The East Cassia, Minidoka, and West Cassia Soil & Water Conservation Districts (SWCD) are sub-units of state government, responsible for soil and water conservation activities within their boundaries.   All 3 Districts are managed by a board of district supervisors elected to the position by Cassia County and Minidoka County residents.  They serve voluntarily and without pay.  

The SWCD supervisors work with farmers and ranchers, cities, counties, and government agencies at all levels.  By encouraging basic conservation work on private land, SWCD activities help control soil erosion and improve water quality.