Aram Boghosian for The Boston Globe

Olympic gold medalist Aly Raisman waved during the parade Sunday in Needham.

Aram Boghosian for The Boston Globe

A large crowd watched the parade from the town hall to Needham High School.

Aram Boghosian for The Boston Globe

The parade ended in a rally on the Needham High School baseball field.

Aram Boghosian for The Boston Globe

Raisman addressed the crowd at the rally.

Aram Boghosian for The Boston Globe

She was named deputy sheriff by Norfolk County Commissioner Francis O'Brien.