I have been working on this for about 18 months, there was always something more important come up that I had to deal with first. I have concentrated and spend considerable time and was going to have this ready at beginning of December last year, but found out I had an issue with how the zones are calculated, so had to redo a lot of work from the ground up. Anyhow, it is ready now, I will probably do a post on how school zones are defined in South Australia. One more thing to note is that South Australia is no different compared to all other Australian states that most of populations and schools are concentrated in one city Adelaide.
There will be the different set of maps coming, first and what has been done in public school zone map at primary level, I will follow and do the secondary level one at a later date.