Cities in Mason County, Illinois by Population (2024)

There are 12 cities in Mason County, Illinois.

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.)

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Havana1Illinois2,7842,956-1.52%1,0032.78
Mason City2Illinois1,9512,069-1.51%1,9261.01
Manito3Illinois1,4571,551-1.62%9631.51
Chandlerville4Illinois507531-1.17%6390.79
San Jose5Illinois455478-1.3%1,0990.41
Easton6Illinois297316-1.66%1,2380.24
New Holland7Illinois265272-0.75%8550.31
Bath8Illinois260275-1.52%7120.36
Kilbourne9Illinois253267-1.56%2850.89
Forest City10Illinois206217-1.44%3940.52
Goofy Ridge11Illinois204238-0.97%1511.35
Topeka12Illinois5458-1.82%3940.14

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 Mason County, Illinois?

Havana is the largest city in Mason County.

What is the smallest city in Mason County, Illinois?

Topeka is the smallest city in Mason County.

How many cities are in Mason County?

There are 12 cities in Mason County, Illinois.

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