Ranking of Buchanan, MO Cities and Places By population in 2020
Updated on June 27, 2025.
Based on the US Census Vintage data estimates, in 2020, among all Buchanan, MO cities and places, St. Joseph city had the highest population (72.15K), followed by Balance of Buchanan County (10.85K), and Agency village (667).
The chart below shows the top 9 cities and places, and the table below shows the ranking of all Buchanan cities and places.
You can see similar information for other Missouri counties. You can also see the ranking of all cities and places in Missouri.
Data Source: US Census Bureau (Vintage).
Ranking of Buchanan, MO Cities and Places By population in 2020
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| Rank | City or Place | Population |
|---|---|---|
| 1 | St. Joseph city | 72153 |
| 2 | Balance of Buchanan County | 10849 |
| 3 | Agency village | 667 |
| 4 | De Kalb town | 230 |
| 5 | Easton city | 226 |
| 6 | Rushville village | 222 |
| 7 | Lewis and Clark Village town | 94 |
| 8 | Gower city (pt.) | 31 |
| 9 | Dearborn city (pt.) | 0 |