Cities & Towns in Franklin County, MO

Franklin County, county in Missouri, United States. There are 1 city/town in Franklin County, MO. You can find the list of these cities and detailed information from the links below.

The largest city of Franklin County is Union with a population of 12,094.

Union
Union

Union, city in and county seat of Franklin County, Missouri, United States

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Cities, Towns, Neighborhoods & Other Populated Places in Franklin County.

City Name Title County Population
Union City in and county seat of Franklin County, Missouri, United States Franklin 12,094
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