Harrison County Tax Collector (Vehicle Registration & Title) 1801 23rd Ave.Gulfport Mississippi 39501 MS USA 1801 23rd Ave.Directions (228) 865-4039 Monday 08:00 am - 05:00 pm Tuesday 08:00 am - 05:00 pm Wednesday 08:00 am - 05:00 pm Thursday 08:00 am - 05:00 pm Friday 08:00 am - 05:00 pm Saturday Closed Sunday Closed