Complex sentence: There are many unincorporated areas adjacent to the city of Houma; the largest, Bayou Cane, is an urbanized area commonly referred to by locals as Houma but is not included in the 2000 census count, and is in fact a separate census-designated place.
Split into simpler sentences: There are many unincorporated areas adjacent to the city of Houma; the largest, Bayou Cane, is an urbanized area commonly referred to by locals as Houma. But, it is not included in the 2000 census count, and is in fact a separate census-designated place.