Kudus is a regency in Central Java province in Indonesia. Its capital is Kudus. It covers 425.16 km² and is thus the smallest regency on Java Island in area, and it had a population of 777,437 at the 2010 Census and 849,184 at the 2020 Census, comprising 423,777 males and 425,407 females. It is located east of Semarang, the capital of Central Java.