Say where you live now — and ask someone else.
Ich komme aus … is where you're originally from. Ich wohne in … is where you live now — Amina is from Nigeria, but lives in Berlin. Both can be true at once, and it's completely normal for them to be different places. wohnen means "to live"; Ich wohne in … names the city you live in now.
A few more ways to say it:
Ich ___ in Köln. A. komme B. wohne C. heiße — Answer: B, wohne.
To ask, use Wo wohnst du? — "Where do you live?"
You can say where you live with Ich wohne in … and ask with Wo wohnst du? — and you know it's different from where you're from.