Northside College Prep in Chicago has Latin (and my nephews actually took it at the K-8 level in public schools as well). If you read the story, you'll find that many of Foster's former students are teaching Latin, and Santa Monica High School (another public school) is given as an example of where his graduates teach. My local public high school also offers Latin (as does the Catholic high school half a mile down the street). There's been a bit of a renaissance of Latin in the schools of late.