Geography Blanchard is located in northwestern McClain County. The city limits extend west into Grady County. According to the United States Census Bureau, the city has a total area of , of which are land and , or 0.38%, are water.
Geography Blanchard is located in northwestern McClain County. The city limits extend west into Grady County. According to the United States Census Bureau, the city has a total area of , of which are land and , or 038%, are water.