New Zealand - Carterton - Carterton School - Room 3 - 1990 Do you have more information about the school or the people in this photo? Please use the comment section below to share. To search for other photos from this school, please type the schools name in to our search engine. Carterton - A small town in the Wellington Region - It lies in a farming area of the Wairarapa. - Located 14 kilometres southwest of Masterton - 80 kilometres northeast of Wellington - A population of 5,320 (June 2018), out of a total district population of 9,480. - Carterton was founded in 1857. - Originally known as Three Mile Bush - Later renamed after Charles Carter