McCulloch County Courthouse in Brady, Texas, also known as the "Heart of Texas" – Texas.pics, CC BY-SA 4.0 – Wikimedia Commons Brady is located in McCulloch County. About 5,118 people live here (as of 2020). Between 2010 and 2020, the population declined from 5,528 to 5,118. The region is at 511 meters above sea level. The area covers about 29.2 square kilometers. There are about 379 streets in Brady. The postal codes are 76825. The dialing code is 325. Brady is city in and county seat of McCulloch County, Texas, United States. Among other things, Brady has restaurants and schools. More information at www.bradytx.us.