Simplify the following text for a Grade 3 native English-speaking person.
Original: With an estimated population of 8,986 in 2005 , Sitka is the fourth-largest city by population in Alaska . Urban Sitka ( Downtown ) , the part that is usually thought of as the `` city '' of Sitka , is situated on the west side of Baranof Island .
Simplified: Sitka is a city in Alaska .