Yes. Iowa law allows for Election Day registration if you are able to provide proof of identification (i.e. valid photo ID) and proof of residency (i.e. utility bill with your name on it if your ID has an outdated address on it). If you are unable to provide one or both of these you are allowed to bring someone with you to attest that you have the right to vote.

Starting in January of 2019 you will be required to show identification. If you need to register to vote on Election Day, you must bring proof of identification and proof of residency.