Uninsured motorist coverage. To select the best indiana car insurance companies, we analyzed factors such as overall customer satisfaction, coverage, discounts, premiums, and more. We looked at 35-year-old drivers to find the cheapest company overall, the cheapest company for minimum coverage and the cheapest company for drivers with poor credit in states where credit history is used to price rates. However, the table here reveals that indiana car insurance companies are seeing healthy gains to losses. Some of the cheapest auto insurance companies in indiana are usaa, geico, state farm and indiana farmers mutual. The average cost of car insurance in indiana is below the state average, but you might still be looking at a high quote. In an effort to provide accurate and unbiased information to consumers, our expert review team collects data from dozens of auto insurance providers to formulate rankings of the best car insurance companies.