2. Darien, Conn.
Thirty-seven miles northeast of New York City, with a population of less than 21,000, Darien is one of the wealthiest municipalities in America. The average annual household income is over $300,000. Darien residents have a median credit card debt of $7,935 with a $1,167 finance charge that will take an estimated 23 months and eight days to pay off.
