San Patricio County District Clerk - Heather Marks Share: Local / State / Federal Government San Patricio County District Clerk - Heather Marks Request Info 400 W Sinton Sinton, Texas 78387 (361) 364-9377 Rep Info Map Whom to Contact Heather B Marks Phone: (361) 364-9377 What's Nearby? Distance: 5 10 15 20 25 50 mi.