Complex sentence: The presence of a prison unit in the city considerably skews the demographics, as the two prison units house approximately 1,250 inmates at any time, making the actual population of the city closer to 3,835.
Split into simpler sentences: The presence of a prison unit in the city skews the demographics of the city considerably. The two prison units house approximately 1,250 inmates at any given time, making the actual population of the city closer to 3,835.