Plymouth County, Iowa Cities (2025)

11 cities

City
Rank
2025 Pop.
2020 Pop.
Annual Change
Density
Area (mi²)
Type
Le Mars110,62910,6010.06%1,2459 City
Remsen21,6871,6740.18%1,1521 City
Akron31,5361,550-0.19%1,2471 City
Kingsley41,3841,401-0.22%8572 City
Hinton59699340.73%1,0831 City
Merrill6705717-0.28%1,3581 City
Brunsville71291280%5540 City
Westfield81191210%9020 City
Oyens993950%8230 City
Craig1075770%8520 City
Struble1166680%4230 City

Plymouth County Cities Summary

Largest City

Le Mars is the largest city in Plymouth County, with a population of 10,629.

Smallest City

Struble is the smallest city in Plymouth County, with a population of 66.

10 Largest Cities

There are 11 cities in Plymouth County, Iowa.

Location of Plymouth County