Yima, Henan

Yima
义马市
Yima
Location in Henan
Coordinates: 34°44′49″N 111°52′30″E / 34.74694°N 111.87500°E / 34.74694; 111.87500
CountryPeople's Republic of China
ProvinceHenan
Prefecture-level citySanmenxia
Area
100.5 km2 (38.8 sq mi)
  Metro
1,462.4 km2 (564.6 sq mi)
Population
 (2018 estimation)
147,800
  Density1,500/km2 (3,800/sq mi)
  Metro
498,500
  Metro density340/km2 (880/sq mi)
Time zoneUTC+8 (China Standard)
Postal code
472300
Websitewww.yima.gov.cn

Yima (simplified Chinese: 义马; traditional Chinese: 義馬; pinyin: Yìmǎ) is a county-level city in Henan, China. It is under the jurisdiction of Sanmenxia, located in the west of Henan province. Since ancient times, it had been a key stopover between Luoyang and Changan. In the 20th century, it became a wealthy city thanks to the mining and processing of coal.

The history of Yima's establishment could be traced back to the Xin'an county of Qin dynasty. In 1981, it became the first county-level city in Henan. It was originally under the jurisdiction of Luoyang, since 1986, it has been under the jurisdiction of Sanmenxia. It has been listed several times as one of China's top 100 counties in terms of basic economic competitiveness. It is the smallest city in China (112 square kilometers with a population of about 140,000).