Klaten Regency is a regency in Central Java province in Indonesia. It covers an area of 655.56 km2 and had a population of 1,130,047 at the 2010 Census and 1,260,506 at the 2020 Census. Its capital is the town of the same name.
Wikipedia https://en.wikipedia.org/wiki/Klaten_Regency
Coordinates -7°41'10.406" N 110°37'11.441" E