Complex sentence: In public perception, the term "Wellington region" is much smaller, and is not likely to include either the Kapiti Coast or the Wairarapa, both of which have their own distinct communities and identities.
Split into simpler sentences: In public perception, the term "Wellington region" is much smaller. For some people, it is unlikely to include either the Kapiti Coast or the Wairarapa, both of which have their own distinct communities and identities.