County routes in California

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County Routes in California
San Diego County S1.svg
Example of a California county route shield.
System information
NotesAll classes of state-numbered highways are generally state-maintained.
Highway names
InterstatesInterstate X (I-X) or Route X
US HighwaysU.S. Route X (US X) or Route X
StateState Route X (SR X) or Route X
System links
County routes in California

County routes in the U.S. state of California are controlled and maintained by the respective counties in which they are located. However, they are generally patrolled by the state's California Highway Patrol. They are typically major thoroughfares in rural areas, although many run through urban areas as well. Most are two-lane highways, and can accommodate high speeds and large volumes of traffic.

County routes are typically designated with a letter (A, B, D, E, G, J, N, R, or S, depending on the region of the state, with several counties split between two region prefixes) followed by a number (example: G2). Therefore, the county routes are sorted alphabetically, from the northernmost region of California to the southernmost region. Routes with letters (A, B, D) are in the region of Northern California, letters (E, G, J) are in Central California, and (N, R, S) are in Southern California. Routes in Lake and San Bernardino Counties are designated by numbers only.

The level of signage varies by county. In San Diego County, reassurance markers are placed as frequently as they would be on state highways. In other counties, some county routes are completely unsigned. For most county routes, signage may be found at the beginning and end and at major junctions; reassurance markers are rare and are placed at distant intervals. With a handful of exceptions (one example being S2), county routes are typically referred to by their street name (e.g. Angeles Forest Highway or Kanan Dume Road) rather than their route designation.

These routes are all part of the California Route Marker Program, which was established in 1958. This program was incorporated into the National Uniform County Route Marker Program created by the National Association of Counties in 1967. Not all counties choose to use the same marker; some have different systems of numbering their county routes.

List of California county routes[edit]

The county routes are alphabetically sorted by the prefix letter in its shield, followed by the corresponding number.

Number Counties South or west terminus North or east terminus Length (mi)[1] (km) Formed Deleted Notes
CR A1 Lassen SR 36 SR 139 35.30 56.48 1963, 1983
CR A2 Lassen SR 299 SR 139 11.41 18.26 1958
CR A3 Lassen Buntingville (US 395) Standish (US 395) 8.45 13.52 1958
CR A5 Tehama Rosewood (SR 36) Cottonwood (I-5) 14.27 22.83 1958
CR A6 Tehama Dales (Malton Road) Forward Road 15.60 24.96 1958
CR A7 Tehama Red Bluff (Live Oak Road) Red Bluff (SR 36) 4.96 7.94 1958
CR A8 Tehama Tehama (SR 99) Red Bluff (SR 36) 13.53 21.65 1967
CR A9 Tehama Paskenta (Round Valley Road) Corning (SR 99) 30.27 48.43 1967
CR A10 Siskiyou I-5 Mount Shasta 15.19 24.30 1959
CR A11 Tehama Tehama (I-5) Tehama (CR A8) 5.16 8.23 1967
CR A12 Siskiyou I-5 US 97 17.90 28.64 1959
CR A13 Plumas Hamilton Branch (SR 147) Hamilton Branch (SR 36) 3.79 6.06 1959
CR A14 Plumas SR 89 Johnsville 5.69 9.10 1959
CR A15 Plumas Portola (SR 89) Portola (SR 36) 8.35 9.95 1959
CR A16 Shasta SR 36 Redding (SR 273) 38.74 40.34 1960
CR A17 Shasta, Tehama I-5 SR 44 19.19 30.70 1963
CR A18 Shasta Redding (SR 273) Shasta Dam 8.83 14.13 1960
CR A19 Shasta SR 299 SR 89 17.40 27.84 1960
CR A20 Shasta SR 89 CR A19 5.56 8.90 1960
CR A21 Lassen, Plumas SR 147 SR 44 22.60 36.16 1963 This route was originally formed in 1933 as SR 183.
CR A22 Plumas SR 89 Nelson Street 4.54 7.26 1961
CR A23 Plumas, Sierra Sattley (SR 89) Beckwourth (SR 70) 12.81 20.50 1961
CR A24 Plumas, Sierra Loyalton (SR 49) SR 70 15.35 24.56 1961
CR A25 Lassen US 395 Pole Line Road 4.20 6.72 1966
CR A26 Lassen US 395 Herlong Access Road 3.82 6.11 1966
CR A27 Lassen Susanville (SR 36) US 395 15.02 24.03 1971
CR A28 Siskiyou Grenada (CR A21) Hornbrook (Copco Road)
CR B2 Butte Oroville (SR 70) SR 162 7.50 12.00 1964
CR C1 Sonoma US 101 SR 162 5.48 8.77 1975 Unsigned route
CR D1 Del Norte Crescent City (Pebble Beach Drive) Crescent City (US 101) 2.62 4.19 1966
CR D2 Del Norte Crescent City (US 101) Crescent City (Lake Earl Drive) 5.82 9.31 1966
CR D3 Del Norte Crescent City (US 101) Crescent City (US 101) 5.82 9.31 1966
CR D4 Del Norte US 101 US 101 3.43 5.49 1966
CR D5 Del Norte US 101 Near the Oregon state line (US 101) 5.73 9.17 1966
CR D6 Del Norte Indian Road US 101 0.31 0.50 1966
CR D7 Del Norte US 101 Klamath River (Klamath Road) 0.90 1.44 1966
CR D7 Del Norte Klamath River US 101 3.98 6.37 1966
CR E1 Alpine Grover Hot Springs State Park Markleeville (SR 89) 3.91 6.29 1962
CR E2 Placer, Sacramento Elk Grove (SR 99) Roseville (I-80) 28.89 46.49 1967
CR E3 Placer, Sacramento Rancho Cordova (US 50) Rocklin (I-80) 12.76 20.54 1967
CR E4 Yolo Esparto (SR 16) Dunnigan (I-5) 16.30 26.23 1968
CR E5 Tuolumne Jamestown (SR 49 / SR 108) Tuttletown (SR 49) 4.03 6.49 1974
CR E6 Yolo I-505 / SR 128 Davis (I-80) 15.93 25.64 1968
CR E7 Solano, Yolo I-80 Woodland (SR 16) 14.32 23.05 1968
CR E8 Yolo Davis (CR E6) SR 113 15.71 25.28 1968
CR E9 Sacramento, Yolo SR 160 SR 160 13.08 21.05 1968
CR E10 Yolo I-505 SR 113 9.86 15.87 1968
CR E11 Yolo SR 113 Tyndall Landing (SR 45) 5.19 8.35 1976
CR E12 Sacramento Elk Grove (CR J8) Elk Grove (CR E2) 6.83 10.99 1971
CR E13 Sacramento CR J11 Galt (SR 99 / SR 104) 14.79 23.80 1971
CR E14 Sacramento Sacramento (SR 99) Orangevale (CR E3) 17.62 28.36 1972
CR E15 Calaveras Yosemite Junction (SR 120) Copperopolis (SR 4) 12.91 20.78 1974
CR E16 Amador, El Dorado Plymouth (SR 49) Fresh Pond (US 50) 33.21 53.45 1967
CR E17 Tuolumne SR 108 Soulsbyville (SR 108) 13.39 21.55 1974 Unsigned route
CR E18 Calaveras, Tuolumne SR 49 Columbia (SR 4) 12.78 20.57 1974
CR E19 Yolo SR 84 Clarksburg (CR E9) 3.12 5.02 1976
CR E20 Yuba CR E21 Log Cabin (SR 49) 19.93 32.07 1977
CR E21 Butte, Plumas, Yuba Browns Valley (SR 20) La Porte (Warren Hill Road) 46.45 74.75 1977
CR G1 San Benito San Juan Bautista (SR 156) Fremont Peak State Park 5.42 8.72 1958
CR G2 Santa Clara Saratoga (SR 85) Sunnyvale (SR 237) Quito Road portion is unsigned
CR G3 Santa Clara Los Altos Hills (I-280) Palo Alto (US 101) 4.52 7.27 1962
CR G4 Santa Clara Campbell (SR 17) Milpitas (I-680) 14.11 22.70 1962, 1978 Montague Expressway portion is unsigned
CR G5 Santa Clara Los Altos (I-280) Palo Alto (CR G3) 7.24 11.65 1962
CR G6 Santa Clara Palo Alto (CR G3) San Jose (US 101) 12.33 19.84 1962
CR G7 Santa Clara SR 25 SR 152 3.25 5.23 1962
CR G8 Santa Clara Gilroy (SR 152) San Jose (SR 82) 29.38 47.28 1962
CR G9 Santa Clara Gilroy (US 101) SR 152 4.17 6.71 1963
CR G10 Santa Clara Los Gatos (SR 17) San Jose (SR 82) 10.34 16.64 1964
CR G11 Monterey CR G12 US 101 / SR 156 8.96 14.42 1965
CR G12 Monterey, Santa Cruz Prunedale (US 101 / SR 156) Watsonville (SR 129) 10.54 16.96 1965
CR G13 Monterey, San Benito
CR G14 Monterey, San Luis Obispo
CR G15 Monterey
CR G16 Monterey
CR G17 Monterey
CR G18 Monterey
CR G19 Monterey, San Luis Obispo
CR G20 Monterey
CR G21 Santa Clara CR G8 I-680 9.5 15.3
CR J1 Fresno, San Benito
CR J2 Alameda, San Joaquin SR4 Livermore (I-580) 39.6 63.4 1960 Route is part of De Anza National Historic Trail
CR J3 San Joaquin, Stanislaus SR132 Lodi (SR12) 35.3 56.5 1960
CR J4 Alameda, Contra Costa, San Joaquin CR J3 Discovery Bay (SR4) 27.9 44.6 1960 Route is part of De Anza National Historic Trail
CR J5 San Joaquin RIpon (SR99) CR J12 30.8 49.3 1960
CR J6 San Joaquin, Stanislaus SR108 SR26 22.3 35.7 1960
CR J7 Merced, San Joaquin, Stanislaus Merced (SR59) Stockton (SR99) 65.2 104.3 1960
CR J8 Sacramento, San Joaquin Stockton (SR99) Sacramento (SR99) 43.7 70 1960
CR J9 San Joaquin, Stanislaus CR J17 Stockton (I-5) 48.1 77 1960
CR J10 Sacramento, San Joaquin CR J8 Galt (SR 99) 17.6 28.2 1960
CR J11 Sacramento, San Joaquin
CR J12 San Joaquin
CR J13 San Joaquin
CR J14 Calaveras, Stanislaus
CR J15 Tulare
CR J16 Mariposa, Merced, Stanislaus
CR J17 Merced, Stanislaus
CR J18 Merced, Stanislaus
CR J19 Fresno, Tulare
CR J20 Mariposa, Tuolumne 1965 ? Renumbered CR J132[2]
CR J21 Tulare
CR J22 Tulare
CR J23 Tulare
CR J24 Tulare
CR J25 Tulare
CR J26 Tulare
CR J27 Tulare
CR J28 Tulare
CR J29 Tulare
CR J30 Tulare
CR J31 Tulare
CR J32 Tulare
CR J33 Tulare
CR J34 Tulare
CR J35 Tulare
CR J36 Tulare
CR J37 Tulare
CR J38 Tulare
CR J40 Fresno, Tulare
CR J41 Inyo, Tulare
CR J42 Tulare
CR J44 Kern, Tulare
CR J46 Tulare
CR J59 Merced, Stanislaus, Tuolumne
CR J132 Mariposa, Tuolumne Former CR J20[2]
CR N1 Los Angeles SR 1 US 101 1963
CR N2 Los Angeles
CR N3 Los Angeles
CR N4 Los Angeles
CR N5 Los Angeles
CR N6 Los Angeles
CR N7 Los Angeles
CR N8 Los Angeles, Orange
CR N9 Los Angeles
CR R2 Riverside
CR R3 Riverside
CR S1 San Diego
CR S2 Imperial, San Diego
CR S3 San Diego
CR S4 San Diego
CR S5 San Diego
CR S6 San Diego
CR S7 San Diego
CR S8 San Diego
CR S9 San Diego
CR S10 San Diego
CR S11 San Diego
CR S12 San Diego
CR S13 San Diego
CR S14 San Diego
CR S15 San Diego
CR S16 Riverside, San Diego Pala (SR 76) Temecula (SR 79) 1959
CR S17 San Diego
CR S18 Orange
CR S19 Orange
CR S20 Santa Barbara 1967 1988 Deleted
CR S21 San Diego
CR S22 Imperial, San Diego
CR S24 Imperial
CR S25 Orange
CR S26 Imperial
CR S27 Imperial
CR S28 Imperial
CR S29 Imperial
CR S30 Imperial
CR S31 Imperial
CR S32 Imperial
CR S34 Imperial
CR S78 Imperial Deleted and replaced by SR 78
CR S80 Imperial
CR 66 San Bernardino 1st Street in Oro Grande US 95 northwest of Needles 175.7 282.8 2011[3] This is the portion of the former U.S. Route 66 north of Victorville
CR 145 Lake
CR 502 Lake
CR 505 Lake
CR 515 Lake

See also[edit]


  1. ^ "Numbered County Highways". California Highways. Retrieved May 26, 2008.[self-published source]
  2. ^ a b "Go Coulterville, Town Tells Folks Yosemite-Bound". Modesto Bee. May 31, 1997. J132, in Mariposa county, formerly was known as J20.[full citation needed]
  3. ^ Garrett Metzger, Nikki (August 6, 2012). "Supervisor Mitzlefelt Unveils Route 66 Marker in Front of the Famous Emma Jean Café". High Desert Daily. Retrieved May 18, 2015.

External links[edit]