# Hekou Yao Autonomous County

The Hekou Yao Autonomous County (simplified Chinese: 河口瑶族自治县; traditional Chinese: 河口瑤族自治縣; pinyin: Hékǒu Yáozú Zìzhìxiàn) is an autonomous county in the southern part of the Yunnan province of China. It is part of the Honghe Hani and Yi Autonomous Prefecture and borders the northern Vietnamese city of Lào Cai.

## Administrative divisions

At present, Hekou Yao Autonomous County has 2 towns, 3 townships and 1 ethnic township.

### 2 towns

* Hekou (河口镇)
* Nanxi (南溪镇)

### 3 townships

* Laofanzhai (老范寨乡)
* Yaoshan (瑶山乡)
* Lianhuatan (莲花滩乡)

### 1 ethnic township

* Qiaotou Miao and Zhuang Ethnic Township (桥头苗族壮族乡)

## Ethnic groups

The Hekou County Gazetteer (1994) lists the following ethnic groups.
* Yao
** Hongtou Yao 红头谣 (autonyms: Mian 棉, Meng 孟, Dongban Heiyou 洞斑黑尤, meaning "Yao person")
** Landian Yao 兰綻瑶 (autonyms: Xiu 秀, Xiumen 秀门, Men 门, Houmen 喉闷)
** White Yao 白线瑶 (autonyms: Heiyou Meng 黑尤蒙, Gengmen 耿闷, Jingdi Men 敬底闷, meaning Mountain Top Yao person 山上瑶人
** Sha Yao 沙瑶 (autonyms: Heiyou Meng 黑尤蒙, Gengwan Men 耿晚闷, meaning Mountain Bottom Yao person 山底瑶人
* Zhuang
* Miao
* Yi
* Dai
* Buyi
* Han

## Climate

Climate data for Hekou, elevation 138 m (453 ft), (1991–2020 normals, extremes 1991–present) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 31.6 (88.9) | 36.7 (98.1) | 37.7 (99.9) | 39.7 (103.5) | 42.9 (109.2) | 40.5 (104.9) | 41.0 (105.8) | 39.1 (102.4) | 38.2 (100.8) | 35.6 (96.1) | 33.7 (92.7) | 31.2 (88.2) | 42.9 (109.2) |
| Mean daily maximum °C (°F) | 20.6 (69.1) | 22.7 (72.9) | 25.9 (78.6) | 29.7 (85.5) | 32.5 (90.5) | 33.6 (92.5) | 33.3 (91.9) | 33.2 (91.8) | 32.2 (90.0) | 29.3 (84.7) | 26.2 (79.2) | 22.2 (72.0) | 28.4 (83.2) |
| Daily mean °C (°F) | 16.5 (61.7) | 18.3 (64.9) | 21.3 (70.3) | 24.7 (76.5) | 27.3 (81.1) | 28.7 (83.7) | 28.4 (83.1) | 28.0 (82.4) | 26.9 (80.4) | 24.5 (76.1) | 21.0 (69.8) | 17.4 (63.3) | 23.6 (74.4) |
| Mean daily minimum °C (°F) | 14.2 (57.6) | 15.7 (60.3) | 18.5 (65.3) | 21.5 (70.7) | 23.7 (74.7) | 25.3 (77.5) | 25.3 (77.5) | 24.8 (76.6) | 23.8 (74.8) | 21.7 (71.1) | 18.1 (64.6) | 14.7 (58.5) | 20.6 (69.1) |
| Record low °C (°F) | 3.5 (38.3) | 4.5 (40.1) | 9.8 (49.6) | 11.6 (52.9) | 17.0 (62.6) | 20.1 (68.2) | 21.8 (71.2) | 21.4 (70.5) | 17.3 (63.1) | 13.5 (56.3) | 8.6 (47.5) | 2.5 (36.5) | 2.5 (36.5) |
| Average precipitation mm (inches) | 34.6 (1.36) | 32.2 (1.27) | 69.2 (2.72) | 114.5 (4.51) | 180.7 (7.11) | 212.3 (8.36) | 323.4 (12.73) | 362.8 (14.28) | 213.5 (8.41) | 109.9 (4.33) | 49.0 (1.93) | 31.9 (1.26) | 1,734 (68.27) |
| Average precipitation days (≥ 0.1 mm) | 8.9 | 9.2 | 10.7 | 15.0 | 17.6 | 18.5 | 20.8 | 19.9 | 15.4 | 12.8 | 7.6 | 6.2 | 162.6 |
| Average relative humidity (%) | 84 | 81 | 80 | 80 | 79 | 81 | 84 | 84 | 84 | 84 | 84 | 84 | 82 |
| Mean monthly sunshine hours | 71.6 | 77.4 | 97.1 | 139.3 | 173.5 | 153.5 | 151.3 | 168.7 | 157.1 | 120.3 | 118.3 | 91.6 | 1,519.7 |
| Percent possible sunshine | 21 | 24 | 26 | 37 | 42 | 38 | 37 | 43 | 43 | 34 | 36 | 27 | 34 |
| Source: China Meteorological Administration ||||||||||||||

## Industrial Park

* Hekou Border Economic Cooperation Zone
First established in 1992, Hekou Border Economic Cooperation Zone is a border zone approved by State Council in China to promote trade between China and Vietnam. It has a planned area of 4.02 square kilometers. The zone implemented several policies to serve its clients in China from various industries and sectors including investment, trade, finance, taxation, immigration, etc.

## Transport

There are bus route to all destinations within Yunnan, including an overnight sleeper service from Kunming. More destinations can be reached by transfer in Mengzi.

### Highway

There is a highway linking Xinjie, a town in Hekou County, with Lào Cai Province in northern Vietnam. It opened in February 2008 and marked the completion of the first highway linking Yunnan with a neighboring country from the Association of Southeast Asian Nations (ASEAN).
The 56.3 kilometer, 3.58 billion yuan Xinhe highway is one of the numerous infrastructure projects that will increase connectivity between Yunnan and ASEAN and facilitate the transport of people and goods between the two regions, which are expecting to see a major increase in tourism and trade in the coming years.

### Railway

The narrow-gauge Yunnan–Vietnam Railway, connecting Kunming with the port of Haiphong, opened by the French in 1910, crosses the China-Vietnam border in Hekou.
In December 2014, the last section (Mengzi–Hekou) of the new standard-gauge Kunming-Hekou Railway was completed. It ends at the new Hekou North Railway Station, which is also connected by narrow-gauge tracks to the old railway, in order to facilitate cargo movement between China and Vietnam.
On 20 February 2025 the Vietnamese parliament approved an $8 billion railroad investment to upgrade under Xi Jinping's Belt and road initiative the old French-built Kunming–Haiphong railway, which serves the Chinese border city Hekou Yao, Lao Cai, Hanoi and Haiphong.