Monona County, Iowa Cities (2024)

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
Onawa12,7862,906-1.06%5295.3City
Mapleton21,1111,161-1.16%7071.6City
Whiting3721744-0.83%7091.0City
Ute4326342-1.21%8760.4City
Blencoe5225233-0.88%2960.8City
Moorhead6186197-1.59%7910.2City
Soldier7178185-1.11%5740.3City
Castana8102105-0.97%1120.9City
Turin96972-1.43%7670.1City
Rodney104245-2.33%2760.2City

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.

What is the largest city in Monona County, Iowa?

Onawa is the largest city in Monona County.

What is the smallest city in Monona County, Iowa?

Rodney is the smallest city in Monona County.

How many cities are in Monona County?

There are 10 cities in Monona County, Iowa.

Frequently Asked Questions