Complex sentence: It is located to the north of Antigua in the middle of the Leeward Islands, and has a population of about 1,638 (at the 2011 Census), most of whom live in the town of Codrington.
Split into simpler sentences: It is located to the north of Antigua in the middle of the Leeward Islands. Most of its population of about 1,638 (at the 2011 Census) live in the town of Codrington.