Question: As of the 2010 census, does Dongguan or Tongzhou District, Beijing have a larger population?
Context: Tongzhou District (Chinese:  通州區 ,  通州区 ,  "Tōngzhōu Qū"), formerly Tongzhou City, is one of three urban districts of Nantong in eastern China's Jiangsu province.  It was a county-level city under the administration of Nantong until 2010, when it became a district of Nantong.  As of 2010, Tongzhou had a population of 1,246,400. Elkhart is a city in Elkhart County, Indiana, United States.  The city is located 15 mi east of South Bend, Indiana, 110 mi east of Chicago, Illinois, and 150 mi north of Indianapolis, Indiana.  Elkhart has the larger population of the two principal cities of the Elkhart-Goshen Metropolitan Statistical Area, which in turn is part of the South Bend-Elkhart-Mishawaka Combined Statistical Area, in a region commonly known as Michiana.  The population was 50,949 at the 2010 census.  Despite the shared name, it is not the county seat of Elkhart County; that position is held by the city of Goshen, located about 10 mi southeast of Elkhart. Dongguan is a prefecture-level city in central Guangdong Province of South China.  Often considered the cultural capital of the Pearl River Delta, Dongguan borders the provincial capital of Guangzhou to the north, Huizhou to the northeast, Shenzhen to the south, and the Pearl River to the west.  It is part of the Pearl River Delta megacity with more than 44.78 million inhabitants at the 2010 census spread over nine municipalities (including Macao) across an area of 17,573 km2 .  Dongguan's city administration is considered especially progressive in seeking foreign direct investment.  Dongguan ranks behind only Shenzhen, Shanghai and Suzhou in exports among Chinese cities, with $65.54 billion in shipments.  It is also home to one of the world's largest, though largely empty, shopping malls, the New South China Mall.  The majority of the population speak Mandarin due to migrants from other parts of the country. Walpole is a small census-designated place (CDP) located within the much larger town (21 square miles in size) of Walpole in Norfolk County, Massachusetts, United States.  Walpole Town as it is called by the US Census Bureau, also includes a much larger population (24,070 in 2010).  The population of the Census Designated Place was 5,918 at the 2010 census. Beiyuan Subdistrict () is a subdistrict of Beijing and is located in Tongzhou District.  It covers an area of 8.7 square kilometers and is home to over 7 million registered inhabitants with local hukou.  Its floating population is estimated to be 6 million.  The current secretary of Beiyuan is Kong Weimin (孔维民). Woodinville is a city in King County, Washington, United States.  The population was 10,938 at the 2010 census.  It is part of the Seattle metropolitan area.  There is also a much larger population with Woodinville mailing addresses in adjacent unincorporated areas of King (Cottage Lake) and Snohomish (Maltby) counties.  Woodinville has waterfront parks on the Sammamish River, sweeping winery and brewery grounds, and densely wooded residential areas. Line 7 of the Beijing Subway () is a rapid transit rail line in Beijing.  It runs parallel and to the south of Line 1 and Batong Line, from the Beijing West Railway Station in Xuanwu District to Jiaohuachang (Coking Plant) in Tongzhou District.  Construction began in January 2010.  It started test runs in September 2014 with full operation beginning on December 28, 2014.  Like Line 6, Line 7 provides additional relief to the overcapacity Line 1 adding another east-west trunk line to the Beijing Subway network. The Yizhuang Line of the Beijing Subway (), formerly designated "Line L2", is a rapid transit line that connects the Yizhuang Industrial Park with Beijing's subway network.  The line is 23.23 km long with 14 stations, including six underground and eight on the surface.  It runs from Songjiazhuang, the current southern terminus of Line 5, Beijing Subway in Fengtai District to the Yizhuang Railway Station in Tongzhou District and passes through the southern Chaoyang and northern Daxing Districts.  Total investment for the line was estimated at ¥1.2 billion.  Construction began on December 8, 2007 and the line opened on December 30, 2010. Yanjiao () is a town under the administration of Sanhe City in central Hebei province, bordering Tongzhou District, Beijing across the Chaobai River to the west, located 35 km east of Tiananmen Square and 21 km west of Sanhe.  It has a population of 250,000, with long-term residents accounting for 147,000 and migrants taking the rest; 97.9% of the population is of Han ethnicity.  , it has 55 villages under its administration. Tongzhou District (, alternate spellings "Tungchow" "Tungchou" (T'ung-chou), or Tong County during 1914-1997) is a district of Beijing.  It is located in southeast Beijing and considered the eastern gateway to the nation's capital.  Downtown Tongzhou itself lies around 20 km east of central Beijing, at the northern end of the Grand Canal (on the junction between the Tonghui Canal and the Northern Canal) and at the easternmost end of Chang'an Avenue.  The entire district covers an area of 906 km2 , or 6% of Beijing's total area.  It had a population of 673,952 at the 2000 Census, and has seen significant growth and development since then, growing to a population of 1,184,000 at the 2010 Census.  The district is subdivided into 4 subdistricts, 10 towns, and 1 ethnic township.
Answer: Dongguan