Luannan County, a county directly under the financial management of Hebei Province, is subordinate to Tangshan City, Hebei Province. It is located in the northeast of Hebei Province, southeast of Tangshan City, east of Leting County, west of Fengnan District, southwest of Caofeidian District, south of Bohai Sea, and north of Luanzhou City, with a total area of 1482.6 square kilometers. In 2021, Luannan County will have a permanent population of 505200. 28 ethnic minorities, accounting for 3.15% of the total population of the county. As of October 2021, Luannan County has jurisdiction over 1 street and 16 towns. The county government is located at No. 6 Chongfa Street.

Luannan County is named Luannan County because it is located in the south of Luannan County. Shang, the county belongs to the isolated bamboo country. In the 28th year of the Kaiyuan era of the Tang Dynasty (740), Lu Long set up Macheng County. In 1983, Tangshan was abolished and the system of city governing county was implemented. Luannan County was returned to Tangshan. Luannan County is the hometown of Chinese folk culture and art, the town of revolutionary cultural relics protection and utilization, the nominated city of national civilized city, the hometown of Pingju, and the hometown of Leting Dagu.

In 2021, the gross regional product of Luannan County will be 31.03 billion yuan, an increase of 6% over the previous year. Among them, the added value of the primary industry was 9.55 billion yuan, and the added value of the secondary industry was 9.68 billion yuan; The added value of the tertiary industry is 11.8 billion yuan, and the proportion of the three industries is 30.8:31.2:38.0