CARROLL, a city of western Iowa, U.S.A., on Federal high ways 3o (the Lincoln) and 71, at an altitude of 1,270 ft.; the county seat of Carroll county. It is served by the Chicago and North-western and the Chicago Great Western railways. The population in 1930 Federal census was 4,691. It is the trade cen tre of a rich agricultural district, ships grain, flour, produce and livestock, and manufactures farm implements and toys. The city was founded about 1867 and incorporated in 1868.