Seongju County

{{Infobox settlement

| name = Seongju

| native_name = {{nobold|성주군}}

| native_name_lang = ko

| settlement_type = County

| translit_lang1 = Korean

| translit_lang1_type1 = Hangul

| translit_lang1_info1 = 성주군

| translit_lang1_type2 = Hanja

| translit_lang1_info2 = {{linktext|星|州|郡}}

| translit_lang1_type3 = {{nowrap|Revised Romanization}}

| translit_lang1_info3 = Seongju-gun

| translit_lang1_type4 = {{nowrap|McCune-Reischauer}}

| translit_lang1_info4 = Sŏngju-gun

| image_skyline =

| imagesize =

| image_caption =

| image_map = North Gyeongsang-Seongju.svg

| mapsize =

| map_caption = Location in South Korea

| subdivision_type = Country

| subdivision_name = {{flag|South Korea}}

| subdivision_type1 = Region

| subdivision_name1 = Yeongnam

| population_blank1_title = Dialect

| population_blank1 = Gyeongsang

| area_total_km2 = 616.28

| population_as_of = September 2024{{cite web |url=https://jumin.mois.go.kr/|title=Population statistics |date=2024|website=Korea Ministry of the Interior and Safety}}

| population_total = 41,591

| population_density_km2 = 82.8

| parts_type = Administrative divisions

| parts = 1 eup, 9 myeon

| image_blank_emblem = Seongju logo.jpg

| blank_emblem_type = Emblem of Seongju

| image_flag = Flag of Seongju.svg

}}

Seongju County (Seongju-gun) is a county in North Gyeongsang Province, South Korea. This largely agricultural area is located immediately west of the metropolitan city of Daegu. The capital of the county is the town of Seongju.

Lotte Skyhill Seongju Country Club ({{Coord| 36.049359| 128.226223| display=inline}}) was selected as the location for the deployment of Terminal High Altitude Area Defense (THAAD) system in July 2016.{{cite web |title=THAAD’s new home will be golf course in South Korean mountains |date=September 30, 2016 |publisher=STARS AND STRIPES |url=https://www.stripes.com/news/thaad-s-new-home-will-be-golf-course-in-south-korean-mountains-1.431721#.WMoKt8CGPos}}{{cite web|title=Seongju confirmed as site for THAAD|url=https://www.koreatimes.co.kr/www/news/nation/2016/07/116_209328.html|work=The Korea Times|author=Kang Seung-woo|publisher=|date=13 July 2016|access-date=15 September 2016|language=}}

Seongju County is famous for its production of oriental melons. Farms in the county comprise about 70% of total oriental melon production in the country.{{Cite web |url=http://www.atcenter.or.jp/item/list/chame.php |title=韓国農水産食品-チャメ（マクワウリ）[Kankoku Nōsui-san shokuhin - chame (makuwauri)] |website=www.atcenter.or.jp |publisher=Korea Agro-Fisheries Trade Corporation |language=ja |access-date=2018-09-17}}