Levittown's rhymes with:
hometowns, johnstown's, motown's, shantytowns, yorktown's, breakdowns, closedowns, countdowns, crackdowns, drawdowns, hometowns, johnstown's, markdowns, motown's, putdowns, shakedowns, shantytowns, showdowns, shutdowns, slowdowns, southdown's, touchdowns, writedowns, yorktown's
Levittown's sounds like:
leftwing, leptonic, levitating, lifetime's, lifetimes, lifting, lipton's, lufthansa, lufthansa's