Cities in Dorchester County, United States ( 168 )
- Old Town, Maine
- Orange Cove
- Orange Park, Florida
- Oro Valley
- Orono, Maine
- Orrington
- Parlier
- Picture Rocks, Arizona
- Plattsburgh
- Prien, Louisiana
- Rantoul, Illinois
- Reedley, California
- Reedsport
- Riverdale, California
- Roseburg North
- Roseburg, Oregon
- Sahuarita
- Saint James, North Carolina
- Saint Joseph, Illinois
- San Joaquin, California
- Sanger, California
- Santa Rosa, New Mexico
- Savoy, Illinois
- Sellersburg
- Selma, California
- Seven Fields
- Shallotte
- Shanor-Northvue
- Shell Point, South Carolina
- Silver Springs, Nevada
- Slippery Rock, Pennsylvania
- South Tucson
- Southport, North Carolina
- Squaw Valley, California
- Sulphur, Louisiana
- Summit