Cities in Sioux County, Iowa by Population (2024)

There are 22 cities in Sioux County, Iowa.

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.)

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Le Mars1Iowa10,62310,6010.05%1,2448.54
Sioux Center2Iowa8,6418,2491.15%1,3696.31
Orange City3Iowa6,4376,2770.63%1,3974.61
Sheldon4Iowa5,3965,500-0.48%1,1234.80
Rock Valley5Iowa4,0374,067-0.2%9054.46
Hawarden6Iowa2,6262,697-0.68%9482.77
Hull7Iowa2,4502,3780.74%1,7311.42
Remsen8Iowa1,6841,6740.12%1,1501.46
Alton9Iowa1,2421,244-0.08%6531.90
Inwood10Iowa9679271.04%6821.42
Hospers11Iowa701719-0.71%1,3280.53
Boyden12Iowa695701-0.29%1,0160.68
Doon13Iowa6506181.25%8300.78
Ireton14Iowa575587-0.52%5641.02
Hudson15South Dakota3253160.62%1,1520.28
Granville16Iowa300311-0.99%1,0310.29
Maurice17Iowa2732680.37%4530.60
Oyens18Iowa9395-1.06%8230.11
Matlock19Iowa77760%2040.38
Craig20Iowa7577-1.32%8520.09
Chatsworth21Iowa74740%1490.50
Struble22Iowa6668-1.49%4230.16

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 Sioux County, Iowa?

Le Mars is the largest city in Sioux County.

What is the smallest city in Sioux County, Iowa?

Struble is the smallest city in Sioux County.

How many cities are in Sioux County?

There are 22 cities in Sioux County, Iowa.

Frequently Asked Questions