{{Infobox settlement <!-- See Template:Infobox settlement for additional fields and descriptions --> | name = Sanmu | native_name = {{nobold|{{lang|ja|山武市}}}} | official_name = | native_name_lang = ja | settlement_type = City <!-- images, nickname, motto --> | image_skyline = Sammu City Hall Naruto Building.jpg | imagesize = | image_alt = | image_caption = Sanmu City Hall | image_flag = Flag of Sanmu, Chiba.svg | flag_alt = | image_blank_emblem = Emblem of Sanmu, Chiba.svg | blank_emblem_type = Emblem | nickname = | motto = <!-- maps and coordinates --> | image_map = Location of Sammu city Chiba prefecture Japan.svg | map_alt = | map_caption = Location of Sanmu in Chiba Prefecture | pushpin_map = Japan | pushpin_label_position = <!-- position of the pushpin label: left, right, top, bottom, none --> | pushpin_map_alt = | pushpin_map_caption = &nbsp; | coordinates = {{coord|35|36|N|140|25|E|region:JP|display=inline,title}} | coor_pinpoint = <!-- to specify exact location of coordinates (was coor_type) --> | coordinates_footnotes = <!-- for references: use <ref> tags --> <!-- location --> | subdivision_type = Country | subdivision_name = Japan | subdivision_type1 = Region | subdivision_name1 = Kantō | subdivision_type2 = Prefecture | subdivision_name2 = Chiba | subdivision_type3 = | subdivision_name3 = <!-- established --> | established_title = <!-- Settled --> | established_date = | founder = | named_for = <!-- seat, smaller parts --> | seat_type = <!-- defaults to: Seat --> | seat = <!-- government type, leaders --> | government_footnotes = <!-- for references: use <ref> tags --> | leader_party = | leader_title = Mayor | leader_name = | leader_title1 = | leader_name1 = <!-- etc., up to leader_title4 / leader_name4 --> <!-- display settings --> | total_type = <!-- to set a non-standard label for total area and population rows --> | unit_pref = <!-- enter: Imperial, to display imperial before metric --> <!-- area --> | area_magnitude = <!-- use only to set a special wikilink --> | area_footnotes = <!-- for references: use <ref> tags --> | area_total_km2 = 146.38 | area_land_km2 = | area_water_km2 = | area_water_percent = | area_note = <!-- elevation --> | elevation_footnotes = <!-- for references: use <ref> tags --> | elevation_m = <!-- population --> | population_footnotes = <!-- for references: use <ref> tags --> | population_total = 50321 | population_as_of = November 1, 2020 | population_density_km2 = auto | population_est = | pop_est_as_of = | population_demonym = <!-- demonym, ie. Liverpudlian for someone from Liverpool --> | population_note = <!-- time zone(s) --> | timezone1 = Japan Standard Time | utc_offset1 = +9 | timezone1_DST = | utc_offset1_DST = <!-- postal codes, area code --> | postal_code_type = | postal_code = | area_code_type = <!-- defaults to: Area code(s) --> | area_code = <!-- blank fields (section 1) --> | blank_name_sec1 = Symbols | blank_info_sec1 = &nbsp; | blank1_name_sec1 = • Tree | blank1_info_sec1 = ''Cryptomeria'' | blank2_name_sec1 = • Flower | blank2_info_sec1 = Chrysanthemum | blank3_name_sec1 = • Bird | blank3_info_sec1 = Japanese bush-warbler | blank4_name_sec1 = | blank4_info_sec1 = | blank5_name_sec1 = | blank5_info_sec1 = | blank6_name_sec1 = | blank6_info_sec1 = | blank7_name_sec1 = | blank7_info_sec1 = <!-- blank fields (section 2) --> | blank_name_sec2 = Phone&nbsp;number | blank_info_sec2 = 0475-80-1112 | blank1_name_sec2 = Address | blank1_info_sec2 = 296 Maidai, Sanmu-shi, Chiba-ken 289-1392 <!-- website, footnotes --> | website = {{Official|1=http://www.city.sammu.lg.jp/}} | footnotes = }} thumb|right|260px|Hasunuma Seaside Park {{Nihongo|'''Sanmu'''|山武市|Sanmu-shi}} is a city located in Chiba Prefecture, Japan. {{As of|2020|11|01}}, the city had an estimated population of 50,321 in 22,397 households and a population density of {{convert|340|pd/sqkm}}.<ref name="Sanmu-hp">{{cite web |url=https://www.city.sammu.lg.jp |title= Sanmu city official statistics|location= Japan|language= ja}}</ref> The total area of the city is {{convert|146.38|sqkm|sqmi}}.

==Geography== Sanmu is located in the northeastern part of Chiba prefecture, about {{convert|30|km}} from the prefectural capital of Chiba and about {{convert|60 to 70|km}} from the center of Tokyo. It is included in the urban employment area of Tokyo metropolis. Most of the city is located in the flatlands of the Kujūkuri Plain, which runs from the center to the south of Kujūkuri Beach, one of Japan's leading sandy beaches, and faces the Pacific Ocean for about {{convert|8|km}}.

===Surrounding municipalities=== Chiba Prefecture *Kujūkuri *Shibayama *Tōgane *Tomisato *Yachimata *Yokoshibahikari

===Climate=== Sanmu has a humid subtropical climate (Köppen ''Cfa'') characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Sanmu is 14.8&nbsp;°C. The average annual rainfall is 1550&nbsp;mm with September as the wettest month. The temperatures are highest on average in August, at around 25.9&nbsp;°C, and lowest in January, at around 4.8&nbsp;°C.<ref>[https://en.climate-data.org/asia/japan/chiba/sanmu-1068233/ Sanmu climate data]</ref>

==Demographics== Per Japanese census data,<ref>[https://www.citypopulation.de/php/japan-chiba.php Sanmu population statistics]</ref> the population of Sanmu peaked around the year 2000 and has declined since.

{{Historical populations | 1950 | 51,032 | 1960 | 46,055 | 1970 | 42,377 | 1980 | 43,954 | 1990 | 50,692 | 2000 | 60,614 | 2010 | 56,089 | 2020 | 48,444 |align = none | footnote = }}

==History== The area of Sanmu was part of ancient Kazusa Province. The city of Sanmu was established on March 27, 2006, from the merger of the towns of Sanbu, Matsuo and Narutō, and the village of Hasunuma (all from Sanbu District). The ''kanji'' for the city name are the same as for the former town of Sanbu, but is pronounced differently. Sanmu was damaged by a tsunami as a result of the 2011 Tōhoku earthquake and tsunami, with 43 buildings destroyed and 438 buildings partially destroyed, but with only one fatality.

==Government== Sanmu has a mayor-council form of government with a directly elected mayor and a unicameral city council of 20 members. Sanmu contributes one member to the Chiba Prefectural Assembly. In terms of national politics, the city is part of Chiba 11th district of the lower house of the Diet of Japan.

==Economy== Due to mixed plantings of Japanese red pine, Japanese cypress, and Japanese cedar, Sanmu was a center of wood production until 1923 at the end of the Taishō period. Many in the town remain active in the woodworking and carpentry trade. Small-scale agriculture in Sanmu produces a variety of fruits and vegetables, but the town is noted for carrots, watermelon, peanuts.<ref>{{cite encyclopedia | encyclopedia = Nihon Daihyakka Zensho (Nipponika) (日本大百科全書(ニッポニカ) "Large Encyclopedia of Japan (Nipponika)")| title = Sanbu-machi | url = http://rekishi.jkn21.com/ | access-date = 2011-12-04 | year = 2011 | publisher = Netto Adobansusha| location = Tokyo}}</ref> The town also attracts tourists to its numerous strawberry farms.<ref>{{Cite web |url=http://www.sammukanko.jp/fruitage-all/ |title=観光イチゴ園 |access-date=2011-12-04 |archive-date=2018-08-30 |archive-url=https://web.archive.org/web/20180830133915/http://sammukanko.jp/fruitage-all/ |url-status=dead }}</ref> Sanmu serves as a bedroom community for nearby Chiba and Tokyo, and housing development continues in the city.<ref>{{cite encyclopedia | encyclopedia = Dijitaru daijisen (デジタル大辞泉 "Digital Dictionary") | title = Sanmu-shi | url = http://rekishi.jkn21.com/ | access-date = 2011-11-09 | year = 2011 | publisher = Netto Adobansusha | location = Tokyo | url-status = dead | archive-url = https://web.archive.org/web/20070825113418/http://rekishi.jkn21.com/ | archive-date = 2007-08-25 }}</ref>

==Education== Sanmu has 13 public elementary schools and six public middle schools operated by the city government, and two public high schools operated by the Chiba Prefectural Board of Education

==Transportation == ===Railway=== 20px JR EastSōbu Main Line *{{STN|Hyūga|x}} - {{STN|Narutō|x}} - {{STN|Matsuo|x|Chiba}} 20px JR EastTōgane Line *{{STN|Narutō|x}}

===Highway=== * {{jct|country=JPN|Exp|CA}} * {{jct|country=JPN|Exp|C4}} * {{jct|country=JPN|Exp|E82}} * {{jct|country=JPN|Route|126}}

==Noted people from Sanmu== *Kumiko Asō, actress *Itō Sachio, Writer *Aoi Yuki, actress

== Gallery == <gallery> File:Kujyūkuri-Beach01.JPG|Aerial view of Sanmu and Kujūkuri Beach File:Chiba-r111.JPG|Street view of Sanmu File:Naruto Sta. reform.jpg|Narutō Station File:Choshoji hondo 2.jpg|Hondō of Fudō-in Chōshō-ji File:Choshoji niomon.jpg|Niōmon of Fudō-in Chōshō-ji </gallery>

== References == {{reflist}}

==External links== {{commons category|Sanmu, Chiba}} *[http://www.city.sammu.lg.jp/ Official Website] {{in lang|ja}}

{{Chiba}} {{Authority control}}

Category:Sanmu Category:Cities in Chiba Prefecture Category:Populated coastal places in Japan