South Central Idaho is in Idaho.
As in the rest of Idaho, English is the main language and the only language travelers can be assured of not encountering any difficulty with. However, Spanish is widely spoken by a significant Hispanic minority throughout the region. Many people from Eastern Europe and the former Soviet Union have been brought in by a refugee center operated by the College of Southern Idaho in Twin Falls, creating a community of Russian and Bosnian speakers.
Rupert has the Sugar Beet Drop as an annual New Year celebration.
A highlight of this area is the scenery far to the south of I-84 that includes unique geological formations that have been set aside in the City of Rocks National Reserve and Castle Rocks State Park, both part of the Albion Mountains. A good way to do this is by taking the City of Rocks Backcountry Byway, which is described in more detail on the Burley city page.