There are 99 Donut Shops in Iowa, serving a population of 3,118,102 people in an area of 55,842 square miles. There is 1 Donut Shop per 31,495 people, and 1 Donut Shop per 564 square miles.
The state of Iowa is ranked 46th in Donut Shops per capita, and 40th in Donut Shops per square mile.