grew or grow

[MsNyree]

Is it where did you grow up?

or

Is it where did you grew up?

I think it's grow.

I want to know where are you from (location).

[Barb_D]

Is it where did you grow up?

or

Is it where did you grew up?

I think it's grow.

You are correct. You have the verb "to do" in "Where did" so the main verb is in the bare infinitive: grow, not grew. Just as you would NOT say "We did you went?"

I want to know where are you are from (location).

You have that first part "I want to know" so you don't have the inversion that you would have with the question alone: Where are you from? I want to know where you are from.