The current Kendall County Courthouse located in Boerne, Texas, United States was built in 1998. – Larry D. Moore, CC BY 4.0 – Wikimedia Commons Kendall County is located in Texas. About 40,384 people live here. Between 2010 and 2020, the population grew from 33,410 to 44,279. The area covers about 1,717.0 square kilometers. The region is divided into 1 Municipalities. The region was founded in 1862. The name originates from George Wilkins Kendall (American journalist and pioneer Texas sheepman) Kendall County is county in Texas, United States. More information at www.kendallcountytx.gov.