Kirby is a city in Bexar County, Texas, United States. It is an enclave of San Antonio and is part of the San Antonio Metropolitan Statistical Area. Founded as an agricultural settlement along the Southern Pacific railroad, the city was transformed into a suburban community upon its incorporation in 1955. The population of 8,000 (2010 census) is made up of diverse individuals with numerous backgrounds. African Americans, German, and Hispanic elements have all affected the overall culture of the city.
Kirby is located at 29°27′40″N 98°23′20″W (29.461032, -98.388763).
According to the United States Census Bureau, the city has a total area of 1.9 square miles (4.9 km2), of which, 1.9 square miles (4.9 km2) of it is land and 0.04 square miles (0.10 km2) of it (1.58%) is water.
As of the census of 2000, there were 8,673 people, 2,975 households, and 2,317 families residing in the city. The population density was 4,641.1 people per square mile (1,790.7/km²). There were 3,137 housing units at an average density of 1,678.7/sq mi (647.7/km²). The racial makeup of the city was 64.27% White, 14.56% African American, 0.53% Native American, 2.06% Asian, 0.14% Pacific Islander, 14.83% from other races, and 3.61% from two or more races.