Yes, there are. Teton County Emergency Management has a limited number of sandbags for local residents and businesses. They will be made available on a first-come, first-serve basis when flooding potential is high (such as during National Weather Service-issued flood watches and warnings).
Residents and businesses that are at risk for flooding should contact Emergency Management at 307-733-9572 to request sandbags. Recipients of sandbags are responsible for obtaining their own sand and also for building their sandbag dikes. After the risk of flooding has subsided, usable sandbags are to be returned to Emergency Management for future distribution.