California and New York are the most famous examples but asking perplexity I got:

As of the current 2026 rules, the states that do not require ID at the polls are: California, Colorado, Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, Nevada, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Vermont, Washington, and Wisconsin, plus Delaware has a special affidavit process if you do not have ID

https://www.usvotefoundation.org/2026-in-person-voter-id-pol...