Located in Sealy, TX, the Tri-County ER is a department of Bellville Medical Center, with all the support that brings. That means that our ER is held to a higher standard of care, the same standard that our Bellville campus must maintain. Our doctors are trained ER physicians and the nurses and ancillary staff are all employed and trained by Bellville Medical Center to assure you the standard of Emergency Care you can count on.