In 2022, the population of Rossie was 46, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Rossie's population was 46, a decline of 0.00% compared to a population of 46 in 2020.
The median age in Rossie, IA is 50.9, as per 2021 ACS 5-Year Estimates. Of the total population, 16.05% were under the age of 15, 11.11% aged 15 to 29, 30.86% aged 30 to 64, 41.98% aged 65 to 84, and 0.00% were 85 years of age and older.