Kendall County Flag

Kendall County

State:
Illinois
County Seat:
Yorkville

Kendall County's estimated 2026 population is 149,055 with a growth rate of 2.01% in the past year according to the most recent United States census data. Kendall County is the 14th largest county in Illinois. The 2010 population was 115,369 and has seen a growth of 29.2% since that time.

149,055
Total Population
466
Population Density (mi²)
14
Population Rank (State)
2.9K 2.01%
Annual Population Growth

Kendall County Population

Demographics

Economics and Income Statistics