Yes, I was talking about official language, not native language as well. This sentence from the article Paul gave a link to might clarify better what I meant: ¨Although English is not an official language at the national level in the United States, many states and territories within the United States have English as an official language.
English is certainly not a native language of the United States either.
It's not an official language in the UK either. Nor is it I believe in Australia or New Zealand. All of course are countries where English is by far the predominant language spoken.
Anyway to answer your question: