-2| CR 11 (2)}} | 2.82|mi|km|2|disp=table|sortable=on}} | Port-Au-Peck Avenue in Oceanport | Oceanport Avenue, Branch Avenue | Madison Avenue in Little Silver |
| {{sort|011-3| CR 11 (3)}} | 1.09|mi|km|2|disp=table|sortable=on}} | Broadway (CR 547) in West Long Branch | Oceanport Avenue | Port-Au-Peck Avenue in Oceanport |
| {{sort|012| CR 12}} | 4.19|mi|km|2|disp=table|sortable=on}} | Red Hill Road (CR 52) in Middletown Township and Holmdel Township | Dwight Road, Nut Swamp Road, Hubbard Avenue | West Front Street (CR 10) in Middletown Township |
| {{sort|012A| CR 12A}} | 4.40|mi|km|2|disp=table|sortable=on}} | Hubbard Road (CR 12) in Middletown Township | Navesink River Road | Locust Point Road (CR 8A) in Middletown Township |
| {{sort|013| CR 13}} | 3.06|mi|km|2|disp=table|sortable=on}} | Route 35 in Shrewsbury | Shrewsbury Avenue, Rector Place | Route 35 in Red Bank |
| {{sort|013A| CR 13A}} | 3.76|mi|km|2|disp=table|sortable=on}} | Tinton Avenue (CR 537) in Tinton Falls | Sycamore Avenue | Branch Avenue (CR 11) in Little Silver |
| {{sort|013B-1| CR 13B (1)}} | 1.09|mi|km|2|disp=table|sortable=on}} | Branch Avenue (CR 11) in Little Silver | Willow Drive, Prospect Avenue | Rumson Road (CR 520) in Little Silver |
| {{sort|013B-2| CR 13B (2)}} | 0.28|mi|km|2|disp=table|sortable=on}} | Prospect Avenue (CR 13B (1) in Little Silver | Church Street | Rumson Road (CR 520) in Little Silver |
| {{sort|014| CR 14}} | 3.2|mi|km|2|disp=table|sortable=on}} | Green Grove Road in Ocean Township | West Park Avenue | CR 15 in Ocean Township |
| {{sort|015| CR 15}} | 5.19|mi|km|2|disp=table|sortable=on}} | Deal Lake Drive (Route 71) in Asbury Park | Main Street, Grassmere Avenue, Westra Street, Monmouth Road, Locust Avenue | Broadway (CR 547) in West Long Branch |
| {{sort|016| CR 16}} | 6.22|mi|km|2|disp=table|sortable=on}} | Naval Weapons Station Earle in Colts Neck Township | Asbury Avenue | Main Street (Route 71) in Asbury Park |
| {{sort|017-1| CR 17 (1)}} | 1.73|mi|km|2|disp=table|sortable=on}} | Route 33 in Neptune Township | Old Corlies Avenue | Route 33 in Neptune Township |
| {{sort|017-2| CR 17 (2)}} | 3.51|mi|km|2|disp=table|sortable=on}} | CR 17 (1) in Neptune Township | West Bangs Avenue | Neptune Township/Asbury Park border |
| {{sort|017-3| CR 17 (3)}} | 1.39|mi|km|2|disp=table|sortable=on}} | Brighton Avenue in Neptune City | West Sylvania Avenue | Route 35 in Neptune City |
| {{sort|017-4| CR 17 (4)}} | 0.38|mi|km|2|disp=table|sortable=on}} | South Riverside Drive in Neptune Township | East End Avenue | CR 17 (3) in Neptune City |
| {{sort|017-5| CR 17 (5)}} | 0.40|mi|km|2|disp=table|sortable=on}} | CR 17 (3) in Neptune City | Neptune Avenue | CR 2 in Neptune Township |
| {{sort|017-6| CR 17 (6)}} | 0.64|mi|km|2|disp=table|sortable=on}} | Route 71 in Avon-by-the-Sea | Sylvania Avenue | Ocean Avenue (CR 18) in Avon-by-the-Sea |
| {{sort|018-1| CR 18 (1)}} | 8.65|mi|km|2|disp=table|sortable=on}} | Main Street (CR 524) in Howell Township | Belmar Boulevard, 16th Avenue | CR 18 (3) in Belmar |
| {{sort|018-2| CR 18 (2)}} | 0.45|mi|km|2|disp=table|sortable=on}} | Route 34 in Wall Township | Megill Road | CR 18 (1) in Wall Township |
| {{sort|018-3| CR 18 (3)}} | 5.63|mi|km|2|disp=table|sortable=on}} | CR 49 in Spring Lake | Brown Avenue, Ocean Avenue, Lake Terrace Drive | Main Street (Route 71) in Bradley Beach |
| {{sort|020| CR 20}} | 3.08|mi|km|2|disp=table|sortable=on}} | Holly Hill Drive in Wall Township | Old Bridge Road, South Street, Broad Street, North Broad Street, 8th Avenue | 7th Avenue (Route 71) in Sea Girt |
| {{sort|021| CR 21}} | 8.08|mi|km|2|disp=table|sortable=on}} | Squankum-Yellowbrook Road (CR 524A) in Howell Township | Southard Avenue, Manassa Road, Old Tavern Road, Herbertsville Road, Allenwood Road, Squankum Road, Allenwood-Lakewood Road | Atlantic Avenue (CR 524) in Wall Township | Gap in route through a portion of Ocean County |
| {{sort|022| CR 22}} | 1.18|mi|km|2|disp=table|sortable=on}} | Main Street (CR 527) in Englishtown | Gordons Corner Road | Conmack Lane in Manalapan Township |
| {{sort|023| CR 23}} | 3.97|mi|km|2|disp=table|sortable=on}} | CR 638 at Ocean County border in Freehold Township | Jackson Mills Road | Elton-Adelphia Road (CR 524) in Freehold Township |
| {{sort|023A| CR 23A}} | 0.70|mi|km|2|disp=table|sortable=on}} | US 9 in Howell Township | Wyckoff Mills Road | CR 524 in Howell Township | Decommissioned November 21, 1967[6] |
| {{sort|024| CR 24}} | 0.62|mi|km|2|disp=table|sortable=on}} | Swan Lake Park in Freehold Township | Manalapan Avenue | West Main Street (CR 537) in Freehold Borough |
| {{sort|025-1| CR 25 (1)}} | 0.99|mi|km|2|disp=table|sortable=on}} | Route 71 in West Long Branch | Cedar Avenue | Ocean Avenue (CR 57) in Long Branch |
| {{sort|025-2| CR 25 (2)}} | 1.26|mi|km|2|disp=table|sortable=on}} | CR 25 (1) in Long Branch | Norwood Avenue | Broadway (CR 537) in Long Branch |
| {{sort|027-1| CR 27 (1)}} | 4.67|mi|km|2|disp=table|sortable=on}} | CR 537 in Upper Freehold Township | Holmes Mill Road, Burlington Path Road | Meirs Road in Upper Freehold Township |
| {{sort|027-2| CR 27 (2)}} | 1.53|mi|km|2|disp=table|sortable=on}} | CR 27 (1) in Upper Freehold Township | Arneytown-Hornerstown Road | CR 539 in Upper Freehold Township |
| {{sort|027-3| CR 27 (3)}} | 0.41|mi|km|2|disp=table|sortable=on}} | CR 27 (2) in Upper Freehold Township | Main Street | CR 537 in Upper Freehold Township |
| {{sort|028| CR 28}} | 0.79|mi|km|2|disp=table|sortable=on}} | Old York Road at Mercer County border in Upper Freehold Township | Old York Road | Allentown-Yardville Road (CR 524) in Allentown |
| {{sort|029| CR 29}} | 2.69|mi|km|2|disp=table|sortable=on}} | Monmouth Boulevard (CR 33) in Oceanport | Shrewsbury Avenue, Branchport Avenue, Atlantic Avenue | Ocean Avenue in Long Branch |
| {{sort|029A| CR 29A}} | 0.60|mi|km|2|disp=table|sortable=on}} | Port-au-Peck Avenue in Oceanport | Myrtle Avenue | Monmouth Boulevard (CR 33) in Oceanport |
| {{sort|030-1| CR 30 (1)}} | 1.25|mi|km|2|disp=table|sortable=on}} | Atlantic Avenue (CR 524) in Wall Township | West 18th Avenue | Route 34 in Wall Township |
| {{sort|030-2| CR 30 (2)}} | 4.60|mi|km|2|disp=table|sortable=on}} | Allenwood Road Wall Township | 18th Avenue, Main Street | 8th Avenue (Route 71) in Belmar |
| {{sort|031| CR 31}} | 0.88|mi|km|2|disp=table|sortable=on}} | Wickapecko Drive in Interlaken | Corlies Avenue | NJ Transit's North Jersey Coast Line crossing in Allenhurst | Decommissioned April 22, 2004[7] |
| {{sort|032| CR 32}} | 3.01|mi|km|2|disp=table|sortable=on}} | Route 35/36 in Eatontown | Wall Street | Norwood Avenue (CR 25) in Long Branch |
| {{sort|033| CR 33}} | 3.34|mi|km|2|disp=table|sortable=on}} | Rumson Road (CR 520) in Little Silver | Port-Au-Peck Avenue, Monmouth Boulevard, Seven Bridges Road | Atlantic Avenue (CR 29) in Long Branch |
| {{sort|034| CR 34}} | 4.54|mi|km|2|disp=table|sortable=on}} | Broad Street (CR 11) in Red Bank | Harding Road, Ridge Road, Avenue of Two Rivers | Rumson Road (CR 520) in Rumson |
| {{sort|035| CR 35}} | 1.80|mi|km|2|disp=table|sortable=on}} | West Main Street (CR 524) in Farmingdale | North Main Street, Colts Neck Road | Route 33 in Howell Township |
| {{sort|036| CR 36}} | 0.82|mi|km|2|disp=table|sortable=on}} | Route 36 in Middletown Township | Thompson Avenue, Ocean Avenue | Weehawken Avenue in Middletown Township |
| {{sort|037| CR 37}} | 1.10|mi|km|2|disp=table|sortable=on}} | CR 25 in Long Branch | Brighton Avenue | Ocean Avenue in Long Branch | Decommissioned May 14, 1987[8] |
| {{sort|038| CR 38}} | 3.54|mi|km|2|disp=table|sortable=on}} | Green Grove Road in Tinton Falls | Wayside Road, Shafto Road | Tinton Avenue (CR 537) in Tinton Falls |
| {{sort|039| CR 39}} | 2.20|mi|km|2|disp=table|sortable=on}} | Stone Road (CR 6) in Union Beach | Florence Avenue, Front Street, Union Avenue | Route 36 in Union Beach |
| {{sort|040| CR 40}} | 0.70|mi|km|2|disp=table|sortable=on}} | Route 35 in Ocean Township | Sunset Avenue | Wickapecko Drive in Ocean Township | Decommissioned April 22, 2004[7] |
| {{sort|040A| CR 40A}} | 2.11|mi|km|2|disp=table|sortable=on}} | Route 35 in Avon-by-the-Sea | Memorial Drive | Monroe Avenue in Asbury Park |
| {{sort|042| CR 42}} | 1.05|mi|km|2|disp=table|sortable=on}} | Route 35 in Keyport | Maple Place | Green Grove Avenue in Keyport | Decommissioned 1952 and replaced with CR 516 |
| {{sort|043| CR 43}} | 1.66|mi|km|2|disp=table|sortable=on}} | CR 526 in Upper Freehold Township | Imlaystown-Hightstown Road | CR 524 in Upper Freehold Township |
| {{sort|044| CR 44}} | 1.35|mi|km|2|disp=table|sortable=on}} | Branchport Avenue in Long Branch | Joline Avenue | Ocean Avenue in Long Branch | Decommissioned October 17, 1972 and replaced with Route 36 |
| {{sort|045| CR 45}} | 0.13|mi|km|2|disp=table|sortable=on}} | Gravelly Brook in Aberdeen Township | Church Street | Henry Hudson Trail in Aberdeen Township |
| {{sort|046| CR 46}} | 4.98|mi|km|2|disp=table|sortable=on}} | Broadway (Route 79) in Freehold Borough | Dutch Lane Road | Crine Road (CR 4) in Colts Neck Township |
| {{sort|047| CR 47}} | 1.01|mi|km|2|disp=table|sortable=on}} | Allaire Road (CR 524) in Wall Township | Warren Avenue | Route 71 in Spring Lake Heights |
| {{sort|048| CR 48}} | 1.67|mi|km|2|disp=table|sortable=on}} | Route 70 in Brielle | Riverview Drive | Higgins Avenue in Brielle |
| {{sort|049| CR 49}} | 1.54|mi|km|2|disp=table|sortable=on}} | 6th Avenue (CR 20) in Manasquan | Sea Girt Avenue, Washington Boulevard, The Crescent, 1st Avenue | Brown Avenue (CR 18) in Spring Lake |
| {{sort|050| CR 50}} | 8.19|mi|km|2|disp=table|sortable=on}} | Colts Neck Road (CR 537) in Tinton Falls | Swimming River Road, Middletown-Lincroft Road, Church Street, Kings Highway, New Monmouth Road | Cherry Tree Farm Road (CR 516) in Middletown Township |
| {{sort|051| CR 51}} | 4.45|mi|km|2|disp=table|sortable=on}} | Wyckoff Road (CR 547) in Tinton Falls | Hope Road, Hance Avenue | Newman Springs Road (CR 520) in Tinton Falls |
| {{sort|052| CR 52}} | 5.25|mi|km|2|disp=table|sortable=on}} | Newman Springs Road (CR 520) in Middletown Township | Crawfords Corner-Everett Road, Red Hill Road, Van Shoick Road, South Laurel Avenue | Route 35 in Holmdel Township |
| {{sort|053| CR 53}} | 1.03|mi|km|2|disp=table|sortable=on}} | Turkey Swamp Park entrance in Freehold Township | Georgia Road | Jackson Mills Road (CR 23) in Freehold Township |
| {{sort|054| CR 54}} | 3.82|mi|km|2|disp=table|sortable=on}} | Route 34 in Colts Neck Township | Phalanx Road | Swimming River Reservoir Bridge |
| {{sort|055| CR 55}} | 4.15|mi|km|2|disp=table|sortable=on}} | Willow Brook Road in Freehold Township | Halls Mill Road, Kozloski Road | Route 79 in Freehold Township[9] |
| {{sort|056| CR 56}} | 0.96|mi|km|2|disp=table|sortable=on}} | Church Street (CR 7) in Keansburg | Carr Avenue | Beachway Avenue in Keansburg |
| {{sort|057| CR 57}} | 2.21|mi|km|2|disp=table|sortable=on}} | Cedar Avenue (CR 25) in Long Branch | Ocean Avenue, Ocean Boulevard | Joline Avenue (Route 36) in Long Branch |
1. ^County Roads Straight Line Diagrams, Prepared by the Monmouth County Planning Board, April 10, 2006.
2. ^{{cite web|url=http://www.state.nj.us/transportation/refdata/sldiag/500%20Routes.pdf|title=500 Series Routes straight line diagram|publisher=New Jersey Department of Transportation|accessdate=May 23, 2012}}
3. ^{{cite web|url=http://www.state.nj.us/transportation/refdata/sldiag/Monmouth.pdf|title=Monmouth County straight line diagram|publisher=New Jersey Department of Transportation|accessdate=June 1, 2012}}
4. ^Resolution, Monmouth County Board of Chosen Freeholders, June 1, 1971
5. ^Resolution, Monmouth County Board of Chosen Freeholders, May 25, 1989.
6. ^Resolution, Monmouth County Board of Chosen Freeholders, November 21, 1967
7. ^1 Resolution No. 04-323, Monmouth County Board of Chosen Freeholders
8. ^Resolution, Monmouth County Board of Chosen Freeholders, May 14, 1987
9. ^{{cite web |url=http://co.monmouth.nj.us/documents/24%5CMC%20Road%20Plan%20Text%20Oct%2015%202012.pdf |title=Monmouth County Road Plan |date=October 15, 2012 |accessdate=July 4, 2016 |publisher=Monmouth County Planning Board}}