Grayson County Registration & Titling 100 W. Houston St.Sherman Texas 75090 TX Grayson 100 W. Houston St.Directions (903) 813-4225 Monday 08:00 am - 05:00 pm Tuesday 08:00 am - 04:30 pm Wednesday 08:00 am - 04:30 pm Thursday 08:00 am - 04:30 pm Friday 08:00 am - 04:30 pm Saturday Closed Sunday Closed