Well, it's no secret the better school districts are generally where the most money is...
I know Texas monthly had an article in their December issue for the best schools in Texas..
http://www.texasmonthly.com/2007-12-01/feature6.php
There is a website where you can go research this but I have it bookmarked... let me see if I can find it and I'll letcha know.
Here's another of the sites I have bookmarked.
http://www.psk12.com/rating/USindexphp/STATE_TX.html
.... this is the site I was initialy referring to
http://www.tea.state.tx.us/perfreport/aeis/index.html
This is The Texas Education Agency's Academic Excellence Indicator System. You can see everything from the ethnic statistics to the teacher qualifications on this... the site is a little difficult to navigate so it may take some time to wade through the information but it's all there! Excellent resource.