There are 10 cities in Decatur County, Iowa.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Lamoni1Iowa1,9861,9570.3%5023.96
Leon2Iowa1,8341,8140.16%5783.17
Grand River3Iowa1991940.51%9570.21
Davis City4Iowa1831780.55%3100.59
Decatur City5Iowa178176 4480.40
Van Wert6Iowa178176 5390.33
Garden Grove7Iowa173171 2500.69
Weldon8Iowa1401360.72%7730.18
Pleasanton9Iowa3232 920.35
Le Roy10Iowa99 270.33
showing: 10 rows

Cities in Decatur County, Iowa by Population (2024)

What is the largest city in Decatur County, Iowa?

Lamoni is the largest city in Decatur County.

What is the smallest city in Decatur County, Iowa?

Le Roy is the smallest city in Decatur County.

How many cities are in Decatur County?

There are 10 cities in Decatur County, Iowa.

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