The first two houses with this name are found in the Valley of Oiarzun, Guipuzcoa. These were called Garaikoa (meaning the high one or the one in the high part) and Azpikoa (meaning the low one or the one in the low part). There are also branches in Legazpia, and other towns in Guipuzcoa. It is also found in the country of Ecuador.

This means The Good Place. Derrived from "Leku" (place) and "on" (good) with the addition of the article "a."

Coat of Arms: On a field of blue is a flying black eagle.