RANKING · 2010 CENSUS · 58 SHOWN OF 58

Most carpoolers, California counties · 2010

California counties ranked by the share of workers who carpool to work (2010 ACS). This list covers the 58 counties in California that qualify, ranked against each other statewide.

CaliforniaAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDMost remote workers Most public transit riders Most car-free households Longest commutes Shortest commutes Most car-dependent

YEAR2010 2024

RANKPLACESTATEPOPCARPOOLED TO WORKVS –

01Colusa County, CACA21,83618.4%–

02San Benito County, CACA70,08217.6%–

03Kern County, CACA927,06817.1%–

04Tulare County, CACA485,14617.0%–

05Madera County, CACA167,92716.2%–

06Kings County, CACA154,32716.0%–

07Sutter County, CACA98,78715.7%–

08Santa Barbara County, CACA442,06515.3%–

09San Joaquin County, CACA823,81515.2%–

10Monterey County, CACA433,72915.2%–

11Trinity County, CACA15,72015.2%–

12San Bernardino County, CACA2,224,09115.1%–

13Solano County, CACA455,37615.0%–

14Inyo County, CACA18,15814.9%–

15Riverside County, CACA2,544,91614.6%–

16Plumas County, CACA18,58314.6%–

17Alpine County, CACA1,04314.5%–

18Del Norte County, CACA26,41014.3%–

19Merced County, CACA297,26013.4%–

20Yuba County, CACA88,69113.2%–

21Siskiyou County, CACA42,01313.2%–

22Sacramento County, CACA1,618,46013.1%–

23Mariposa County, CACA16,91813.0%–

24Mono County, CACA12,50512.9%–

25Napa County, CACA132,94912.8%–

26Fresno County, CACA1,035,45612.6%–

27Glenn County, CACA28,14112.4%–

28Ventura County, CACA830,85112.4%–

29Sierra County, CACA3,09812.4%–

30Contra Costa County, CACA1,170,07012.0%–

31Modoc County, CACA8,42611.8%–

32Calaveras County, CACA46,60511.7%–

33Mendocino County, CACA88,12211.7%–

34Tehama County, CACA64,66511.6%–

35Lake County, CACA67,77211.5%–

36San Luis Obispo County, CACA282,36711.5%–

37Humboldt County, CACA131,64711.5%–

38Imperial County, CACA181,41111.5%–

39Santa Cruz County, CACA258,85211.4%–

40Los Angeles County, CACA9,694,93411.3%–

41Sonoma County, CACA486,44411.3%–

42Stanislaus County, CACA557,71911.2%–

43Tuolumne County, CACA53,16011.1%–

44El Dorado County, CACA192,32311.1%–

45San Mateo County, CACA743,56811.1%–

46Yolo County, CACA224,41010.9%–

47Butte County, CACA209,21110.8%–

48Orange County, CACA3,149,50710.7%–

49Shasta County, CACA181,64810.6%–

50San Diego County, CACA3,282,24810.6%–

51Alameda County, CACA1,636,63010.6%–

52Lassen County, CACA28,11710.4%–

53Santa Clara County, CACA1,914,39110.2%–

54Nevada County, CACA101,9119.9%–

55Placer County, CACA442,0819.6%–

56Marin County, CACA253,6949.5%–

57Amador County, CACA41,8768.1%–

58San Francisco County, CACA826,0797.9%–

SHOWING 1–58 OF 58

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS