The total number of inhabitants in Norðurþing is approximately 2900, about 86% of the population live in Húsavík (2200) and the small villages Raufarhöfn (200) and Kópasker (120). The remaining population lives in rural areas, mostly east of Húsavík.
The municipality is one of the largest in Iceland in geographical terms or a total of 3800 km2. The road from Húsavík to Raufarhöfn, the northernmost village in the municipality is 138 km long.
