where is dilley texas
DILLEY, TX. DILLEY, TEXAS. Dilley is on the Missouri Pacific Railroad and Interstate Highway 35 sixteen miles southwest of Pearsall in far southern Frio County. The community was originally called Darlington, after a local landowner who settled in the area in the mid-1860s.ata Compiled by the Texas History Class of 1936, Dilley High School (MS, Frio County Vertical File, Pearsall Municipal Library, Pearsall, Texas).