Auto insurance rates will rise an average of 5.7 percent beginning Dec. 8 for New Orleans customers of State Farm Mutual Automobile Insurance Co., which insures about one in three vehicles in Louisiana.

The state’s largest auto insurer said it will increase auto premiums for liability, collision and comprehensive coverage. Comprehensive covers losses from theft, storm damage, fire, vandalism and windshield damage.

Statewide, State Farm auto rates will rise an average of 3.7 percent. The auto rate increase will generate $40.4 million annually from State Farm’s 1 million Louisiana customers, which averages out to about $40 per customer.

However, rates and increases will vary depending on a number of factors, including repair costs, where a person lives, their coverage and the discounts for which they qualify. Costs trend higher in the New Orleans area, according to State Farm. The increases start Dec. 8 and, for existing customers, take effect when they renew their policies.

The company’s last automobile rate increase, 3.5 percent, took effect in February.

Auto insurance rates in Louisiana are, and have been, among the highest in the United States.

The highest rates in Louisiana are found in Orleans, St. Bernard, Plaquemines and Jefferson parishes. Rates will increase an average of 5 percent in the Metairie area and 5.2 percent on the West Bank, according to State Farm. In the western part of New Orleans, rates will rise an average of 4.1 percent.

In south Jefferson Parish, St. Charles, Plaquemines and north Lafourche, rates will rise an average of 3.4 percent. In St. Tammany Parish, rates will rise an average of 3.3 percent. In south Lafourche and Terrebonne, rates will increase 0.4 percent.

Insurance Commissioner Jim Donelon has said Orleans motorists paid 40 percent more for auto coverage than the average statewide. Louisiana ranked No. 1 or No. 2 from 2010 to 2013 in online insurance website Insure.com’s auto rates survey before dropping to No. 7 in 2014.

Financial data consultants BankRate.com found the average cost of auto insurance in Louisiana was $1,277 from 2007 to 2011.