The seat and largest city is Newton. The Skunk Rivers run through the county.
It borders Marshall, Poweshiek, Mahaska, Marion, Polk and Story Counties.
Main highways include I-80, US-6, US-65, IA-14, IA-163, IA-117 and IA-330.
Cities
Baxter
Colfax
Kellogg
Mingo
Newton
Oakland Acres
Valeria