Select your home state, territory or province. If you do not see your residence, then select "Neither U.S. nor Canada."
If any traveler in your group resides in a different state/province/country, that person will need to purchase a separate plan. Due to insurance laws varying by state, you cannot list residents of multiple states on the same policy.
Here is the clause as stated in your iTravelinsured SE plan:
"Benefits will be paid for the Covered Expense incurred, up to the Maximum Benefit Amount shown in the Schedule of Benefits, as a result of a Covered Accidental Injury or covered Sickness, which first occurs during Your Trip (of a duration of ninety (90) days or less for Sickness). Only Covered Expenses incurred during Your Trip (of duration of ninety (90) days or less for Sickness) will be reimbursed. Expenses incurred after Your Trip are not covered."