The Greenwich neighborhood of Riverside is Connecticut’s wealthiest ZIP code and the nation’s 17th overall, according to a Bloomberg survey.

Suburbs of New York City dominate the list of 50 wealthiest ZIP codes in the northeastern U.S., with 10577 in the Westchester County suburb of Harrison topping the list with an average gross income nearing $1 million.

In New Jersey, the 07931 ZIP code for the borough of Far Hills leads the state, while Gladwyne along Philadelphia’s Main Line is Pennsylvania’s top earner. The Boston suburb of Weston ranked third in the Northeast.