
Pekin
- County:
- Tazewell County
- County Seat:
- Yes
- Area (mi²):
- 15.72
- State:
- Illinois
Pekin is a city located in Tazewell County, Illinois. Pekin has a 2025 population of 30,756. It is also the county seat of Tazewell County. Pekin is currently declining at a rate of -0.6% annually and its population has decreased by -2.92% since the most recent census, which recorded a population of 31,681 in 2020.
The average household income in Pekin is $74,964 with a poverty rate of 13%. The median age in Pekin is 41.3 years: 38.6 years for males, and 45 years for females.