#locals

Anyone who's lived in that area for any amount of time

Anyone who's lived in that area for at least a year

Anyone who's lived in that area for 2–5 years

Anyone who's lived in that area for 6–10 years

Anyone who's lived in that area for 11+ years

Anyone who's spent the majority of their life there

Must be born in that area (even if they didn't grow up there)

Must have spent the majority of their childhood there

It's less about the time lived there and more about… (elaborate in comments)

Other complicated answer