From my experience, the ex Eastern Bloc countries. I am speaking about all the STEM fields, not just SWE. I remember that my mom (Romanian) was shocked when I told her that in my CS high school class (in Italy) we were all boys.
EDITED: Also, when I worked at Upwork as a PM, most of our software engineers were from Eastern Europe (Russia, Ukraine, Belarus, etc) and we had almost no women on the team.