The state of Iowa borders Minnesota to the south.
Iowa borders Missouri to the south.
Iowa is
The state of Iowa borders Minnesota to the south.
Missouri is the state that is south of Iowa
The most southern state Iowa borders is Missouri. However, Missouri is a Midwestern state and not a Southern one.
Iowa
U.S. Route 30 in Iowa
I-35 is the primary north to south interstate highway in Iowa. It enters Iowa from the Minnesota state line at Council Bluffs, Iowa and runs south to the Missouri state line at Lamoni, Iowa.
South Dakota is North East of Iowa.
Iowa
South Dakota