There are 9 cities in Sullivan County, Missouri.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Milan1Missouri1,7271,815-1.26%9741.77
Green City2Missouri568600-1.39%3971.43
Browning3Missouri217218 4150.52
Greencastle4Missouri208219-1.42%4650.45
Newtown5Missouri105115-2.78%4150.25
Humphreys6Missouri8690-1.15%3450.25
Harris7Missouri5963-1.67%3830.15
Pollock8Missouri4647 2770.17
Osgood9Missouri2124-4.54%1150.18
showing: 9 rows

Cities in Sullivan County, Missouri by Population (2024)

What is the largest city in Sullivan County, Missouri?

Milan is the largest city in Sullivan County.

What is the smallest city in Sullivan County, Missouri?

Osgood is the smallest city in Sullivan County.

How many cities are in Sullivan County?

There are 9 cities in Sullivan County, Missouri.

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