Hereford is an unincorporated community in Meade County, in the U.S. state of South Dakota.
A post office called Hereford was established in 1894, and remained in operation until 1985. The community was so named for the Hereford cattle which grazed on the prairie.
Coordinates: 44°23′14″N 102°53′44″W / 44.38722°N 102.89556°W