Rock Hill is located at 34°55'27" North, 81°1'30" West (34.924444, -81.025000).
According to the United States Census Bureau, the city has a total area of 31.06 mi2 (80.44 km2). 31.03 mi2 (80.36 km2) of it is land and 0.03 mi2 (0.08 km2) of it is covered by water. The total area is 0.10% water.
Rock Hill is located in the Eastern Standard Time (EST) timezone, GMT-05:00. It observes Daylight Saving Time (DST).