Simplify the following text for a Grade 6 native English-speaking person.
Original: In 2001 , the last year where Forest was a national census unit , the town had a population of 2,857 , and the average age was about 42 ; five years older than the provincial average .
Simplified: In 2001 , the last year that Forest was a national census unit , the town had a population of 2,857 . The average age of the people who live in Forest was about 42 .