Tazewell County is named after Littleton Tazewell, who was a United States Senator and later became Governor of Virginia. According to the 2017 Census of Agriculture, there were 857 farms in Tazewell County, spanning 304,475 acres, with an average farm size of 355 acres. The population of Tazewell County was 135,394 (based on 2010 census). Tazewell County’s temperatures range from 14°F during January to 86°F during July. Average monthly precipitation ranges from 1.50" during January to 4.17" during May. If you're looking for land for sale in Tazewell County, IL, check out Land Pro LLC's current listings below. If there are no current listings in Tazewell County, take a look at land for sale in neighboring Logan County, McLean County, Peoria County, and Woodford County. You can also view all the Illinois land offered for sale by Land Pro LLC.