Tongshan County, located in the southeast of Hubei Province, belongs to Xianning City and is an important part of Wuhan City Circle. The county borders Wuning County of Jiangxi Province in the southeast, Xiushui County in the south, Yangxin County in the east, Xianning City in the north and Chongyang County in the west.

According to the seventh census data, as of midnight on November 1, 2020, the permanent population of Tongshan County was 391,311.
Tongshan County has a total land area of 268,000 hectares. Tongshan County has jurisdiction over 8 towns, 4 townships and 1 administrative committee. There are 17 neighborhood committees and 172 village committees. County people's government resident Tongyang Town Yangdu Avenue 100.
In November 2016, Tongshan County was named the second batch of national all-region tourism demonstration zone by the National Tourism Administration. In March 2019, it was identified as the first batch of counties for the protection and utilization of revolutionary cultural relics. On April 29, 2019, the People's Government of Hubei Province decided to withdraw Tongshan County from the poverty-stricken county.

In 2020, the GDP of Tongshan County reached 13.357 billion yuan, the growth rate of which was 5.3% lower than the previous year at constant prices. The added value of the primary industry was 2.186 billion yuan, up 2.2% year on year; The added value of the secondary industry was 4.412 billion yuan, down 11.5% year on year; The value added of the tertiary industry was 6.76 billion yuan, down 2.5 percent year-on-year. The county's three industrial structure was adjusted from 13.8:36.6:49.6 in the previous year to 16.4:33.0:50.6, and the industrial added value accounted for 22.03% of GDP. Compared with the previous year, that of the primary industry in GDP increased by 1.15 percentage points, that of the secondary industry in GDP decreased by 2.53 percentage points, and that of the tertiary industry in GDP increased by 1.37 percentage points. In the tertiary industry, the value added of the financial industry, real estate industry and other service industries grew by 4.4 percent, 1.7 percent and 1.7 percent respectively. The added value of wholesale and retail, transportation and warehousing, postal services, and accommodation and catering industries fell by 11.7%, 15.7% and 20.6% respectively.