Complex sentence: Aldeburgh ward, which includes Thorpeness and some other communities, had a population of 3225 in the 2011 census, when the mean age of the inhabitants was 55 and the median age 61.
Split into simpler sentences: Aldeburgh ward, which includes Thorpeness and some other smaller communities, had a population of 3225 in the 2011 census. The mean age of the inhabitants was 55 and the median age 61.