Seventy-five county Sheriffs shown on the map below are current members of the Oklahoma Sheriffs’ Association for the year 2015 and are afforded all rights and privileges of membership. OSA memberships are due by the end of January each year. Upon receipt of the dues by the Sheriff, all members of the Sheriff’s staff become members of the Association. The Association extends its thanks to each of the Sheriffs for their support and trust in the Oklahoma Sheriffs’ Association.