THE ROCK ISLAND LAND BRIEF
Land in the
Northern Missouri Coteau setting.
Rock Island township has 34.4 square miles of land in Williams County. Its Census reference point is in Northern Missouri Coteau, within Northwestern Glaciated Plains.
Glaciated plains bridge the wetter eastern prairie and the drier, more broken Great Plains. Numerous prairie potholes and other seasonal or persistent wetlands are characteristic regional landforms.
Regional context: Northwestern Glaciated Plains ↗ · Classification at the Census reference point
Rock Island and Williams County
Rock Island is associated with Williams 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 Island by land and water
The Census records 0.81 square miles of water within Rock Island, or 2.3% of its total area. It is 1 percentage points lower than the 3.3% recorded for Williams County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Rock Island township has 62.8 times the land area of nearby Alamo city (0.55 square miles). These areas describe boundaries, not comparable property prices.

