Piggybacking Names in the Chicago Suburbs

The Chicago area has a lot of suburbs. Some of them too their names from the City of chicago, or older suburbs near by:

The suburbs of East Chicago, North Chicago, West Chicago, Chicago Heights, and Chicago Ridge all derived their name from Chicago.

Palos Park led to Palos Hills and Palos Heights.

From La Grange came La Grange Park.

Orland Park led to Orland Hills.

Barrington spawned North Barrington, South Barrington, Barrington Hills, Lake Barrington, and (recently) Port Barrington.

Clintonville renamed itself South Elgin, after its bigger neighbor Elgin.

Oak Brook preceded Oak Brook Terrace.

Glen Ellen preceded Glendale, which later changed its name to Glendale Heights.

Round Lake as followed by Round Lake Beach, Round Lake Park, and Round Lake Heights.

Park Forest lead to Park Forest South (which later renamed itself University Park).

At least two suburbs got their names by combining the names of two other, nearby communities:

Norridge was named from Park Ridge and Norwood Park (which is a neighborhood in Chicago, not a suburb).

Prospect Heights was named from Mount Prospect and Arlington Heights.