Yes. There is a myth that absentee ballots only get counted if the election is close, however, this is not true. Under Iowa law, every ballot must be counted.

If you have moved recently and need to update your address for voting, all you have to do is fill out a new voter registration form and submit it to the Auditor’s office. If you do not update your address after a move through a new voter registration form and do not vote in the next general election, you will be marked inactive (inactive voters may still vote with proper ID). Registration will be canceled if two more general elections pass with no voter activity.