Tongguan has an area of 90.3 km2 (34.9 sq mi) with a population of 50 thousand, its administrative centre is at Huacheng village.

[1] Tongguan is located on the eastern bank of Xiangjiang River in the northern part of Wangcheng District.

The unearthed earthenwares at Mawangdui proved that at latest Tongguan started to produce potteries in the western Han periods (206 BC–9 AD).

What above-mentioned is a strong evidence, as once a trade-exported port and centre of pottery production, the place of Tongguan played an important role in the history of China or Hunan.

The Tongguan pottery firing technology was selected into the list of state-level intangible cultural heritage.