Ironton is located on the Cuyuna iron range, from which its name is derived. It is immediately adjacent to its twin city of Crosby, Minnesota.
There were 231 households out of which 26.4% had children under the age of 18 living with them, 42.4% were married couples living together, 9.1% had a female householder with no husband present, and 43.7% were non-families. 39.8% of all households were made up of individuals and 26.4% had someone living alone who was 65 years of age or older. The average household size was 2.16 and the average family size was 2.88.
In the city the population was spread out with 27.1% under the age of 18, 6.8% from 18 to 24, 22.9% from 25 to 44, 17.7% from 45 to 64, and 25.5% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 81.1 males. For every 100 females age 18 and over, there were 75.4 males.
The median income for a household in the city was $22,813, and the median income for a family was $30,729. Males had a median income of $27,222 versus $17,143 for females. The per capita income for the city was $12,949. About 13.7% of families and 17.5% of the population were below the poverty line, including 16.5% of those under age 18 and 23.5% of those age 65 or over.