Citizens State Bank-sinai 310 Main St Sinai, SD 57061 Phone : (605) 826-4151 Quam Roofing Po Box 23 Sinai, SD 57061 Phone : (605) 826-4299 Dial House Sinai, SD 57061 Phone : (605) 826-9052 Kjjq Tower Site Sinai, SD 57061 Phone : (605) 826-4391 Sinai Fire Hall Po Box 31 Sinai, SD 57061 Phone : (605) 826-4291 Nicks Tile & Hard Surface Po Box 142 Sinai, SD 57061 Phone : (605) 826-4368 Post Office - Sinai 301 Main Ave Sinai, SD 57061 Phone : (605) 826-4306 Little House On The Prairie Po Box 100 Sinai, SD 57061 Phone : (605) 826-4282 Sinai Lutheran Church 304 S 1st St Sinai, SD 57061 Phone : (605) 826-4241 Dakota Aqua-trapping Systems 108 Park Ave Sinai, SD 57061 Phone : (605) 826-4170 Sinai Cooperative Elevator Co 323 Main Ave Sinai, SD 57061 Phone : (605) 826-4321 Sinai Locker Service 306 Main St Sinai, SD 57061 Phone : (605) 826-4274 Pure Sound Po Box 40 Sinai, SD 57061 Phone : (605) 826-4350