United States:
* Rockford, Illinois
* Rock Hill, South Carolina
* Rock Island, Illinois
* Rock Springs, Wyoming
* Rockwall, Texas
* Rockport, Texas
* Rockledge, Florida
* Rocklin, California
* Rocky Mount, North Carolina
* Rocky River, Ohio
* Rockville, Maryland
* Rockville Centre, New York
* Rockaway Beach, Oregon
* Rockaway Park, New York
* Rockaway Township, New Jersey
Other Countries:
* Rockhampton, Australia
* Rock Creek, Canada
* Rock Springs, Wyoming, USA
Note: This is not an exhaustive list. There are likely other cities around the world with "rock" in their names.