Knox 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
Galesburg128,85829,944-0.93%1,62517.8City
Abingdon22,8192,945-1.12%1,9781.4City
Knoxville32,7892,891-0.92%1,1872.4City
East Galesburg4733761-0.95%5371.4Village
Wataga5708740-1.12%8540.8Village
Oak Run66944681.46%1624.3CDP
Oneida7668696-1.04%8750.8City
Yates City8616642-1.12%1,2490.5Village
Williamsfield9546569-1.09%4441.2Village
Altona10442462-1.12%4710.9Village
Henderson11253263-1.17%9550.3Village
Victoria12253268-1.56%5610.5Village
Maquon13212222-1.4%1,3090.2Village
Rio14202209-0.98%6470.3Village
St. Augustine15111117-1.77%1870.6Village
Gilson16110194-4.35%3320.3CDP

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 Knox County, Illinois?

Galesburg is the largest city in Knox County.

What is the smallest city in Knox County, Illinois?

Gilson is the smallest city in Knox County.

How many cities are in Knox County?

There are 16 cities in Knox County, Illinois.

Frequently Asked Questions