Kendall County Flag

Kendall County

State:
Illinois
County Seat:
Yorkville

Kendall County's estimated 2026 population is 147,815 with a growth rate of 1.61% 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 28.12% since that time.

147,815
Total Population
462
Population Density (mi²)
14
Population Rank (State)
2.3K 1.61%
Annual Population Growth

Kendall County Population

Demographics

Economics and Income Statistics