A Bloomberg report is out on the 100 richest towns in America, and four towns in Connecticut made the list.

According to the report, the four towns are Darien, Old Greenwich, Riverside, and Westport.

The report based its assessment on household income, with the top towns in America having households that earn more than $400,000 a year.

Darien ranked among the top 10 richest towns in America while Old Greenwich ranked 16th and Riverside, and Westport among the top 20. 

The average Darien household income is $352,829, according to the report.  

The richest town in America is Atherton, California, followed by Scarsdale, New York and Hillsborough, California.