Ranking of Union County, IA Cities and Places By Population in 2021

Updated on August 16, 2024.

Based on the US Census Vintage data estimates, in 2021, among all Union County, IA cities and places, Creston city had the highest population (7.48K), followed by Balance of Union County (3.01K), and Afton city (867).

The chart below shows the top 8 cities and places, and the table below shows the ranking of all Union 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.

See this for other years:
Ranking of Union County, IA Cities and Places By Population in 2021
Creston city
Balance of Union County
Afton city
Lorimor city
Cromwell city
Arispe city
Shannon City city (pt.)
Thayer city
Ranking of Union County, IA Cities and Places By Population in 2021
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Rank City or Place Population
1 Creston city 7480
2 Balance of Union County 3006
3 Afton city 867
4 Lorimor city 383
5 Cromwell city 104
6 Arispe city 95
7 Shannon City city (pt.) 65
8 Thayer city 49