Central Region
Adams County, Boise County, Custer County, Gem County, Idaho County, Lemhi County, Payette County, Valley County, Washington County
North Region
Benewah County, Bonner County, Boundary County, Clearwater County, Kootenai County, Latah County, Lewis County, Nez Perce County, Shoshone County
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South East Region
Bannock County, Bear Lake County, Bingham County, Bonneville County, Caribou County, Clark County, Franklin County, Fremont County, Jefferson County, Madison County, Oneida County, Power County, Teton County
South Region
Blaine County, Butte County, Camas County, Cassia County, Gooding County, Jerome County, Lincoln County, Minidoka County, Twin Falls County
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South West Region
Ada County, Canyon County, Elmore County, Owyhee County
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Regions in Idaho:
(with names of Districts/Counties in each region)