Community Profile Founded in 1872, Trinity is located 80 miles northeast of Houston. Trinity Peninsula is an unofficial name for the area around the city of Trinity, which is bordered on three sides by Lake Livingston, a 90,000 acre lake. The population has shown moderate growth in recent years and has about 7,000 residents. Three thousand people live within the city itself. Seniors account for about 22 percent of the population.
Trinity is a prime location for outdoor activities such as boating, camping, fishing, and hunting.
The area offers a wide variety of activities for its residents and visitors alike with its small-town atmosphere and large city proximity. District Profile Trinity ISD is a AA school district located in Trinity County, Texas, encompassing approximately 142 square miles. Trinity schools have registered a steady enrollment growth over the past decade.