Jeffrey Johnson is a legal writer with a focus on personal injury. He has worked on personal injury and sovereign immunity litigation in addition to experience in family, estate, and criminal law. He earned a J.D. from the University of Baltimore and has worked in legal offices and non-profits in Maryland, Texas, and North Carolina. He has also earned an MFA in screenwriting from Chapman Univer...

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Laura Walker graduated college with a BS in Criminal Justice with a minor in Political Science. She married her husband and began working in the family insurance business in 2005. She became a licensed agent and wrote P&C business focusing on personal lines insurance. Laura serviced existing business and wrote new business. She now uses her insurance background to help educate drivers about...

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Reviewed by Laura Walker
Licensed Agent for 10 Years

UPDATED: Jul 1, 2019

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When you need car insurance in California the first question you probably will ask is who are the best California car insurance companies?

There is no easy way to define this as every driver has unique needs. Some need car insurance for young drivers while others want cheap car insurance and some more are looking for collector car insurance.

However, there are certain measurements you can use to at least find a starting point for your auto insurance comparison search and market share is certainly one of them.

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Why is market share important?

Bigger doesn’t necessarily mean better but since car insurance is both a renewable purchase and coverage is fairly similar by most providers it is a good indication of how many customers are happy with a certain auto insurance company.

After all, if a car insurance company has 10 percent market share than they certainly have 5 percent there probably is a reason for such mass exodus.

Auto insurance providers who maintain or grow market share have a pretty good chance of keeping customers happy.

How many car insurance companies are licensed in California?

A lot. California has over 150 licensed auto insurance providers and almost any brand name you can think of has some kind of footprint in the state.

What California Car Insurance Companies have the greatest market share?

According to the CA Department of Insurance (in no particular order) the car insurance companies with the largest market share in California are:

  • 21st Century Insurance
  • AAA
  • Allstate
  • CSAA
  • Farmers Insurance Exchange
  • Infinity Insurance Company
  • Mercury Insurance Company
  • Mid-Century Insurance
  • Progressive
  • State Farm

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Are these the best California Car Insurance Companies?

Understanding who the top auto insurance providers are in California is just the beginning of your car insurance comparison search.

Knowing that a large number of drivers trust a particular provider is nice but you have to really be honest and make a list of what’s important to you.

For example, do you need?

  • Collector Car Insurance
  • Low Mileage Policy
  • Pay as you Go coverage
  • SR22 Requirement
  • Multiple Policies
  • Car Insurance for a Young Driver

Then there are also the intangible factors like how important is 24/7 customer service, online bill payment, payment by a particular type of credit card and so forth.

Drivers every day choose a car insurance company assuming they are all the same but it’s these little differences which can make your experience pleasurable or frustrating.

How do I compare car insurance quotes in California?

Thankfully the days of the yellow page are almost over and most auto insurance providers have an online presence where you can request a quote, learn about coverage and find an agent.

Simply enter your zip code above to find California auto insurance companies in your area today.

Related posts:

  1. How much are average California auto insurance rates?
  2. California Auto Insurance Requirements
  3. 2010 – Who are the top 10 Auto Insurance Companies by Market Share?
  4. Who are the top 10 California auto insurance companies?
  5. How much does auto insurance cost in California?