The image below shows the difference between the skies in an city\urban environment compared to those found at the Stellar Skies Dark Sky Site which are between Bortle 1 and 2.
The Night Skies
Cedar Park\Round Rock
Canyon of the Eagles
Stellar Skies Dark Sky Site
This next image shows a Google map of the Austin, San Antonio, and Houston areas with the light pollution overlay applied.
The Stellar Skies Dark Sky Site is well away from any light pollution as you can see from the Google light pollution overlay map. You will have access to some of the darkest skies well within reach of the Austin\San Antonio corridor.
Just for reference here are the Bortle ratings for skies around the Austin area compared to the Stellar Skies Dark Sky Site: