score:6
You reside in Iran. You are therefore probably disqualified from using the visa waiver program. But you're not going to use it; you have a visa.
There is nothing that would lead to an automatic denial of boarding because of residence in Iran. You shouldn't try to hide your residence. If you appear to be evasive, you will create more problems for yourself.
I wouldn't go so far as to say that you have no need to worry. You'll probably get some extra questions about your activities in Iran. But claiming a different residence would almost certainly not help you, and it will probably hurt you.