What is Tianjin?
{{Infobox settlement |name = {{raise|0.2em|Tianjin}} |official_name = {{longitem|style=font-size:105%;|{{nobold|{{lang|zh-cn|天津市}}}} · Municipality of Tianjin}} |native_name = {{lower|0.1em|{{nobold|{{lang|zh|天津}}}}}} |settlement_type = [[Direct-controlled municipality of the People's Republic of China|Municipality]] |total_type = Municipality |image_skyline = Tianjin montage.jpg |image_caption = Clockwise from top: Jinwan Square, Tianjin Financial Center and Hai River, Xikai Church, Panorama of downtown Tianjin, Tianjin Railroad Station, Tianjin Eye |image_map = Tianjin in China (+all claims hatched).svg |map_caption = Location of Tianjin Municipality within China |image_map1 = |map_caption1 = |subdivision_type = Country |subdivision_name = [[People's Republic of China]] |established_title = Settled |established_date = ca. 340 BC |parts_type = Divisions<br />&nbsp;- [[County-level division|County-level]]<br />&nbsp;- [[Administrative divisions of the People's Republic of China#Township level|Township-<br />level]] |parts = <br />[[List of administrative divisions of Tianjin|13 districts, three counties]]<br />240 towns and villages |government_type = [[Direct-controlled municipality of the People's Republic of China|Municipality]] |leader_title = [[Party chief of the Communist Party of China|CPC Secretary]] |leader_name = [[Sun Chunlan]] |leader_title1 = Mayor |leader_name1 = [[Huang Xingguo]] |leader_title2 = Congress Chairman |leader_name2 = [[Xiao Huaiyuan]] |leader_title3 = Conference Chairman |leader_name3 = [[He Lifeng]] |area_total_km2 = 11760 |area_land_km2 = |area_water_km2 = |area_urban_km2 =174.9 |area_metro_km2 =5606.9 |area_footnotes = |elevation_m = |elevation_footnotes = |population_total = 12938224 |population_as_of = 2010 census |population_footnotes = |population_density_km2 = auto |population_urban = 4342770 |population_metro = 10290987 |population_density_urban_km2 = auto |population_density_metro_km2 = auto |population_demonym = Tianjinese<br>Tianjiner |timezone = [[China Standard Time|China