Complex sentence: As of the 2000 census, the city population was 6,244, however, the area is undergoing a period of rapid growth, and Census Bureau workers in 2005 estimated that the population is now around 10,000.
Split into simpler sentences: As of the 2000 census, the city population was 6,244. Since then, the area has been undergoing a period of rapid growth, with Census Bureau workers in 2005 estimating that the population is now around 10,000.