tunchang is located in the north-central part of Hainan Island. It borders Ding 'an County and qionghai city in the east, Qiongzhong Li and Miao Autonomous County in the south and southwest, and Chengmai County in the northwest with Nandu River as the boundary. Geographical coordinates are 19 8'-19 37' north latitude and 19 45'-11 15' east longitude. The county is 55 kilometers long from north to south and 52 kilometers wide from east to west. The total area is 1232 square kilometers. At the end of 24, the registered population was 271,638; The data of non-agricultural

tunchang comes from Baidu map, and the final result is subject to Baidu map data.

the working population is 99597. The population density is 225 people/km2.

Tunchang is located at 19 8'-19 37' north latitude and 19 45'-115 15' east longitude. The terrain is high in the south and low in the north, and the middle is relatively flat. It belongs to hilly and semi-mountainous areas, and most areas are between 15 and 2 meters above sea level. Low hills account for 56.4% of the total area, high hills account for 28.3%, low mountains account for 4.9% and terraces account for 1.4%. The soil is mainly tropical brick soil. The land trend is low mountains, hills and terraces, which is conducive to the development of a variety of agricultural production and management. The county has a total land area of 123,151 hectares and cultivated land area of 35,47.5 hectares. At present, there are still 3 hectares of undeveloped land in the county.

there are 8 towns and 6 state farms in the county. The county's social economy is regional. Tunchang Economic Development Zone is divided into three areas: Sanfa Economic Development Zone, Mushe International Tourism and Holiday Development Zone and Emerging Industrial Development Zone. Sanfa Economic Development Zone is located in the suburb of the county, with a planned development area of 138 square kilometers. There are more than 1 factories in building materials, ceramics, food and daily chemical industries, as well as bee farms, chicken farms, breeding farms for breeding pigs and high-quality fruit bases. With sufficient water and electricity, smooth roads and beautiful environment, the area is an ideal place for business, commerce and residence. Mushe International Tourism and Holiday Development Zone is located in the south of Tunchang, 112km from Haiyu Middle Line, with a planned area of 2 square kilometers. The Muse Reservoir in the zone has a water surface of 5,mu. The peaks around the reservoir are connected, and the mountains and rivers are interdependent, with a pleasant climate. Hainan Maple Deer Farm in the zone is one of the eight scenic spots in Hainan, and the development potential of tourism in the zone is great. Xinxing Industrial Development Zone is located in Xinxing Town in the north of Tunchang County, covering an area of 18 square kilometers. The development zone has flat terrain, convenient roads, reasonable land price and abundant water resources. A hydropower station with large power generation has been built and connected with the whole province. The development zone plans to develop the building materials industry, mainly cement and building decoration materials, and ceramics, plastics, machinery, textiles and other industries.

according to statistics, the county's GDP in 2 was 95.1 million yuan, up 9.6% year-on-year, and its annual fiscal revenue was 65.37 million yuan, up 3.7% year-on-year. Agriculture is the main industry. In recent years, the secondary and tertiary industries have developed vigorously.

tunchang is a newly established county, whose predecessor was announced by the Party Committee of Qiongya District at the Second Executive Committee on February 17, 1948. It consists of the second district of Chengmai County (now Xichang Township) and the sixth district of Qiongshan County (now Xinxing Town, Datong Township, Tunchang Town, Huangling Township, Tengzhai Township and Nankun Town). On February 2, 1949, Dingxi Special Zone was established in Nanlv, Wupo, Fengmu, Beihai and Lingmen townships (equivalent to county-level organizational system). In May 195, Dingxi Special Zone was merged into Xinmin County. Because of the same name as Xinmin County in Liaoning Province, in 1952, the State Council renamed Xinmin County in Hainan as "tunchang" in order to facilitate management. Tunchang Municipal People's Government is based in Tun Town. According to legend, Tunchang was originally a wasteland, and wars were frequent in the late Ming and early Qing Dynasties. People fleeing from the southeast coast of China fled to the south to cultivate wasteland, so as to prosper, hence the name "Tunchang".