Checked the TX DPS stats on new CHLs issued in 2010 by zip code, and based on the size of my zip code area in square miles, there were 10 new CHLs per square mile issued in 2010. Wow. Gotta love Tx.
Maybe you can check the same for your zip code and post if interested.

http://www.txdps.state.tx.us/administra ... tscy10.htm" onclick="window.open(this.href);return false;