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((More citations needed|date=February 2012))
((Infobox settlement
| name                            = Osan
| native_name                     = ((nobold|오산시))
| native_name_lang                = ko
| translit_lang1                  = Korean
| settlement_type                 = [[Cities of South Korea|Municipal City]]
| translit_lang1_type1            = [[Hangul]]
| translit_lang1_info1            = ((lang|ko|오산시))
| translit_lang1_type2            = [[Hanja]]
| translit_lang1_info2            = ((lang|ko|((linktext|烏|山|市))))
| translit_lang1_type3            = ((nowrap|Revised Romanization))
| translit_lang1_info3            = Osan-si
| translit_lang1_type4            = ((nowrap|McCune-Reischauer))
| translit_lang1_info4            = Osan-si
| image_skyline                   = 
| imagesize                       = 
| image_caption                   = 
| image_map                       = Gyeonggi-Osan.svg
| mapsize                         = 
| map_caption                     = Location in South Korea
| subdivision_type                = Country
| subdivision_name                = ((flag|South Korea))
| subdivision_type1               = [[Regions of Korea|Region]]
| subdivision_name1               = [[Gyeonggi Province]] ([[Seoul Capital Area|Sudogwon]])
| population_blank1_title         = Dialect
| population_blank1               = [[Seoul dialect|Seoul]]
| area_total_km2                  = 42.76
| population_as_of                = 2011
| population_total                = 193892
| population_density_km2          = 2824.2
| parts_type                      = [[Administrative divisions of South Korea|Administrative divisions]]
| parts                           = 6 ''dong''
| image_blank_emblem              = Osan logo.png
| blank_emblem_type               = Emblem of Osan
| image_flag                      = Flag of Osan.svg
))
'''Osan''' (((IPA-ko|o.san))) is a [[Subdivisions of South Korea|city]] in [[Gyeonggi]] Province, [[South Korea]], approximately ((convert|35|km|abbr=on)) south of [[Seoul]]. The population of the city is around 200,000.  The local economy is supported by a mix of agricultural and industrial enterprises.

It is famous for one of the largest markets in South Korea, [[Osan Market]], which has been in continuous operation since 1792.((Citation needed|date=February 2007)) The city was the scene of the [[Battle of Osan|first battle between the US and North Korea]] during the [[Korean War]] in 1950; there is a statue and museum dedicated to UN forces on the outskirts of the city.

The [[United States Air Force]] base named after the city, [[Osan Air Base]], is not actually located in the city, but is instead ((convert|8|km|abbr=on)) south, in the [[Songtan]] district (formerly a separate city) of [[Pyeongtaek]].

[[Osan Station]] is a large subway station located in the heart of Osan. It is part of the [[Seoul Subway Line 1]] and the [[KTX]]. There is a bus terminal next to the subway station and many buses stop in front of the subway station.

==Name==
Osan came to be called by its current name in 1914, at the time of a general reorganization of local governments under [[Korea under Japanese rule|Japanese rule]]. At that time it became Osan-myeon, part of [[Suwon]]. This name in turn was taken from that of a local stream, the [[Osancheon]]. However, prior to the Japanese occupation, the name had been rendered in [[hanja]] as 鰲山, meaning "[[Trionychidae|soft-shelled turtle]] mountain." Because of the complexity of the 鰲 ("o") character, and because [[crow]]s were abundant in the area, the Japanese changed the name to 烏山, meaning "crow mountain school."((Citation needed|date=February 2007))

==Administrative districts==
The administrative districts of Osan City consists of six administrative districts and 24 legal districts. Osan City has a population of 228,111 and 97,348 households as of the end of June 2020.<ref>[https://web.archive.org/web/20200301132209/http://www.osan.go.kr/osanStats/main.do]." Retrieved on March 1, 2020.</ref>
{| class="wikitable sortable"
! Name !! Hangul !! Hanja !! Household !! Population !! Area !! Legal districts
|-
|'''Chopyeong-dong''' || 초평동 || 楚坪洞 || 6,946 || 16,204 || 6.48&nbsp;km<sup>2</sup> || Beoreum-dong (벌음동; 伐音洞), Dugok-dong (두곡동; 斗谷洞), Part of Gasu-dong (가수동; 佳水洞), Part of Nueup-dong (누읍동; 樓邑洞), Seo-dong (서동; 西洞), Tap-dong (탑동; 塔洞)
|-
|'''Daewon-dong''' || 대원동 || 大園洞 || 26,921 || 64,484 || 6.20&nbsp;km<sup>2</sup> || Part of Busan-dong (부산동; 釜山洞), Cheongho-dong (청호동; 淸湖洞), Part of Galgot-dong (갈곶동; 葛串洞), Gohyeon-dong (고현동; 高峴洞), Part of Osan-dong (오산동; 烏山洞), Won-dong (원동; 園洞)
|-
|'''Jungang-dong''' || 중앙동 || 中央洞 || 14,080 || 36,243 || 3.66&nbsp;km<sup>2</sup> || Part of Busan-dong, Part of Eungye-dong (은계동; 銀溪洞), Part of Osan-dong
|-
|'''Namchon-dong''' || 남촌동 || 南村洞 || 12,895 || 19,925 || 6.06&nbsp;km<sup>2</sup> || Cheonghak-dong (청학동; 靑鶴洞), Gajang-dong (가장동; 佳長洞), Part of Galgot-dong, Part of Gasu-dong, Part of Gwol-dong (궐동; 闕洞), Part of Osan-dong
|-
|'''Sema-dong''' || 세마동 || 洗馬洞 || 12,519 || 31,862 || 13.32&nbsp;km<sup>2</sup> || Jigot-dong (지곶동; 紙串洞), Oesammi-dong (외삼미동; 外三美洞), Segyo-dong (세교동; 細橋洞), Seorang-dong (서랑동; 西廊洞), Yangsan-dong (양산동; 陽山洞)
|-
|'''Sinjang-dong''' || 신장동 || 新場洞 || 23,987 || 59,393 || 7.04&nbsp;km<sup>2</sup> || Part of Eungye-dong, Geumam-dong (금암동; 錦岩洞), Part of Gwol-dong, Naesammi-dong (내삼미동; 內三美洞), Sucheong-dong (수청동; 水淸洞)
|-
|'''Total''' || || || 97,348 || 228,111 || 42.76&nbsp;km<sup>2</sup> ||
|-
|}

==Climate==
Osan has a [[humid continental climate]] ([[Köppen climate classification|Köppen]]: ''Dwa''), but can be considered a borderline [[humid subtropical climate]] ([[Köppen climate classification|Köppen]]: ''Cwa'') using the ((convert|-3|C)) isotherm.
((Weather box
| location = Osan (1993–2020 normals)
| metric first = Y
| single line = Y

| Jan high C = 2.6
| Feb high C = 5.7
| Mar high C = 11.8
| Apr high C = 18.8
| May high C = 24.5
| Jun high C = 28.3
| Jul high C = 30.0
| Aug high C = 31.0
| Sep high C = 26.8
| Oct high C = 20.7
| Nov high C = 12.6
| Dec high C = 4.7
| year high C = 18.1

| Jan mean C = -2.6
| Feb mean C = -0.1
| Mar mean C = 5.4
| Apr mean C = 11.9
| May mean C = 17.6
| Jun mean C = 22.1
| Jul mean C = 25.2
| Aug mean C = 25.7
| Sep mean C = 21.0
| Oct mean C = 14.1
| Nov mean C = 7.0
| Dec mean C = -0.4
| year mean C = 12.2

| Jan low C = -7.4
| Feb low C = -5.2
| Mar low C = -0.1
| Apr low C = 5.7
| May low C = 11.8
| Jun low C = 17.3
| Jul low C = 21.7
| Aug low C = 22.2
| Sep low C = 16.5
| Oct low C = 8.8
| Nov low C = 1.9
| Dec low C = -5.0
| year low C = 7.4

| precipitation colour = green
| Jan precipitation mm = 15.3
| Feb precipitation mm = 24.2
| Mar precipitation mm = 34.6
| Apr precipitation mm = 76.0
| May precipitation mm = 92.2
| Jun precipitation mm = 114.9
| Jul precipitation mm = 342.2
| Aug precipitation mm = 257.4
| Sep precipitation mm = 134.2
| Oct precipitation mm = 52.7
| Nov precipitation mm = 42.6
| Dec precipitation mm = 18.1
| year precipitation mm = 1204.4

| unit precipitation days = 0.1 mm
| Jan precipitation days = 3.6
| Feb precipitation days = 3.5
| Mar precipitation days = 5.0
| Apr precipitation days = 6.4
| May precipitation days = 6.9
| Jun precipitation days = 7.2
| Jul precipitation days = 12.7
| Aug precipitation days = 12.0
| Sep precipitation days = 7.1
| Oct precipitation days = 4.7
| Nov precipitation days = 6.5
| Dec precipitation days = 5.1

| source = [[Korea Meteorological Administration]]<ref name= KMA>
((cite web
| archive-url = https://web.archive.org/web/20220129211110/https://data.kma.go.kr/resources/normals/pdf_data/korea_pdf_0106_v2.pdf
| archive-date = 29 January 2022
| url = https://data.kma.go.kr/resources/normals/pdf_data/korea_pdf_0106_v2.pdf
| title = Climatological Normals of Korea (1991 ~ 2020)
| publisher = Korea Meteorological Administration
| access-date = 7 June 2023
| language = ko))</ref>
))

==Sister cities==
*((flagdeco|Japan)) [[Hidaka, Saitama|Hidaka]], [[Saitama Prefecture|Saitama]], Japan <ref name=International>((cite web|url=http://www.clair.or.jp/cgi-bin/simai/e/03.cgi?p=11&n=Saitama%20Prefecture|title=International Exchange|work=List of Affiliation Partners within Prefectures|publisher=Council of Local Authorities for International Relations (CLAIR)|language=en|access-date=21 November 2015|url-status=dead|archive-url=https://web.archive.org/web/20160104170705/http://www.clair.or.jp/cgi-bin/simai/e/03.cgi?p=11&n=Saitama%20Prefecture|archive-date=4 January 2016))</ref> 
*((flagdeco|PRC)) [[Ürümqi]], [[Xinjiang]], China
*((flagdeco|US)) [[Killeen, Texas|Killeen]], [[Texas]], U.S.
*((flagdeco|US)) [[Miami, Florida|Miami]], [[Florida]], U.S.
*((flagdeco|IRN)) [[Qazvin]], Iran

==Economy==
[[Kyochon]], a fried chicken chain, has its head office in Osan.<ref>"[https://web.archive.org/web/20081217143940/http://kyochon.com/usa/Etc/Contactus01.asp Contact]." [[Kyochon]]. Retrieved on November 3, 2009.</ref>

==See also==
* [[List of cities in South Korea]]
* [[Geography of South Korea]]

==References==
((Reflist))
* ((Cite web|access-date=2006-03-23|url=http://www2.purunet.com/HW/hw_help/field/field_data%5C6_7617_3.htm |archive-url=https://web.archive.org/web/20060818145047/http://www2.purunet.com/HW/hw_help/field/field_data%5C6_7617_3.htm |url-status=dead |archive-date=August 18, 2006 |script-title=ko:오산시의 지명 유래))

==External links==
*[https://web.archive.org/web/20171009041605/http://www.osan.go.kr/osan/eng/main.do City government website] ((in lang|en))
*[https://www.osancouncil.go.kr/en/main City Council website] ((in lang|en))

((Gyeonggi))
((Metropolitan cities of South Korea)) 
((Most populous cities in South Korea))
((Coord|37.149799|127.077116|type:city|display=title|format=dms))
((Authority control))

[[Category:Osan| ]]
[[Category:Cities in Gyeonggi Province]]

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