From my own experience and what I've seen from major US universities, this does not seem to be the case.
For intro (1st year-ish) CS, it looks like most places are teaching Python and C++, with some institutions (such as my own) using Java. An ACM article from 2014 actually has some numbers here. [0]
I graduated relatively recently with a bachelors degree, majoring in CS and Computer Engineering. I had only one course which actually used C, and that wasn't for my CS major. I've spent a fair amount of time since then doing low-level work on ARM micros, but definitely wasn't taught this in school.
For intro (1st year-ish) CS, it looks like most places are teaching Python and C++, with some institutions (such as my own) using Java. An ACM article from 2014 actually has some numbers here. [0]
I graduated relatively recently with a bachelors degree, majoring in CS and Computer Engineering. I had only one course which actually used C, and that wasn't for my CS major. I've spent a fair amount of time since then doing low-level work on ARM micros, but definitely wasn't taught this in school.
[0] http://cacm.acm.org/blogs/blog-cacm/176450-python-is-now-the...