Iona is a city in Murray County, Minnesota, United States.

Minnesota State Highway 267 has its southern terminus in Iona and leads north 5 miles (8 km) to Highway 30, about 1 mile (1.6 km) west of Slayton, the county seat.

According to the U.S. Census Bureau, Iona has a total area of 0.55 square miles (1.42 km2), all land.

45.1% of all households were made up of individuals, and 26.7% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 95.95% White, 1.16% Asian, 0.58% Pacific Islander, and 2.31% from two or more races.

38.8% of all households were made up of individuals, and 21.3% had someone living alone who was 65 years of age or older.

About 8.3% of families and 8.4% of the population were below the poverty line, including 13.5% of those under the age of eighteen and 13.2% of those 65 or over.