Complex sentence: As of 2000, Barton Creek is the wealthiest location in Texas by per capita income with a population of at least one thousand, and is the second wealthiest location in Texas overall, behind Piney Point Village.
Split into simpler sentences: As of 2000, Barton Creek is the wealthiest location in Texas by per capita income with a population of at least one thousand. Overall, however, it is the second wealthiest location in Texas, behind Piney Point Village.