Ranking of Jasper, IA Cities and Places By population in 2020
Updated on June 27, 2025.
Based on the US Census Vintage data estimates, in 2020, among all Jasper, IA cities and places, Newton city had the highest population (15.75K), followed by Balance of Jasper County (12.44K), and Colfax city (2.25K).
The chart below shows the top 10 cities and places, and the table below shows the ranking of all Jasper 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 Jasper, IA Cities and Places By population in 2020
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| Rank | City or Place | Population |
|---|---|---|
| 1 | Newton city | 15750 |
| 2 | Balance of Jasper County | 12442 |
| 3 | Colfax city | 2254 |
| 4 | Monroe city | 1968 |
| 5 | Prairie City city | 1698 |
| 6 | Baxter city | 971 |
| 7 | Sully city | 880 |
| 8 | Kellogg city | 601 |
| 9 | Lynnville city | 382 |
| 10 | Mingo city | 303 |
| 11 | Oakland Acres city | 175 |
| 12 | Lambs Grove city | 174 |
| 13 | Reasnor city | 155 |
| 14 | Valeria city | 39 |
| 15 | Mitchellville city (pt.) | 26 |