Where I live in the Midwest US, most people from Asia or with Asian ancestry are Hmong, Korean, Chinese or Japanese. Essentially, "Asian" has become a euphemism

Where I live in the Midwest US, most people from Asia or with Asian ancestry are Hmong, Korean, Chinese or Japanese. Essentially, "Asian" has become a euphemism for "East Asian". There's a notable exception in Rochester, Minnesota, where the Mayo Clinic and related industry drew a lot of immigration from India. As a result, "India" is occasionally lumped in with "South Asia" but is typically referred to as its own entity in lay conversation. I suspect part of that is proximity to the middle east, which is also rarely lumped in with "Asia" in colloquial conversation, and general confusion or laziness over needing to specify the "east" part of "east Asia". Other parts of the country probably speak differently based on who lives there. I can say this though - if I want to go to a restaurant for "Asian" food, it'll usually be Chinese, Japanese or Vietnamese, and the restaurant will typically offer dishes from at least two of those cuisines (sometimes authentic, sometimes heavily tailored to a Midwestern pallet). On the other hand, if I want Indian food, I'm going to an Indian restaurant, and the closest thing on offer to one of the other above cuisines is some variation of a Manchurian dish from Mumbai, depending on what regional focus or focuses the restaurant offers.