| Jainca | |
| Native Name: | Chinese: 尖扎县 · |
| Other Name: | Chentsa, Jainzha |
| Settlement Type: | County |
| Pushpin Map: | China Qinghai |
| Pushpin Label: | Jainca |
| Pushpin Map Caption: | Location of the seat in Qinghai |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Qinghai |
| Subdivision Type2: | Autonomous prefecture |
| Subdivision Name2: | Huangnan |
| Seat Type: | County seat |
| Seat: | Markhu Thang |
| Area Total Km2: | 1714 |
| Elevation M: | 1990 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 58173 |
| Population Density Km2: | auto |
| Population Density Urban Km2: | auto |
| Timezone: | China Standard |
| Utc Offset: | +8 |
| Coordinates: | 35.9383°N 102.0333°W |
| Postal Code Type: | Postal code |
| Postal Code: | 811200 |
| Area Code: | 0973 |
| Order: | st |
| S: | 尖扎县 |
| T: | 尖扎縣 |
| P: | Jiānzhā Xiàn |
| Wylie: | gcan tsha rdzong |
| Zwpy: | Jainca Zong |
Jainca County, Chentsa County or Jainzha County (;) is a county in Huangnan Tibetan Autonomous Prefecture in Qinghai Province, China, to Tibetans in the area known as Malho Prefecture, part of Amdo. There are six townships, three towns and a total of 79 administrative villages in Chentsa county. The county has an area of 1714 square kilometres and a population of ~50,000 (2001), 67% Tibetan. The county seat is the town of Markhu Thang.
Jainca County is made up of 3 towns and 6 townships:
| Name | Simplified Chinese | Hanyu Pinyin | Tibetan | Wylie | Administrative division code | |
|---|---|---|---|---|---|---|
| Towns | ||||||
| Markhu Thang Town (Markutang, Magitang, Maketang) | Chinese: 马克堂镇 | 632322100 | ||||
| Kangyang Town (Dongna) | Chinese: 康扬镇 | 632322101 | ||||
| Kamra Town (Kanbula) | Chinese: 坎布拉镇 | 632322102 | ||||
| Townships | ||||||
| Gya'gya Township (Jiajia) | Chinese: 贾加乡 | 632322200 | ||||
| Cozhug Township (Cuozhou) | Chinese: 措周乡 | 632322201 | ||||
| Nangra Township (Angla) | Chinese: 昂拉乡 | 632322202 | ||||
| Nangkog Township (Nengke) | Chinese: 能科乡 | 632322203 | ||||
| Dêngso Township (Dangshun) | Chinese: 当顺乡 | 632322204 | ||||
| Jaincatang Township (Jianzhatan) | Chinese: 尖扎滩乡 | 632322205 | ||||
Jainca County has a cold semi-arid climate (Köppen BSk) and, at, on July 24, 2000.