The data for Marion County are summarized in this water planning data fact sheet. Marion County is located in south central Iowa.
Manufacturing is the principal economic sector, as measured by employee earnings.
The county contains steeply rolling hills, Red Rock Reservoir, the Des Moines River Valley, and small drainage streams. The population of 30,001 is distributed in 9 incorporated cities and the surrounding rural areas. State Highway 92 crosses the county from east to west. State Highway 14 crosses the county from north to south. This data sheet focuses on water uses that withdraw water from ground and surface water sources.