Continuing east, Iowa 3 intersects Iowa 4 in Pocahontas. Between Pocahontas and Gilmore City, Iowa 3 meets Iowa 15. Iowa 3 intersects US 169 in Humboldt. East of Humboldt, Iowa 3 is overlapped briefly by Iowa 17 near Goldfield. Iowa 3 overlaps US 69 east of Clarion. Between Latimer and Coulter, Iowa 3 meets I-35 at a diamond interchange. East of that interchange in Hampton, Iowa 3 intersects US 65. At Allison, Iowa 3 is briefly overlapped by Iowa 14. Iowa 3 meets Iowa 188 south of Clarksville.