Avondale is one of Chicago's 77 officially designated community areas. It is on the Northwest Side of the city. The northern border is Addison Street from the north branch of the Chicago River in the east to Pulaski Road in the west. The neighborhood extends further west along Belmont Avenue to the Union Pacific/Northwest Line. Its southern border is Diversey Avenue from the Union Pacific/Northwest Line to the Chicago River.

Pulaski Road is a major north-south street in the city of Chicago, at 4000 W., or exactly five miles west of State Street. It is named after Polish hero of the American Revolutionary War Casimir Pulaski.