Leiyang (simplified Chinese: 耒阳; traditional Chinese: 耒陽) is a county-level city and the third most populous county-level division in Hunan Province, China. Leiyang is under the administration of the prefecture-level city of Hengyang. Located on the south of the province, the city is bordered to the north by Hengnan County, to the west by Changning City, to the south by Guiyang and Yongxing counties, to the east by Anren County. The city has six subdistricts, 19 towns and five townships under its jurisdiction, the government seat is Caizichi Subdistrict.
The gross domestic product of Leiyang City in 2017 was 47,315 million yuan (7,001 million US dollars). Of this total, the value added of the primary industry was 7,100 million yuan (1,050 million US dollars), that of the secondary industry was 16,321 million yuan (2,415 million US dollars), and that of the tertiary industry was 23,894 million yuan (3,535 million US dollars). The value added of the primary industry accounted for 15.01 percent of the GDP; that of the secondary industry accounted for 34.49 percent; and that of the tertiary industry accounted for 50.50 percent. The per capita GDP in 2017 was 40,708 yuan (6,023 US dollars).
Leiyang is a center of paper production. Other raw materials produced in the area today include kaolin, white marble, and "heavy calcium carbonate". Some of the newer large homes in Leiyang were built by drillers working in Shenzhen. Leiyang's resources include large reserves of kaolin (a a clay mineral good for making paper), abundant coal resources, reserves of anthracite forecast close to 10 million tons, forest fir, pine, bamboo, tea.
Leiyang has a population of over 1,413,913 people.