Checked
Trucking Companies in California
Active motor carriers whose principal place of business is in California.
- Active carriers
- 328,954
- Power units
- 767,868
- Trucks and tractors reported
- Drivers
- 911,529
- Interstate carriers
- 66,883
Carriers in California
Share of active carriers
- For hire (carry goods for others)272,71082.9%
- Private (carry their own goods)63,01819.2%
- Passenger carriers10,1043.1%
- Hazardous materials9,6672.9%
Fleet size (power units)
- None reported82,97425.2%
- 1178,65554.3%
- 2 to 550,10715.2%
- 6 to 108,5942.6%
- 11 to 507,2242.2%
- 51 to 1008630.3%
- More than 1005370.2%
Fleet and driver counts are self-reported by each company on FMCSA Form MCS-150 and can be out of date. Values that look like typing errors (for example 99,999 trucks for a small company) are treated as not reported. Pages list companies registered as businesses; owner-operators registered as individuals are counted in totals but not named.
Largest carriers in California
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By county
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| County | Carriers | Power units | Drivers |
|---|---|---|---|
| Los Angeles County | 92,398 | 196,484 | 234,664 |
| San Bernardino County | 26,599 | 55,258 | 64,190 |
| Riverside County | 21,280 | 43,096 | 51,735 |
| San Diego County | 19,481 | 46,068 | 56,940 |
| Orange County | 18,278 | 50,327 | 66,726 |
| Fresno County | 14,110 | 33,636 | 40,004 |
| Alameda County | 13,192 | 28,416 | 35,639 |
| Sacramento County | 12,553 | 30,946 | 37,113 |
| Kern County | 11,690 | 30,239 | 33,626 |
| San Joaquin County | 11,209 | 29,649 | 33,438 |
| Santa Clara County | 8,902 | 19,134 | 24,163 |
| Stanislaus County | 6,214 | 14,048 | 16,390 |
| Contra Costa County | 6,118 | 12,748 | 14,738 |
| Ventura County | 5,843 | 11,578 | 14,253 |
| Tulare County | 5,006 | 11,030 | 11,895 |
| Sonoma County | 4,235 | 10,184 | 11,487 |
| Merced County | 3,552 | 6,845 | 7,357 |
| San Mateo County | 3,474 | 9,812 | 15,860 |
| Santa Barbara County | 3,156 | 7,065 | 8,390 |
| Solano County | 3,150 | 8,335 | 9,649 |
| Monterey County | 2,882 | 8,259 | 8,334 |
| Placer County | 2,830 | 6,926 | 8,044 |
| San Francisco County | 2,369 | 12,558 | 15,066 |
| Sutter County | 2,287 | 7,113 | 7,295 |
| Shasta County | 2,259 | 4,232 | 5,237 |
| Madera County | 2,143 | 4,246 | 5,028 |
| San Luis Obispo County | 2,112 | 6,108 | 6,606 |
| Butte County | 1,849 | 3,653 | 4,323 |
| Yolo County | 1,805 | 16,539 | 15,162 |
| Imperial County | 1,635 | 6,056 | 6,154 |
| Santa Cruz County | 1,617 | 4,539 | 4,858 |
| Mendocino County | 1,316 | 2,339 | 2,811 |
| Humboldt County | 1,233 | 3,052 | 3,566 |
| Marin County | 1,198 | 2,467 | 3,434 |
| El Dorado County | 1,196 | 3,214 | 3,661 |
| Kings County | 1,167 | 2,863 | 3,044 |
| Napa County | 987 | 2,880 | 3,069 |
| Yuba County | 799 | 1,483 | 1,633 |
| Nevada County | 737 | 1,618 | 1,977 |
| Lake County | 696 | 1,192 | 1,463 |
| Tehama County | 662 | 2,004 | 2,185 |
| San Benito County | 571 | 1,056 | 1,146 |
| Glenn County | 524 | 1,011 | 1,100 |
| Siskiyou County | 484 | 1,063 | 1,109 |
| Tuolumne County | 470 | 981 | 1,118 |
| Colusa County | 465 | 1,263 | 1,240 |
| Calaveras County | 447 | 861 | 904 |
| Amador County | 403 | 698 | 701 |
| Lassen County | 218 | 418 | 502 |
| Plumas County | 200 | 457 | 485 |
| Trinity County | 180 | 296 | 335 |
| Inyo County | 139 | 352 | 339 |
| Modoc County | 120 | 271 | 302 |
| Mariposa County | 117 | 253 | 263 |
| Del Norte County | 89 | 264 | 258 |
| Mono County | 58 | 152 | 182 |
| Sierra County | 28 | 71 | 52 |
| Alpine County | 3 | 10 | 12 |
Frequently asked questions
- What is a USDOT number?
- The U.S. Department of Transportation number identifies a company that operates commercial vehicles hauling cargo or passengers in interstate commerce, and in many states for trips within the state too.
- What is a MC number?
- An MC (motor carrier) number is the operating authority FMCSA grants to for-hire carriers that move regulated goods or passengers across state lines. Private carriers hauling their own goods do not need one.
- What do the safety ratings mean?
- FMCSA rates a carrier Satisfactory, Conditional or Unsatisfactory after an on-site compliance review. Most carriers have never had a review and are unrated, which does not mean they are unsafe.
Source: Federal Motor Carrier Safety Administration, Company Census File · Last updated 10/22/2026