The data for Sac County are summarized in this water planning data fact sheet.
Sac County is located in west central Iowa.
Farming and wholesale and retail trade are the principal economic sectors, as measured by employee earnings. The county contains gently rolling hills, flat plains, the Boyer River Valley, Black Hawk Lake, and small drainage streams. The population of 12,324 is distributed in 9 incorporated cities and the surrounding rural areas. Highway 71 crosses the county from north to south. Highway 20 crosses the county from east to west.