Ranking of Decatur, IA Cities and Places By population in 2021
Updated on June 27, 2025.
Based on the US Census Vintage data estimates, in 2021, among all Decatur, IA cities and places, Balance of Decatur County had the highest population (2.79K), followed by Lamoni city (2.09K), and Leon city (1.82K).
The chart below shows the top 10 cities and places, and the table below shows the ranking of all Decatur cities and places.
You can see similar information for other Iowa counties. You can also see the ranking of all cities and places in Iowa.
Data Source: US Census Bureau (Vintage).
Ranking of Decatur, IA Cities and Places By population in 2021
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| Rank | City or Place | Population |
|---|---|---|
| 1 | Balance of Decatur County | 2789 |
| 2 | Lamoni city | 2093 |
| 3 | Leon city | 1824 |
| 4 | Grand River city | 197 |
| 5 | Davis City city | 182 |
| 6 | Van Wert city | 179 |
| 7 | Decatur city | 176 |
| 7 | Garden Grove city | 176 |
| 8 | Weldon city | 139 |
| 9 | Pleasanton city | 32 |
| 10 | Le Roy city | 10 |