WICHITA. I. An unorganized N. W. county of Texas, bounded N. by Red river and drained by the Wichita and other streams; area, 655 sq. m.; returned as having no population in 1870. It has a diversified surface, and is partly covered by dense forests. II. An unorganized W. county of Kansas; area, 720 sq. m. It is watered by affluents of the Arkansas and Smoky Hill rivers, and has a level or slightly rolling surface.