In speaking with people educated elsewhere, I've always gotten the impression that they are generally far better educated about American geography and politics than we are about non-American geography or politics. Most non-Americans I've known are able to discuss American geography/politics much more intelligently than the typical American I know would be able to discuss, say, those of the UK, Germany, China or Japan.
Speaking solely from personal experience, there's a huge range in quality of public education from region to region in the US. I attended primary school in a backwoods, rural county in North Carolina, but that school was far advanced compared to the nearby school system (supposedly one of the best in the state) to which I transferred at age 10.
At my first school, by the end of 4th grade we were required to know all 100 counties in NC and their county seats, all 50 US states and their capitals, all European countries and their capitals, all Canadian provinces and capitals, and all of the US presidents up to that point (Reagan), and their years in office. When I moved to the "better" urban school system in 5th grade, those students had learned only the states and their capitals, but most had already forgotten them or had not really learned them in the first place.

Of course, that's not so bad considering that, years later, most of my fellow students at university couldn't spell even basic English words.

I can't find the citation, but there was a survey of GRADUATING high school seniors in Texas some time in the 90s in which they were asked "What is the country that borders Texas to the south?"
Something like 70% of those surveyed could not answer correctly.