Question: How many people in 2013 lived in the city that is home to Yamada Castle historic site ?

text: List of Historic Sites of Japan (Okinawa)
National Historic Sites
As of 1 August 2019 , forty-one Sites have been designated as being of national significance . [ 3 ] [ 4 ] [ 5 ]
This list is of the Historic Sites of Japan located within the Prefecture of Okinawa. Much of the heritage of the Ryūkyū Kingdom and Islands was destroyed during the Battle of Okinawa. The mausoleum complex of Tamaudun, Shuri Castle, Katsuren Castle, Nakagusuku Castle, Nakijin Castle, Zakimi Castle, Sefa-utaki, and Sonohyan-utaki all form part of the UNESCO World Heritage Site Gusuku Sites and Related Properties of the Kingdom of Ryukyu.
Site Island Municipality Comments Type Ref
Furusutobaru Castle フルスト原遺跡 Furusutobaru iseki Ishigaki Island Ishigaki C13-C15 gusuku -style fortifications , domestic buildings , utaki , and tombs extending for 12.3 ha on the Ryūkyū limestone ( 琉球石灰岩 ) hills overlooking Miyara Bay ; said to have been used by Oyake Akahachi and suppressed by the forces of Shō Shin in 1500 ; finds include local pottery , white porcelain and celadon from China , and the bones of horses and cows 2 [ 1 ]
Agena Castle Site 安慶名城跡 Agena-jō ato Okinawa Island Uruma gusuku fortified in the fifteenth century 2 [ 2 ]
Iha Shell Mound 伊波貝塚 Iha kaizuka Okinawa Island Uruma Jōmon site discovered in 1920 ; finds include shells , fish bones , animal borns , earthenware , stoneware , and goods made of horn 1 [ 3 ]
Ireibaru Site 伊礼原遺跡 Ireibaru iseki Okinawa Island Chatan early Jōmon site ; goods of jade and obsidian are evidence of early maritime trade 1 [ 4 ]
Uegusuku Castle Site 宇江城城跡 Uegusuku-jō ato Kumejima Island Kumejima of uncertain date , but probably razed at the time of assimilation into the Ryūkyū Kingdom c.1500 ; finds include Chinese ceramics and fish bones ; the view extends over the entire island 2 [ 5 ]
Uzahama Site 宇佐浜遺跡 Uzahama iseki Okinawa Island Kunigami Yayoi site on the northern tip of the island 1 [ 6 ]
Urasoe Castle Site 浦添城跡 Urazoe-jō ato Okinawa Island Urasoe fortifications date back to C13/C14 ; incurred heavy damage during the Battle of Okinawa 2 [ 7 ]
Enkaku-ji Site 円覚寺跡 Enkaku-ji ato Okinawa Island Naha founded in 1492 by Shō Shin ; the wooden temple buildings were destroyed during the war , an ornately carved stone bridge ( ICP ) survives 3 [ 8 ]
Ogidō Shell Mound 荻堂貝塚 Ogidō kaizuka Okinawa Island Kitanakagusuku Jōmon period , with a 1.2 m thick deposit of shells 1 [ 9 ]
Shimotabaru Castle Site 下田原城 跡 Shimotabaru-jō ato Hateruma Island Taketomi  2 [ 10 ]
Tamagusuku Castle Site 玉城城跡 Tamagusuku-jō ato Okinawa Island Nanjō  2 [ 11 ]
Tamaudun 玉陵 Tamaudun Okinawa Island Naha royal mausoleum complex constructed in 1501 ; World Heritage Site 7 [ 12 ]
Kushibaru Shell Mound 具志原貝塚 Kushibaru kaizuka Ie Island Ie variety of shells and Jōmon and Yayoi earthenware 1 [ 13 ]
Gushikawa Castle Site 具志川城跡 Gushikawa-jō ato Okinawa Island Itoman C13-C15 Chinese ceramics found during excavations ; thirteen-year restoration project between 2000 and 2012 2 [ 14 ]
Gushikawa Castle Site 具志川城 Gushikawa-jō ato Kumejima Island Kumejima same name but distinct from the castle in Itoman 2 [ 15 ]
Kunigami Hōsei Kaidō 国頭方西海道 Kunigami hōsei kaidō Okinawa Island Onna historic route on the west coast of the island 6 [ 16 ]
Nakijin Castle Site 今帰仁城跡 附シイナ城跡 Nakijin-jō ato tsuketari Shiina-jō ato Okinawa Island Nakijin sacked in 1432 ; World Heritage Site ; designation includes the site of Shiina Castle ( シイナ城 ) 2 [ 17 ]
Zakimi Castle Site 座喜味城跡 Zakimi-jō ato Okinawa Island Yomitan constructed c. 1420 by Gosamaru ; World Heritage Site 2 [ 18 ]
Sefa-utaki 斎場御嶽 Seifa-utaki Okinawa Island Nanjō shrine ; excavated artefacts including magatama are an ICP ; World Heritage Site 3 [ 19 ]
Yamada Castle Site 山田城跡 Yamada-jō ato Okinawa Island Onna Home of Gosamaru . Partially deconstructed to build Zakimi Castle 2 [ 20 ]