Law Enforcement Agencies in Fostoria, KS KS › Pottawatomie County Agencies serving the city of Fostoria in KS. Agency Types in Fostoria County Jails 1 agencies Sheriff 1 agencies All Agencies in Fostoria, KS Pottawatomie County Jail Pottawatomie County Pottawatomie County Sheriffs Department Pottawatomie County
