{
 "state": "California",
 "slug": "california",
 "years": [
  2015,
  2016,
  2017,
  2018,
  2019,
  2020,
  2021,
  2022,
  2023,
  2024,
  2025
 ],
 "publisher": "California Department of Insurance, Rate Specialist Bureau",
 "report_series": "California Property & Casualty Market Share Report (one report per calendar year)",
 "series_page": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/",
 "basis": "Direct written premium, licensed insurers, by NAIC group code as used by CDI in each year's report",
 "tracked_groups_note": "series = the 2025 top 10 groups per line, followed back by group code",
 "by_year": [
  {
   "year": 2015,
   "source_page": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2015/",
   "source_files": {
    "xlsx": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2015/upload/MktShrDataPC2015WA.xlsx",
    "top25": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2015/upload/Top25grps2015wa.pdf",
    "dist": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2015/upload/PrmLssDist2015wa.pdf"
   },
   "retrieved": "2026-10-13",
   "checks": [
    "Line 35 total = PrmLssDist PDF (64,685,005,797)",
    "Top 25 groups, Line 35 = Top25grps PDF (group code, premium to the dollar, share to 0.0001 pp)",
    "PPA total vs sheet 'PPA By Group Written Premium' header 23,250,974,866: difference 1,002 USD; top 10 match the sheet",
    "Line 04 total = PrmLssDist PDF (7,409,994,305)"
   ],
   "lines": {
    "all": {
     "label": "All property & casualty lines (Line 35, total)",
     "market_total": 64685005797,
     "groups_count": 243,
     "top10_share_pct": 49.55,
     "top10": [
      {
       "rank": 1,
       "group_code": 176,
       "source_name": "STATE FARM GRP",
       "name": "State Farm Group",
       "premium": 5623335712,
       "share_pct": 8.69
      },
      {
       "rank": 2,
       "group_code": 69,
       "source_name": "FARMERS INS GRP",
       "name": "Farmers Insurance Group",
       "premium": 5554068224,
       "share_pct": 8.59
      },
      {
       "rank": 3,
       "group_code": 31,
       "source_name": "BERKSHIRE HATHAWAY GRP",
       "name": "Berkshire Hathaway Group",
       "premium": 3407871624,
       "share_pct": 5.27
      },
      {
       "rank": 4,
       "group_code": 111,
       "source_name": "LIBERTY MUT GRP",
       "name": "Liberty Mutual Group",
       "premium": 3008572610,
       "share_pct": 4.65
      },
      {
       "rank": 5,
       "group_code": 8,
       "source_name": "ALLSTATE INS GRP",
       "name": "Allstate Insurance Group",
       "premium": 2816502168,
       "share_pct": 4.35
      },
      {
       "rank": 6,
       "group_code": 3548,
       "source_name": "Travelers Grp",
       "name": "Travelers Group",
       "premium": 2432746936,
       "share_pct": 3.76
      },
      {
       "rank": 7,
       "group_code": 660,
       "source_name": "MERCURY GEN GRP",
       "name": "Mercury General Group",
       "premium": 2429789160,
       "share_pct": 3.76
      },
      {
       "rank": 8,
       "group_code": 1318,
       "source_name": "Auto Club Enterprises Ins Grp",
       "name": "Auto Club Enterprises Insurance Group",
       "premium": 2364836253,
       "share_pct": 3.66
      },
      {
       "rank": 9,
       "group_code": 626,
       "source_name": "Chubb Ltd Grp",
       "name": "Chubb Limited Group",
       "premium": 2283634958,
       "share_pct": 3.53
      },
      {
       "rank": 10,
       "group_code": 1278,
       "source_name": "CSAA Ins Grp",
       "name": "CSAA Insurance Group",
       "premium": 2130090359,
       "share_pct": 3.29
      }
     ]
    },
    "personal-auto": {
     "label": "Private passenger auto (Lines 19.2 + 21.1)",
     "market_total": 23250975868,
     "groups_count": 97,
     "top10_share_pct": 78.47,
     "top10": [
      {
       "rank": 1,
       "group_code": 176,
       "source_name": "STATE FARM GRP",
       "name": "State Farm Group",
       "premium": 3358927702,
       "share_pct": 14.45
      },
      {
       "rank": 2,
       "group_code": 69,
       "source_name": "FARMERS INS GRP",
       "name": "Farmers Insurance Group",
       "premium": 2894320748,
       "share_pct": 12.45
      },
      {
       "rank": 3,
       "group_code": 8,
       "source_name": "ALLSTATE INS GRP",
       "name": "Allstate Insurance Group",
       "premium": 2032964772,
       "share_pct": 8.74
      },
      {
       "rank": 4,
       "group_code": 660,
       "source_name": "MERCURY GEN GRP",
       "name": "Mercury General Group",
       "premium": 1923392702,
       "share_pct": 8.27
      },
      {
       "rank": 5,
       "group_code": 1318,
       "source_name": "Auto Club Enterprises Ins Grp",
       "name": "Auto Club Enterprises Insurance Group",
       "premium": 1885077281,
       "share_pct": 8.11
      },
      {
       "rank": 6,
       "group_code": 31,
       "source_name": "BERKSHIRE HATHAWAY GRP",
       "name": "Berkshire Hathaway Group",
       "premium": 1814502798,
       "share_pct": 7.8
      },
      {
       "rank": 7,
       "group_code": 1278,
       "source_name": "CSAA Ins Grp",
       "name": "CSAA Insurance Group",
       "premium": 1530185939,
       "share_pct": 6.58
      },
      {
       "rank": 8,
       "group_code": 200,
       "source_name": "UNITED SERV AUTOMOBILE ASSN GRP",
       "name": "USAA Group",
       "premium": 1044933990,
       "share_pct": 4.49
      },
      {
       "rank": 9,
       "group_code": 155,
       "source_name": "PROGRESSIVE GRP",
       "name": "Progressive Group",
       "premium": 968690400,
       "share_pct": 4.17
      },
      {
       "rank": 10,
       "group_code": 111,
       "source_name": "LIBERTY MUT GRP",
       "name": "Liberty Mutual Group",
       "premium": 791250715,
       "share_pct": 3.4
      }
     ]
    },
    "homeowners": {
     "label": "Homeowners multiple peril (Line 4)",
     "market_total": 7409994305,
     "groups_count": 59,
     "top10_share_pct": 77.89,
     "top10": [
      {
       "rank": 1,
       "group_code": 176,
       "source_name": "STATE FARM GRP",
       "name": "State Farm Group",
       "premium": 1472081459,
       "share_pct": 19.87
      },
      {
       "rank": 2,
       "group_code": 69,
       "source_name": "FARMERS INS GRP",
       "name": "Farmers Insurance Group",
       "premium": 1199449613,
       "share_pct": 16.19
      },
      {
       "rank": 3,
       "group_code": 8,
       "source_name": "ALLSTATE INS GRP",
       "name": "Allstate Insurance Group",
       "premium": 558754697,
       "share_pct": 7.54
      },
      {
       "rank": 4,
       "group_code": 1278,
       "source_name": "CSAA Ins Grp",
       "name": "CSAA Insurance Group",
       "premium": 496159691,
       "share_pct": 6.7
      },
      {
       "rank": 5,
       "group_code": 1318,
       "source_name": "Auto Club Enterprises Ins Grp",
       "name": "Auto Club Enterprises Insurance Group",
       "premium": 440100444,
       "share_pct": 5.94
      },
      {
       "rank": 6,
       "group_code": 111,
       "source_name": "LIBERTY MUT GRP",
       "name": "Liberty Mutual Group",
       "premium": 430886370,
       "share_pct": 5.81
      },
      {
       "rank": 7,
       "group_code": 200,
       "source_name": "UNITED SERV AUTOMOBILE ASSN GRP",
       "name": "USAA Group",
       "premium": 340599313,
       "share_pct": 4.6
      },
      {
       "rank": 8,
       "group_code": 660,
       "source_name": "MERCURY GEN GRP",
       "name": "Mercury General Group",
       "premium": 316557712,
       "share_pct": 4.27
      },
      {
       "rank": 9,
       "group_code": 140,
       "source_name": "NATIONWIDE CORP GRP",
       "name": "Nationwide Corporation Group",
       "premium": 293638477,
       "share_pct": 3.96
      },
      {
       "rank": 10,
       "group_code": 3548,
       "source_name": "Travelers Grp",
       "name": "Travelers Group",
       "premium": 223571516,
       "share_pct": 3.02
      }
     ]
    }
   }
  },
  {
   "year": 2016,
   "source_page": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2016/",
   "source_files": {
    "xlsx": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2016/upload/MktShrDataPC2016WA.xlsx",
    "top25": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2016/upload/Top25grps2016wa.pdf",
    "dist": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2016/upload/PrmLssDist2016wa.pdf"
   },
   "retrieved": "2026-10-13",
   "checks": [
    "Line 35 total = PrmLssDist PDF (68,133,586,567)",
    "Top 25 groups, Line 35 = Top25grps PDF (group code, premium to the dollar, share to 0.0001 pp)",
    "PPA total vs sheet 'PPA By Group Written Premium' header 25,256,353,945: difference 700 USD; top 10 match the sheet",
    "Line 04 total = PrmLssDist PDF (7,645,677,515)"
   ],
   "lines": {
    "all": {
     "label": "All property & casualty lines (Line 35, total)",
     "market_total": 68133586567,
     "groups_count": 241,
     "top10_share_pct": 50.1,
     "top10": [
      {
       "rank": 1,
       "group_code": 176,
       "source_name": "STATE FARM GRP",
       "name": "State Farm Group",
       "premium": 5974366837,
       "share_pct": 8.77
      },
      {
       "rank": 2,
       "group_code": 69,
       "source_name": "FARMERS INS GRP",
       "name": "Farmers Insurance Group",
       "premium": 5795182205,
       "share_pct": 8.51
      },
      {
       "rank": 3,
       "group_code": 31,
       "source_name": "BERKSHIRE HATHAWAY GRP",
       "name": "Berkshire Hathaway Group",
       "premium": 3803455244,
       "share_pct": 5.58
      },
      {
       "rank": 4,
       "group_code": 111,
       "source_name": "LIBERTY MUT GRP",
       "name": "Liberty Mutual Group",
       "premium": 3181496492,
       "share_pct": 4.67
      },
      {
       "rank": 5,
       "group_code": 8,
       "source_name": "ALLSTATE INS GRP",
       "name": "Allstate Insurance Group",
       "premium": 2896550705,
       "share_pct": 4.25
      },
      {
       "rank": 6,
       "group_code": 660,
       "source_name": "MERCURY GEN GRP",
       "name": "Mercury General Group",
       "premium": 2593729885,
       "share_pct": 3.81
      },
      {
       "rank": 7,
       "group_code": 1318,
       "source_name": "Auto Club Enterprises Ins Grp",
       "name": "Auto Club Enterprises Insurance Group",
       "premium": 2566943279,
       "share_pct": 3.77
      },
      {
       "rank": 8,
       "group_code": 626,
       "source_name": "Chubb Ltd Grp",
       "name": "Chubb Limited Group",
       "premium": 2510598723,
       "share_pct": 3.68
      },
      {
       "rank": 9,
       "group_code": 3548,
       "source_name": "Travelers Grp",
       "name": "Travelers Group",
       "premium": 2500163102,
       "share_pct": 3.67
      },
      {
       "rank": 10,
       "group_code": 1278,
       "source_name": "CSAA Ins Grp",
       "name": "CSAA Insurance Group",
       "premium": 2311041458,
       "share_pct": 3.39
      }
     ]
    },
    "personal-auto": {
     "label": "Private passenger auto (Lines 19.2 + 21.1)",
     "market_total": 25256354645,
     "groups_count": 95,
     "top10_share_pct": 78.25,
     "top10": [
      {
       "rank": 1,
       "group_code": 176,
       "source_name": "STATE FARM GRP",
       "name": "State Farm Group",
       "premium": 3655462697,
       "share_pct": 14.47
      },
      {
       "rank": 2,
       "group_code": 69,
       "source_name": "FARMERS INS GRP",
       "name": "Farmers Insurance Group",
       "premium": 3051680853,
       "share_pct": 12.08
      },
      {
       "rank": 3,
       "group_code": 8,
       "source_name": "ALLSTATE INS GRP",
       "name": "Allstate Insurance Group",
       "premium": 2204488919,
       "share_pct": 8.73
      },
      {
       "rank": 4,
       "group_code": 31,
       "source_name": "BERKSHIRE HATHAWAY GRP",
       "name": "Berkshire Hathaway Group",
       "premium": 2091749187,
       "share_pct": 8.28
      },
      {
       "rank": 5,
       "group_code": 1318,
       "source_name": "Auto Club Enterprises Ins Grp",
       "name": "Auto Club Enterprises Insurance Group",
       "premium": 2042122544,
       "share_pct": 8.09
      },
      {
       "rank": 6,
       "group_code": 660,
       "source_name": "MERCURY GEN GRP",
       "name": "Mercury General Group",
       "premium": 2035970500,
       "share_pct": 8.06
      },
      {
       "rank": 7,
       "group_code": 1278,
       "source_name": "CSAA Ins Grp",
       "name": "CSAA Insurance Group",
       "premium": 1691525033,
       "share_pct": 6.7
      },
      {
       "rank": 8,
       "group_code": 200,
       "source_name": "UNITED SERV AUTOMOBILE ASSN GRP",
       "name": "USAA Group",
       "premium": 1127170019,
       "share_pct": 4.46
      },
      {
       "rank": 9,
       "group_code": 155,
       "source_name": "PROGRESSIVE GRP",
       "name": "Progressive Group",
       "premium": 1017899742,
       "share_pct": 4.03
      },
      {
       "rank": 10,
       "group_code": 111,
       "source_name": "LIBERTY MUT GRP",
       "name": "Liberty Mutual Group",
       "premium": 844804933,
       "share_pct": 3.34
      }
     ]
    },
    "homeowners": {
     "label": "Homeowners multiple peril (Line 4)",
     "market_total": 7645677515,
     "groups_count": 59,
     "top10_share_pct": 77.88,
     "top10": [
      {
       "rank": 1,
       "group_code": 176,
       "source_name": "STATE FARM GRP",
       "name": "State Farm Group",
       "premium": 1504930452,
       "share_pct": 19.68
      },
      {
       "rank": 2,
       "group_code": 69,
       "source_name": "FARMERS INS GRP",
       "name": "Farmers Insurance Group",
       "premium": 1246135044,
       "share_pct": 16.3
      },
      {
       "rank": 3,
       "group_code": 1278,
       "source_name": "CSAA Ins Grp",
       "name": "CSAA Insurance Group",
       "premium": 514100769,
       "share_pct": 6.72
      },
      {
       "rank": 4,
       "group_code": 8,
       "source_name": "ALLSTATE INS GRP",
       "name": "Allstate Insurance Group",
       "premium": 484641083,
       "share_pct": 6.34
      },
      {
       "rank": 5,
       "group_code": 1318,
       "source_name": "Auto Club Enterprises Ins Grp",
       "name": "Auto Club Enterprises Insurance Group",
       "premium": 483981946,
       "share_pct": 6.33
      },
      {
       "rank": 6,
       "group_code": 111,
       "source_name": "LIBERTY MUT GRP",
       "name": "Liberty Mutual Group",
       "premium": 453299757,
       "share_pct": 5.93
      },
      {
       "rank": 7,
       "group_code": 200,
       "source_name": "UNITED SERV AUTOMOBILE ASSN GRP",
       "name": "USAA Group",
       "premium": 359417688,
       "share_pct": 4.7
      },
      {
       "rank": 8,
       "group_code": 660,
       "source_name": "MERCURY GEN GRP",
       "name": "Mercury General Group",
       "premium": 353900102,
       "share_pct": 4.63
      },
      {
       "rank": 9,
       "group_code": 140,
       "source_name": "NATIONWIDE CORP GRP",
       "name": "Nationwide Corporation Group",
       "premium": 315395690,
       "share_pct": 4.13
      },
      {
       "rank": 10,
       "group_code": 3548,
       "source_name": "Travelers Grp",
       "name": "Travelers Group",
       "premium": 238480913,
       "share_pct": 3.12
      }
     ]
    }
   }
  },
  {
   "year": 2017,
   "source_page": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2017/",
   "source_files": {
    "xlsx": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2017/upload/MktShrDataPC2017WA.xlsx",
    "top25": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2017/upload/Top25grps2017wa.pdf",
    "dist": "https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/2017/upload/PrmLssDist2017wa.pdf"
   },
   "retrieved": "2026-10-13",
   "checks": [
    "Line 35 total = PrmLssDist PDF (71,053,858,335)",
    "Top 25 groups, Line 35 = Top25grps PDF (group code, premium to the dollar, share to 0.0001 pp)",
    "PPA total vs sheet 'PPA By Group Written Premium' header 27,260,588,575: difference 0 USD; top 10 match the sheet",
    "Line 04 total = PrmLssDist PDF (7,761,932,830)"
   ],
   "lines": {
    "all": {
     "label": "All property & casualty lines (Line 35, total)",
     "market_total": 71053858335,
     "groups_count": 239,
     "top10_share_pct": 50.88,
     "top10": [
      {
       "rank": 1,
       "group_code": 176,
       "source_name": "STATE FARM GRP",
       "name": "State Farm Group",
       "premium": 6110875916,
       "share_pct": 8.6
      },
      {
       "rank": 2,
       "group_code": 69,
       "source_name": "FARMERS INS GRP",
       "name": "Farmers Insurance Group",
       "premium": 5901437822,
       "share_pct": 8.31
      },
      {
       "rank": 3,
       "group_code": 31,
       "source_name": "BERKSHIRE HATHAWAY GRP",
       "name": "Berkshire Hathaway Group",
       "premium": 4291149385,
       "share_pct": 6.04
      },
      {
       "rank": 4,
       "group_code": 111,
       "source_name": "LIBERTY MUT GRP",
       "name": "Liberty Mutual Group",
       "premium": 3375933204,
       "share_pct": 4.75
      },
      {
       "rank": 5,
       "group_code": 8,
       "source_name": "ALLSTATE INS GRP",
       "name": "Allstate Insurance Group",
       "premium": 3128572164,
       "share_pct": 4.4
      },
      {
       "rank": 6,
       "group_code": 1318,
       "source_name": "Auto Club Enterprises Ins Grp",
       "name": "Auto Club Enterprises Insurance Group",
       "premium": 2852536327,
       "share_pct": 4.01
      },
      {
       "rank": 7,
       "group_code": 660,
       "source_name": "MERCURY GEN GRP",
       "name": "Mercury General Group",
       "premium": 2708254369,
       "share_pct": 3.81
      },
      {
       "rank": 8,
       "group_code": 3548,
       "source_name": "Travelers Grp",
       "name": "Travelers Group",
       "premium": 2630401521,
       "share_pct": 3.7
      },
      {
       "rank": 9,
       "group_code": 626,
       "source_name": "Chubb Ltd Grp",
       "name": "Chubb Limited Group",
       "premium": 2580574821,
       "share_pct": 3.63
      },
      {
       "rank": 10,
       "group_code": 1278,
       "source_name": "CSAA Ins Grp",
       "name": "CSAA Insurance Group",
       "premium": 2575697111,
       "share_pct": 3.62
      }
     ]
    },
    "personal-auto": {
     "label": "Private passenger auto (Lines 19.2 + 21.1)",
     "market_total": 27260588575,
     "groups_count": 91,
     "top10_share_pct": 79.5,
     "top10": [
      {
       "rank": 1,
       "group_code": 176,
       "source_name": "STATE FARM GRP",
       "name": "State Farm Group",
       "premium": 3910351419,
       "share_pct": 14.34
      },
      {
       "rank": 2,
       "group_code": 69,
       "source_name": "FARMERS INS GRP",
       "name": "Farmers Insurance Group",
       "premium": 3158814339,
       "share_pct": 11.59
      },
      {
       "rank": 3,
       "group_code": 31,
       "source_name": "BERKSHIRE HATHAWAY GRP",
       "name": "Berkshire Hathaway Group",
       "premium": 2502854700,
       "share_pct": 9.18
      },
      {
       "rank": 4,
       "group_code": 8,
       "source_name": "ALLSTATE INS GRP",
       "name": "Allstate Insurance Group",
       "premium": 2446613276,
       "share_pct": 8.97
      },
      {
       "rank": 5,
       "group_code": 1318,
       "source_name": "Auto Club Enterprises Ins Grp",
       "name": "Auto Club Enterprises Insurance Group",
       "premium": 2312229557,
       "share_pct": 8.48
      },
      {
       "rank": 6,
       "group_code": 660,
       "source_name": "MERCURY GEN GRP",
       "name": "Mercury General Group",
       "premium": 2095530869,
       "share_pct": 7.69
      },
      {
       "rank": 7,
       "group_code": 1278,
       "source_name": "CSAA Ins Grp",
       "name": "CSAA Insurance Group",
       "premium": 1950257231,
       "share_pct": 7.15
      },
      {
       "rank": 8,
       "group_code": 200,
       "source_name": "UNITED SERV AUTOMOBILE ASSN GRP",
       "name": "USAA Group",
       "premium": 1218792300,
       "share_pct": 4.47
      },
      {
       "rank": 9,
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 },
 "compiled_by": "Lapidar (https://getlapidar.com/data/pc-carriers-by-state/california/trends/)"
}
