Ganzhou (Chinese: 赣州; pinyin: Gànzhōu), formerly romanized as Kanchow, is a prefecture-level city in southern Jiangxi, China, bordering Fujian to the east, Guangdong to the south, and Hunan to the west. Its administrative seat is at Zhanggong District. Its population was 8,361,447 at the 2010 census whom 1,977,253 in the built-up (or "metro") area made of Zhanggong and Nankang, and Ganxian largely being urbanized.
Between 1939 and 1945, Chiang Ching-kuo was appointed by the Government of the Republic of China as commissioner of Gannan Prefecture (贛南), then the name of the surrounding regions of Ganzhou. There he banned smoking, gambling and prostitution, studied governmental management, allowed for economic expansion and a change in social outlook. His efforts were hailed as a miracle in the political war in China, then coined as the "Gannan New Deal" (贛南新政). During his time in Gannan, from 1940 he implemented a "public information desk" where ordinary people could visit him if they had problems, and according to records, Chiang Ching-kuo received a total of 1,023 people during such sessions in 1942. In regards to the ban on prostitution and closing of brothels, Chiang implemented a policy where former prostitutes became employed in factories. Due to the large number of refugees in Ganzhou as a result from the ongoing war, thousands of orphans lived on the street; in June 1942, Chiang Ching-kuo formally established the Chinese Children's Village (中華兒童新村) in the outskirts of Ganzhou, with facilities such as a nursery, kindergarten, primary school, hospital and gymnasium.
Ganzhou is a large city covering the southern third of Jiangxi, with an area of 39,400 square kilometres (15,200 sq mi). More than 70% of its administrative area is forested, and over 83% is also mountainous. Several of the major tributaries of the Gan River, Ganzhou's namesake, join at a confluence in the center of the city.
Ganzhou has a humid subtropical climate (Köppen Cfa) affected by the East Asian monsoon, with long, humid, very hot summers and cool and drier winters with occasional cold snaps, featuring some of the highest summertime temperatures nationally outside of the Turpan Depression in Xinjiang. The monthly 24-hour average temperature ranges from 8.2 °C (46.8 °F) in January to 29.4 °C (84.9 °F) in July, with an annual average of 19.42 °C (67.0 °F). The average annual precipitation is 1,460 mm (57 in). With monthly percent possible sunshine ranging from 20% in March to 62% in July, the city receives 1,778 hours of bright sunshine annually. Winter begins somewhat sunny and dry but becomes progressively wetter and cloudier; spring begins especially gloomy, and from March to June each of the months averages more than 180 mm (7.1 in) of rainfall. After the heavy rains subside in June, summer is especially sunny. Autumn is warm and relatively dry.