There are 17 cities in Knox County, Illinois.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Galesburg1Illinois28,44129,944-1.41%1,60317.74
Abingdon2Illinois2,7732,946-1.67%1,9461.43
Knoxville3Illinois2,7452,892-1.47%1,1682.35
East Galesburg4Illinois714759-1.79%5231.36
Wataga5Illinois694740-1.84%8370.83
Oak Run6Illinois673468 1903.54
Oneida7Illinois658694-1.5%8620.76
Yates City8Illinois602641-1.79%1,2210.49
Williamsfield9Illinois539568-1.46%4381.23
Altona10Illinois434462-1.81%4630.94
London Mills11Illinois344350-0.58%5030.68
Victoria12Illinois255269-1.54%5650.45
Henderson13Illinois252266-1.56%9510.27
Maquon14Illinois205222-2.38%1,2650.16
Rio15Illinois198209-1.49%6350.31
Gilson16Illinois121194 5190.23
St. Augustine17Illinois111118-1.77%1870.59
showing: 17 rows

Cities in Knox County, Illinois by Population (2024)

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?

St. Augustine is the smallest city in Knox County.

How many cities are in Knox County?

There are 17 cities in Knox County, Illinois.

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