The total population of Cromwell is estimated to be 75 with 36 males (48.00%) and 39 females (52.00%). There are 3 more females than males in Cromwell.
In 2022, the population of Cromwell was 104, a 0.95% decrease year-by-year from 2021. Previously, in 2021, Cromwell's population was 105, a decline of 0.94% compared to a population of 106 in 2020.
The median age in Cromwell, IA is 67.5, as per 2021 ACS 5-Year Estimates. Of the total population, 12.12% were under the age of 15, 1.52% aged 15 to 29, 34.85% aged 30 to 64, 51.52% aged 65 to 84, and 0.00% were 85 years of age and older.