Huantai County is affiliated to Zibo City, Shandong Province, located in the middle of Shandong mountain and Lubei plain combined zone, located in the north of the middle of Shandong Province, the north of Zibo City, between 36°51 '50 "-37°06' 00" north longitude 117°50 '00 "-118°10' 40", north adjacent to Boxing and Gaoqing two counties, east of Linzi District, South and Zhangdian District, Zhoucun District adjacent, west and Zouping City bordering. The total area of the county is 509 square kilometers. By 2021, Huantai County has jurisdiction over 2 subdistricts and 7 towns. According to the seventh census data, as of midnight on November 1, 2020, Huantai County's permanent population is 489,479 people.

Huantai County is low in the north and high in the south, tilted from southwest to northeast, slightly microwave-like. Huantai County is located in the warm temperate continental monsoon climate. As of 2015, Huantai County has 1 national AAAA level tourism zone, 2 national AAA level tourism zones and 1 Chinese historical and cultural town.

In 2021, Huantai County's GDP was 67.40 billion yuan, with a year-on-year growth of 10.8% and a two-year average growth of 4.1%.

Huantai has been ranked among the top 100 counties in China for seven consecutive years, and has won the honorary titles of "Advanced County of Science and Technology Progress in China", "Advanced County of Culture in China", "Ecological Demonstration County in China" and "Civilized County in China". In December 2017, it was selected as one of China's top 100 Industrial counties. In October 2018, it was selected as one of the top 100 counties and cities with investment potential, one of the top 100 counties and cities with green development, one of the top 100 counties and cities with science and technology innovation, and one of the top 100 counties and cities with new urbanization quality.