Cities in Clayton County, Iowa by Population (2024)

There are 27 cities in Clayton 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.)

CSV JSON

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Postville1Iowa2,4022,502-1.03%1,1592.07
Guttenberg2Iowa1,8121,8120%8262.19
Monona3Iowa1,4581,470-0.21%1,0701.36
Elkader4Iowa1,1971,211-0.25%8761.37
Strawberry Point5Iowa1,1411,157-0.35%5462.09
Edgewood6Iowa9189080.33%9560.96
Garnavillo7Iowa7597570.13%8040.94
McGregor8Iowa731737-0.14%5651.29
Elgin9Iowa671685-0.45%9900.68
Clermont10Iowa5775770%4581.26
Marquette11Iowa4364280.46%2351.86
Arlington12Iowa4184200%4171
Colesburg13Iowa381385-0.26%1,2960.29
Holy Cross14Iowa340358-1.16%1,0370.33
Luana15Iowa3103000.98%2811.10
Farmersburg16Iowa264272-0.75%6490.41
Greeley17Iowa2162160%5760.38
Wadena18Iowa203207-0.49%2700.75
Volga19Iowa2012030%2670.75
Sherrill20Iowa175185-1.13%1,3260.13
North Buena Vista21Iowa1111070.91%1200.93
St. Olaf22Iowa1011030%4190.24
Balltown23Iowa77770%1,0690.07
Garber24Iowa77770%3420.23
Clayton25Iowa46460%890.51
Osterdock26Iowa44440%1110.40
Elkport27Iowa28280%1120.25
showing: 27 rows

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 Clayton County, Iowa?

Postville is the largest city in Clayton County.

What is the smallest city in Clayton County, Iowa?

Elkport is the smallest city in Clayton County.

How many cities are in Clayton County?

There are 27 cities in Clayton County, Iowa.

Frequently Asked Questions