203,614 students were enrolled in public school grades 9 through 12 at the end of the 2009-10 school year. That's from the SAAR Enrollment Report on the Department of Education website.
206,348 students are estimated to be now enrolled as undergraduates in Kentucky's public universities and community colleges. That's from the new preliminary reporting from the Council on Postsecondary Education.
The comparison is imperfect, because the high school count was taken after a year of students dropping out and the college number was taken before those losses. A fresh high school count taken today (or more exactly, compiled through Infinite Campus) might show our high schools still ahead of our colleges by a few thousand students.
Even so, the numbers are now very close, and that's an amazing development in higher education participation!