Frost line depth in Van Wert County, OH
How deep the ground freezes in Van Wert County, OH
30 in. Dig to 30 in, just below the frost. Nearest NOAA station: Van Wert 1 S, 0.5 mi.
Your building department sets the legal frost line depth (IRC Table R301.2(1)); footings must go below it (R403.1.4.1). Call them before you dig.