I received insurance check from USAA due to storm damage on rental property. Does insurance check count as additional income?

[Opus 17]

Mostly no.  In rare cases maybe yes.

If you spend the money to repair damages then it is not income. 

If you don't repair the damage, then part of the check might be income if the amount of the payment is more than the amount of your loss.  This is complicated and I can explain more if you need more details.