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About Minidoka County
Minidoka County covers 1,976 acres of farmland and desert in the Snake River Basin. It is part of an area called Magic Valley, because of its conversion from desert to farmland with irrigation water from the Snake River. The river forms the county's southern boundary, and to the north, it extends far into the lava beds near Craters of the Moon National Monument.
The county was created on January 28, 1913, being split off of Lincoln County, to the west. Its county seat is at Rupert. The population is 20,174, as of the 2000 census. Idaho Highway 25 crosses the county east to west and Idaho Hghway 24 enters the southern boundary heading northeast, then takes a sudden turn to the northwest. Interstate 84 passes along the southern edge of the county.