Complex sentence: Within 100 kilometres from Kramfors there is a population of about 250,000 people, and within 200 kilometres about half a million people, and the large Norrland towns of Sundsvall and Umeå are within commuting distance.
Split into simpler sentences: Within 100 kilometres from Kramfors there is a population of about 250,000 people, and within 200 kilometres about half a million people. Furthermore, the large Norrland towns of Sundsvall and Umeå are situated within commuting distance.