District 103 stretches through four cities in North Texas: Dallas, Irving, Farmers Branch, and Carrollton. The district runs through various neighborhoods that include, among others, Oak Cliff, West Dallas, and La Bajada. There are approximately 29,243,342 people who call District 103 home.

Inside District 103 are three school districts. Dallas Independent School District, Irving Independent School District and Carrollton-Farmer Branch Independent School District.

Elections for the Texas House are conducted every two years. Contact the Dallas County Elections Department for election schedules and for information on registering to vote.