Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Storm Lake | 1 | 11,493 | 11,257 | 0.52% | 2,118 | 5.4 | City |
| Alta | 2 | 1,995 | 2,086 | -1.14% | 1,851 | 1.1 | City |
| Newell | 3 | 828 | 904 | -2.24% | 656 | 1.3 | City |
| Sioux Rapids | 4 | 708 | 747 | -1.39% | 863 | 0.8 | City |
| Lakeside | 5 | 681 | 701 | -0.73% | 3,013 | 0.2 | City |
| Albert City | 6 | 609 | 675 | -2.72% | 1,117 | 0.5 | City |
| Marathon | 7 | 217 | 232 | -1.81% | 290 | 0.7 | City |
| Rembrandt | 8 | 197 | 211 | -1.99% | 838 | 0.2 | City |
| Linn Grove | 9 | 151 | 162 | -1.95% | 271 | 0.6 | City |
| Truesdale | 10 | 62 | 66 | -1.59% | 425 | 0.1 | City |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Storm Lake is the largest city in Buena Vista County.
Truesdale is the smallest city in Buena Vista County.
There are 10 cities in Buena Vista County, Iowa.