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: Sep 4, 2019

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There are plenty of auto insurance companies around and when shopping for auto insurance its natural to wonder who is ranked #1.

However there are many different forms of rankings including financial ratings, market share, customer service ratings, best policy coverage, most affordable rates and more.

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Most drivers typically want to know who the cheapest auto insurance company is, who has the largest market share and who has the best customer service. However these answers will depend on a number of factors and may even change depending on who you speak with.

Below is some industry information to help you find some of the top ranked companies, but remember that there are many auto insurance companies who provide affordable and reliable policy coverage.

What auto insurance company has the largest market share?

The answer to this will depend on where you live but 10 auto insurance companies have almost 70% share of all auto insurance coverage nationwide.

While the position of these companies in relation to market share varies by ZIP code you will almost always see a few of these names on the list of auto insurance companies with the largest market share no matter where you live.

State Farm is the largest auto insurance company in the nation with almost twice the market share of Allstate at 18.6% and 10.5% respectively. Other members of the top 10 market share group for auto insurance include:

However, market share is just one factor when choosing an auto insurance company. Many drivers have very unique needs such as those with a high risk profile, classic car owners and even young drivers.

Never focus solely on the market share report since many great local and regional auto insurance companies never make this list yet provide comparable or better service and cost.

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What auto insurance has the best customer service?

Almost every driver has a different story about one auto insurance company over another so defining the auto insurance company with the best customer service can be a little tricky.

One of the most respected annual reports is the JD Power and Associates National Auto Insurance Study. The Amica Mutual Auto Insurance Company has won the top award for customer 12 years in a row.

With this kind of record it’s really hard not to award Amica Mutual with “the auto insurance company with the best customer service” award so you should always consider Amica Mutual as a potential auto insurance company, however remember that customer service means different things to different people.

Always shop around and compare auto insurance quotes before selecting a provider.

What auto insurance company has the cheapest auto insurance rates?

This is the most difficult question to answer. All drivers have unique risk profiles and auto insurance rates vary between providers depending on a number of variables.

Additionally, most reports published about the cost of auto insurance are typically based a defined class of drivers – a 40 year male good driver is the most common. What if you have a few speeding tickets, a DUI happen to be a new driver or even simply a woman driver?

Most of these average auto insurance rates will not apply. The cost of auto insurance between providers is very hard to compare without knowing your unique profile.

However it’s only logical to assume auto insurance companies with high market share and customer service ratings provide very competitive rates.

Compare Auto Insurance Quotes for new and used cars online!

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  3. How to choose the Best Auto Insurance Company?
  4. Where can I find auto insurance company ratings?
  5. Allstate vs. State Farm Insurance