The case made in your recent blog post is even stronger than you realized. Travis county is home to Austin, not Houston, which is in fact in Harris County. Seeing itself as a rival to Portland, Oregon, the former city has a far whiter atmosphere than the latter.
This is certainly futher evidence that a "flight from diversity" is motivating American migration, not just taxes, as the London Economist claims. Click here for Travis county map and here for news of how Austin liberals are working to undermine their city's appeal.