Complex sentence: Goodlettsville was incorporated as a city in 1958 with a population of just over 3,000 residents; at the 2000 census, the city had a total population of 13,780.
Split into simpler sentences: Goodlettsville was incorporated as a city in 1958 with a population of just over 3,000 residents. As of the 2000 census, the city had a total population of 13,780.