Homes for Sale Under 100K in Custer County, ID

Based on information from the Snake River Regional MLS through Oct 10, 2026, 6:15 PM. IDX information is provided exclusively for consumers(U+0027) personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. While the data is considered reliable, it is not guaranteed by the MLS and should be independently verified for accuracy. © 2026 Snake River Regional Multiple Listing Service (owned and operated by the Greater Idaho Falls Association of REALTORS®, the Greater Blackfoot Association of REALTORS®, and the Upper Valley Association of REALTORS® . All Rights Reserved.