Kleberg County Texas has 7 places on the National Register of Historic Places including 1 place of National significance and 1 place of Statewide significance. Significant places include King Ranch and Dunn Ranch, Novillo Line Camp, King, Henrietta M., High School, Kleberg County Courthouse and Nance--Jones House.
Some of the country's most noteable architects helped create the Kleberg County places including Jules Carl Leffland, Kleberg Town & Improvement Co. and Atlee B. Ayres. Prominent architectural styles found in Kleberg Country are Bungalow/Craftsman, Classical Revival and Italianate.