Well... I don't have any kids... I'm only 22
My cousin is an assistant principal at one of the elementary schools.
I will say that SF doesn't have any bad schools. And I wouldn't be worried about him fitting in. I think that the older you get, the harder it is to fit into a new school.
I've heard great things about the schools around SF... Tea, West Central, Brandon, Harrisburg... All are growing districts, so adding more kids all the time. They also tend to have newer buildings.
Rosa Parks Elementary is trying out a Spanish Immersion Program.
News, Weather and Sports for Sioux Falls, South Dakota, Minnesota and Iowa
There's a link to a news story... I'm really not sure what to think of it.