Yes your credit score is used as a decision maker in what your insurance rates will be set at.
Your credit score also effects what's known as an insurance score which is also based on your credit score.
The higher your credit score and higher your insurance score the lower your insurance rates and insurance cost will be and the lower your credit score and lower your insurance score the higher your insurance rates and costs will be.
So to get the best insurance rates and cheapest insurance whether for auto insurance, home insurance, renters insurance etc having a good credit score is essential.