Pekin is a city located in Tazewell County Illinois. It is also the county seat of Tazewell County. With a 2020 population of 31,633, it is the 59th largest city in Illinois and the 1240th largest city in the United States . Pekin is currently declining at a rate of -0.65% annually and its population has decreased by -7.22% since the most recent census, which recorded a population of 34,094 in 2010. Pekin reached it's highest population of 34,044 in 2012. Spanning over 15 miles, Pekin has a population density of 2,168 people per square mile.
The average household income in Pekin is $61,567 with a poverty rate of 14.94%. The median rental costs in recent years comes to $659 per month, and the median house value is $106,200. The median age in Pekin is 39.7 years, 36.7 years for males, and 42.9 years for females.