Keyes is a census-designated place (CDP) in Stanislaus County, California, United States. The population was 5,601 at the 2010 census, up from 4,575 at the 2000 census. It is part of the Modesto Metropolitan Statistical Area.
Keyes is located at 37°33′42″N 120°55′2″W / 37.56167°N 120.91722°W / 37.56167; -120.91722 (37.561800, -120.917361).
According to the United States Census Bureau, the CDP has a total area of 2.8 square miles (7.3 km²), all of it land.