Cities in St. Clair County, Missouri by Population (2024)

There are 21 cities in St. Clair County, Missouri.

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)
El Dorado Springs1Missouri3,6653,5031.13%1,1893.08
Warsaw2Missouri2,3792,2171.75%9542.49
Stockton3Missouri1,8431,6892.16%8712.12
Appleton City4Missouri1,0871,0391.12%9471.15
Osceola5Missouri9759331.14%9041.08
Humansville6Missouri9589141.16%7681.25
Lowry City7Missouri6466181.09%6301.03
Weaubleau8Missouri4083801.75%4720.86
Montrose9Missouri3953850.77%6930.57
Deepwater10Missouri3913572.36%4610.85
Bent Tree Harbor11Missouri39022012.39%1882.08
White Branch12Missouri2672254.3%5370.50
Schell City13Missouri2282280%3670.62
Rockville14Missouri1391370.73%4220.33
Collins15Missouri1351291.5%5470.25
Roscoe16Missouri93891.09%611.53
Brownington17Missouri73691.39%6030.12
Umber View Heights18Missouri43412.38%6940.06
Vista19Missouri35332.94%2670.13
Harwood20Missouri31310%2950.10
Gerster21Missouri16160%1980.08

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 St. Clair County, Missouri?

El Dorado Springs is the largest city in St. Clair County.

What is the smallest city in St. Clair County, Missouri?

Gerster is the smallest city in St. Clair County.

How many cities are in St. Clair County?

There are 21 cities in St. Clair County, Missouri.

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