Zhang Desheng () (October 1909 – March 4, 1965) also known as Zhang Shide (), was a People's Republic of China politician.
 He was born in Yulin, Shaanxi.
 He was Communist Party of China Committee Secretary of Gansu (1949–1954) and Shaanxi (1954–1965).
 He died in office in Xi'an.
Jing Yuexiu, 井岳秀, September 6, 1878–February 1, 1936) was a warlord from Shaanxi during the Warlord Era.
 He was born in what is now Tongchuan, Shaanxi on September 6, 1878.
 His whole life was spent in the army, and ruled Shaanxi from the city of Yulin for 23 years.
 He was called "榆林王" or "the Yulin king" because of his major base at Yulin, though he was much more powerful and actually controlled most of Shaanxi for most of his reign.
 He died of an accidental self-inflicted gunshot wound February 1, 1936.
Tongjiang () is a city of 160,000 in eastern Heilongjiang province, People's Republic of China, located at the confluence and on the right banks of the Songhua and Amur Rivers, the latter which marks the border with Russia.
 Administratively it is a county-level city of Jiamusi.
Yulin () is a prefecture-level city in the Shanbei region of Shaanxi province, China, bordering Inner Mongolia to the north, Shanxi to the east, and Ningxia to the west.
 It has an administrative area of 43578 km2 and a population of 3,380,000.
China National Highway 221 (G221) runs from Harbin to Tongjiang, in Heilongjiang Province.
 It is 668 kilometres in length and runs northeast from Harbin towards Tongjiang.
Yulin Yuyang Airport () (IATA: UYN, ICAO: ZLYL) is an airport serving the city of Yulin in Shaanxi Province, China.
 The airport opened in March 2008, replacing the old Yulin Xisha Airport.
 The airport is located 15.5 km from the urban area of Yulin.
 Its construction started in 2005 and it was classified as a 4C grade civil regional airport.
Yulin Xisha Airport is a former airport in Yulin, Shaanxi China.
 The official Yulin airport codes were changed to the new Yulin Yuyang Airport when the latter was opened in March 2008.
Shenmu () is a county-level city in the north of Shaanxi province, China.
 Under the administration of Yulin City, Shenmu is endowed with plentiful resources, especially coal and it located in the northwest of Shaanxi Provence.
 It is the richest county in Shaanxi Provence because of the abundant coal.
The Harbin–Tongjiang Expressway (), commonly referred to as the "Hatong Expressway" () is an expressway that connects the cities of Harbin, Heilongjiang, China, and Tongjiang, a county-level city in Jiamusi, Heilongjiang.
 It is completely in Heilongjiang Province.
Yulin University is a Chinese university.
 It is located in Yulin in Shaanxi Province, China.

Question: Which city in China has a larger population, Tongjiang, Heilongjiang, or Yulin, Shaanxi?
Answer: Yulin