Car Insurance Companies: Market Share and Comparison Guides
Enter your ZIP code to compare quotes from multiple insurers.
By the AutoQuotesByZip editorial team. Last reviewed: October 4, 2026. Data: NAIC market share report, 2025 direct premiums written.
Ten insurance groups write more than three-quarters of U.S. private passenger auto insurance. NAIC’s market share report shows $371.04 billion in direct premiums written in 2025, with State Farm and Progressive each holding about 18.6%. Size alone does not tell you who will be cheapest in your ZIP code — each insurer prices locations, drivers and vehicles differently — which is why comparing several quotes matters.
Enter your ZIP code to compare quotes from multiple insurers.
Largest private passenger auto insurers
| Rank | Insurance group | Market share (2025) | Guide |
|---|---|---|---|
| 1 | State Farm | 18.64% | Our guide |
| 2 | Progressive | 18.60% | Our guide |
| 3 | Berkshire Hathaway (GEICO) | 11.56% | Our guide |
| 4 | Allstate | 10.15% | Our guide |
| 5 | USAA | 6.19% | — |
| 6 | Farmers | 3.57% | — |
| 7 | Liberty Mutual | 2.81% | — |
| 8 | Travelers | 1.93% | — |
| 9 | Auto Club Enterprises | 1.90% | — |
| 10 | American Family | 1.53% | — |
| 11 | Erie | 1.42% | — |
| 12 | Auto-Owners | 1.39% | — |
| 13 | CSAA | 1.37% | — |
| 14 | Nationwide | 1.10% | — |
| 15 | Mercury | 0.96% | — |
Compare quotes for your ZIP code from several of these insurers with identical coverage.
Our insurer guides
- GEICO insurance quotes — part of Berkshire Hathaway, the third-largest auto group.
- State Farm insurance quotes — the largest auto insurer by premiums.
- Progressive insurance quotes — essentially tied with State Farm for first.
- Esurance is now Allstate — what former Esurance customers should know.
- Safeway auto insurance quotes — a smaller insurer that does not appear among the largest groups.
Former brands
Esurance was bought by Allstate in 2011 and Allstate announced in 2019 that the brand would be phased out (Insurance Journal). Prudential no longer sells auto insurance in the U.S.; it agreed to sell its property and casualty business, including auto, to Liberty Mutual in 2003 (SEC filing).
How to compare insurers fairly
Request quotes with identical drivers, vehicles, limits and deductibles; then look beyond price at claims handling and complaint records. The NAIC Consumer Insurance Search shows complaint data by company, and your state insurance department publishes consumer guides — linked from our state pages. Our ZIP comparison method has a worksheet.
AutoQuotesByZip.com is not affiliated with, endorsed by or sponsored by any insurer named on this page. Company names are trademarks of their owners.
Sources
- NAIC, Private passenger auto market share report (2025 direct premiums written)
- Insurance Journal — Allstate to retire Esurance brand (Dec. 19, 2019)
- SEC — Prudential Financial press release on sale of P&C business to Liberty Mutual (2003)
- NAIC — Consumer Insurance Search
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