New York City generally gets folks understanding where I'm from, but I have the benefit of living an hour outside of arguably one of the most recognizable cities in the world.
I get what you're saying, and I kind of use it as a tool to continue conversation. Any time I meet folks from somewhere else, I tend to ask them about it. I've had some long conversations about places I never knew much about with Uber drivers or waiters, and I suppose I project that onto people too, that perhaps they're interested in the minutiae of life in northeast American suburbia. It definitely pales in comparison to people from war-torn African countries, but it is what it is.
The fun part about when someone tells me they're from a place I've never heard of is that I get to ask them about that place now. I enjoy it. I don't expect everyone to know it, but maybe I do expect them to be interested in conversation.