| Longzhou County | |
| Settlement Type: | County |
| Pushpin Map: | Guangxi |
| Pushpin Label: | Longzhou |
| Pushpin Map Caption: | Location in Guangxi--> |
| Coordinates: | 22.345°N 106.8542°W |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Region |
| Subdivision Name1: | Guangxi |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Chongzuo |
| Subdivision Type3: | Township-level divisions |
| Seat Type: | County seat |
| Seat: | Longzhou Town |
| Unit Pref: | Metric |
| Area Total Km2: | 2317.8 |
| Population Total: | 232,068 |
| Population As Of: | 2020 |
| Population Density Km2: | auto |
| Timezone1: | China Standard |
| Utc Offset1: | +8 |
| Postal Code Type: | Postal code |
Longzhou County (; Zhuang: Zhuang; Chuang: Lungzcouh Yen) is a county of southwestern Guangxi, China, bordering Cao Bằng province, Vietnam. It is under the jurisdiction of the prefecture-level city of Chongzuo.
Longzhou lies in a circular valley at the junction of the Xun and Gui rivers.
Longzhou has a monsoon-influenced humid subtropical climate (Köppen Cwa), with short, mild winters, and long, very hot and humid summers. Winter begins dry but becomes progressively wetter and cloudier. Spring is generally overcast and often rainy, while summer continues to be rainy though is the sunniest time of year. Autumn is sunny and dry. The monthly 24-hour average temperature ranges from 14.7°C in January to 29.2°C in July, and the annual mean is 23.12°C. The annual rainfall is just above 1300mm, a majority of which is delivered from June to August. With monthly percent possible sunshine ranging from 16% in February and March to 50% in September, the county receives 1,583 hours of bright sunshine annually.
Longzhou County has 5 towns and 7 townships under its jurisdiction.[1]