Here is something I found with relation to previous years disaster related retirement plan withdrawals and tax treatment in Iowa.
Iowa Treatment for Tax Year 2019: Taxpayers who take a qualified disaster distribution in 2019 and elect not to include the full amount in income for federal tax purposes must make an adjustment to include the entire distribution in income for Iowa tax purposes. Here is the link if you want to review.
I do not see anything specific to 2020 but, Iowa did not allow the deferral for 2018 or 2019 disasters. That would seem to suggest the entire amount would be taxable in Iowa in 2020.
