Original sentence: The northern portion (places north of Interstate 287/Cross Westchester Expressway) is further from New York City and more rural; the southern portion (White Plains and south) is more densely populated and consists primarily of 'first-suburbs'
Edited sentence: For example, Bronxville, Larchmont, Rye and Scarsdale in the southern portion are among the wealthiest communities in the entire U.The northern portion (places north of Interstate 287/Cross Westchester Expressway) is often seen as rural and wealthy; the southern portion (White Plains and south) is more urban.These generalities, however, do not necessarily hold true in all communities