Mito-Shi 31 Hitachi City 7 Tsuchiura-Shi 12 Koga 5 Ishioka-Shi 6 Ryugasaki-Shi 3 Shimotsuma-Shi 2 Joso-Shi 2 Kasama City 3 Toride City 2 Ushiku 8 Tsukuba-Shi 51 Hitachinaka-Shi 10 Kashima-Shi 3 Itako 3 Moriya-Shi 9 Chikusei 4 Inashiki City 1 Kasumigaura City 1 Sakuragawa 1 Kamisu-Shi 10 Namegata City 1 Hokota 2 Omitama-Shi 5 Higashiibaraki-gun, Ibaraki-machi 1 Oarai-Machi 3 Tokai Village 1 Ami-Machi 48 Sarushima District 2