This page looks at the highway system by routes and Caltrans districts. The following statistics are on this page:
Modoc County: US 395, Route 299, and Route 139. | Yuba County: Route 20, Route 49, and Route 70 |
Del Norte County: US 101, Route 169, Route 197, and US 199. | Colusa County: I-5, Route 16, Route 20, and Route 45. | ||
Glenn County: I-5, Route 32, Route 45, and Route 162. | Sierra County: Route 49, I-80, Route 89, and US 395. | ||
Alpine County: Route 4, Route 88, Route 89, and Route 207. | Tuolumne County: Route 49, Route 108, Route 120, and Route 132. |
1. | 42 Routes: Los Angeles County | 4. | 19 Routes: Alameda County | ||
2. | 27 Routes: San Bernardino County | 5. | 18 Routes: Riverside County | ||
3. | 23 Routes: San Diego County | 18 Routes: Orange County |
1. | 17 Routes: Los Angeles County | 2. | 8 Routes: Alameda County | ||
17 Routes: San Diego County | 3. | 6 Routes: Mono County | |||
2. | 8 Routes: San Bernardino County | 3. | 6 Routes: Kern County |
Lassen County | Modoc County | Trinity County | |||
Colusa County | Glenn County | Yolo County | |||
Sierra County | San Francisco City and County | San Benito County | |||
Fresno County | Kings County | Merced County | |||
Sutter County | Mariposa County | Calaveras County |
The following traverse the most counties, when both traversable and unconstructed milage is considered:
1. | I-5: 16
counties. I-5 is the backbone of California, running from Mexico to the Oregon border. Counties traversed: San Diego, Orange, Los Angeles, Kern, Kings, San Benito, Merced, Sanislaus, San Joaquin, Sacramento, Yolo, Colusa, Glenn, Tehama, Shasta, and Siskiyou. #2 in total length. |
5. | Route 99:
10 counties. Route 99 is what is left of US 99, running from I-5 N of Los Angeles, through Bakersfield, Fresno, and Sacramento, to rejoin I-5 in northern California. Counties traversed: Kern, Tulare, Fresno, Madera, Mariposa, Stanislaus, San Joaquin, Sacramento, Sutter, and Butte. #5 in total length. |
2. | US 101: 14 counties. US 101 runs from downtown Los Angeles, through Ventura, Santa Barbara, San Luis Obispo, Monterey, San Jose, San Francisco, Marin, and Redwood Country. Counties traversed: Los Angeles, Ventura, Santa Barbara, San Luis Obispo, Monterey, San Benito, Santa Clara, San Mateo, San Francisco, Marin, Sonoma, Mendocino, Humboldt, Del Norte. #1 in total length. |
I-80: 10 counties. I-80 runs to the Nevada border from San Francisco, through Sacramento. Counties traversed: San Francisco, Alameda, Contra Costa, Napa, Solano, Yolo, Sacramento, Placer, Nevada, and Sierra. Not in the top 10 for total length. |
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3. | Route 1: 12
counties. Route 1 runs from southern Orange County to US 101 near Leggett, hugging the coast most of the way. Counties traversed: Orange, Los Angeles, Ventura, Santa Barbara, San Luis Obispo, Monterey, Santa Cruz, San Mateo, San Francisco, Marin, Sonoma, and Mendocino. #3 in total length. |
Route 49: 10
counties. Route 49 runs from Route 41 near Oakhurst to Route 70 near Vinton through the Sierra gold country. Counties traversed: Madera, Mariposa, Tuolumne, Calaveras, Amador, El Dorado, Placer, Nevada, Yuba, Sierra, and Plumas. #8 in total length. |
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4. | Route 65: 11
counties. Route 65 was a planned freeway E of Route 99 between Bakersfield and Route 99 near Yuba City. Counties traversed: Kern, Tulare, Fresno, Madera, Mariposa, Merced, Stanislaus, San Joaquin, Sacramento, Placer, and Sutter. #7 in total length. |
6. | Route 33: 9
counties. Route 33 runs from Ventura in various segments up to I-5 near Vernalis. Counties traversed: Ventura, Santa Barbara, San Luis Obispo, Kern, Kings, Fresno, Merced, Stanislaus, and San Joaquin.. #10 in total length. |
5. | Route 89: 10
counties. Route 89 runs from US 395 near Coleville to I-5 near Mt. Shasta. Counties traversed: Mono, Alpine, El Dorado, Placer, Nevada, Sierra, Plumas, Tehama, Shasta, and Siskiyou. Not in the top 10 for total length. |
7. | US 395: 7 counties. US 395 currently runs from north of San Bernardino to the Oregon border, with a break when it passes through Nevada. Counties traversed: San Bernardino, Kern, Inyo, Mono, Sierra, Lassen, and Modoc. #4 in total length. |
1. |
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95 Highways: District 4 (Alameda, Contra Costa, Marin, Napa, Santa Clara, San Francisco, San Mateo, Solano, and Sonoma counties) |
2. |
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67 Highways: District 3 (Butte, Colusa, El Dorado, Glenn, Nevada, Placer, Sacramento, Sierra, Yolo, and Yuba counties) |
3. |
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62 Highways: District 10 (Alpine, Amador, Calaveras, Merced, Maraposa, San Joaquin, Stanislaus, Sutter, and Tuolumne counties) |
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56 Highways: District 6 (Fresno, Kern, Kings, Madera, and Tulare counties) |
5. |
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53 Highways: District 7 (Los Angeles and Ventura counties) |
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18 Highways: District 12 (Orange county) |
2. |
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19 Highways: District 9 (Inyo and Mono counties) |
3. |
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29 Highways: District 1 (Del Norte, Humboldt, Lake, Mendocino counties) |
4. |
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31 Highways: District 11 (San Diego and Imperial counties) |
5. |
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41 Highways: District 2 (Lassen, Modoc, Plumas, Shasta, Siskiyou, Tehama, and Trinity counties) |
Statistics IV: Oh, The Traffic! Statistics Home: The Typical California Highway and Total Information
© 1996-2020 Daniel P.
Faigin.
Maintained by: Daniel P. Faigin <webmaster@cahighways.org>.