With almost 2 square miles of extension, this territory of German and Irish ancestries is home of almost 8700 people with a population density of 4640 people per square mile. Windcrest, Terrell Hills, China Grove, and Alamo Heights are the closest cities to the heart of Kirby city, which is located in the San Antonio metro area and irrigated by the Rosillo Creek. The economy of this community has been typically based on agriculture and the urban scenario appeared in this land with the birth of the Southern Pacific railroad during the 1950s.