in Java for more information. Administrative areas See also: Subdivisions of Indonesia East Java is administratively divided into 29 regencies (or kabupaten ) and 9 cities (or kotamadya ). Regencies (seat): Bangkalan Regency ( Bangkalan ) Banyuwangi Blitar Bojonegoro Bondowoso Gresik Jember Jombang Kediri Lamongan , Lumajang Madiun Magetan Malang Mojokerto