THE ROCK VALLEY LAND BRIEF
Land in the
Loess Prairies setting.
Rock Valley city has 4.46 square miles of land in Sioux County. Its Census reference point is in Loess Prairies, within Western Corn Belt Plains.
Glacial till plains and windblown loess hills make up the Western Corn Belt landscape. Near-level and rolling terrain are interspersed with steeper river valleys and hills.
Regional context: Western Corn Belt Plains ↗ · Classification at the Census reference point
Rock Valley and Sioux County
Rock Valley is associated with Sioux County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Rock Valley by land and water
The Census records 0.05 square miles of water within Rock Valley, or 1.2% of its total area. It is 1 percentage points higher than the 0.1% recorded for Sioux County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Rock Valley city has 5.7 times the land area of nearby Doon city (0.78 square miles). These areas describe boundaries, not comparable property prices.

