Houston should be leading the country in arts grants. See the link below to a great article and must read for artist in Texas. 

http://www.houstonchronicle.com/news/houston-texas/houston/article/City-arts-plan-calls-for-boost-in-financial-6569396.php

These numbers are  interesting but unimportant if they are not apples to apples.   - the full graph is in the article