Marble Rock, Iowa

[2] Marble Rock has a city park, historical museums, a powerhouse on the river, and a veterans' memorial.

The Marble Rock Historical Society has a website with information about the museums.

The Shell Rock River runs through the west side of town and is available for fishermen and small watercraft.

There is a portage around the dam, on the west side of the river, for canoes.

There were 138 housing units at an average density of 165.8 per square mile (64.0/km2).

There were 150 housing units at an average density of 180.7 per square mile (69.8/km2).

The racial makeup of the city was 99.0% White, 0.3% Asian, and 0.7% from two or more races.

32.1% of all households were made up of individuals, and 13.4% had someone living alone who was 65 years of age or older.

30.5% of all households were made up of individuals, and 18.4% had someone living alone who was 65 years of age or older.

Map of Iowa highlighting Floyd County