The total population of Irondale is estimated to be 560 with 334 males (59.64%) and 226 females (40.36%). There are 108 less females than males in Irondale.
In 2022, the population of Irondale was 367, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Irondale's population was 367, a decline of 0.00% compared to a population of 367 in 2020.
The median age in Irondale, MO is 35.1, as per 2021 ACS 5-Year Estimates. Of the total population, 26.33% were under the age of 15, 17.44% aged 15 to 29, 49.47% aged 30 to 64, 6.58% aged 65 to 84, and 0.18% were 85 years of age and older.