Kendall County, Illinois Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Oswego137,85734,7242.11%2,49115.2Village
Yorkville225,69721,6814.07%1,28520.0City
Montgomery322,46120,4352.31%2,3389.6Village
Plano412,93111,9102.01%1,4409.0City
Crystal Lawns51,8441,943-0.11%2,7980.7CDP
Newark69899760.3%8801.1Village
Millington76226180.16%8790.7Village
Millbrook82812770.36%1521.8Village

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Kendall County, Illinois?

Oswego is the largest city in Kendall County.

What is the smallest city in Kendall County, Illinois?

Millbrook is the smallest city in Kendall County.

How many cities are in Kendall County?

There are 8 cities in Kendall County, Illinois.

Frequently Asked Questions