Question

The first suburban neighborhood that attracted many post-war families was
in New York City.

Answer 1

Levittown in Nassau County

Step-by-step explanation:

is a rather quaint hamlet that was planned and constructed from 1947 to 1951. Named after the firm Levitt & Sons, Inc. founded by Abraham Levitt, the settlement was built for returning World War II veterans and is today considered one of the first mass-produced suburbs in the country.