How do you feel your national statistics about your population are meaningless, do you mean inaccurate? I am saying you are on an Island...an area which does not coincide with the status quo of your general population, you live where there is a preponderonce of ethnicities compared to the rest of your country.Sorry but no I am not on an island. Edinburgh is the most cosmopolitan city here but Glasgow has the highest Asian population and you find immigrants in every forgotten corner of this country. What I suggest is that official statistics are utterly meaningless.
Now I do know that I attend a church that is almost exactly 50% black...most black people think it is mostly white, and most white people think it is mostly black.
My wife suggested that we get vinyl siding because everyone has it. I said no everyone doesn't have it. She said well most people have it, I said no, most people don't have it. We drove around what she perceived as most or every was less than 20%.
I'm not saying that your perception is that far off...but I would tend to believe the stats and that the area you live is incongruent with your country...