On 1 December 2020 the South region will be expanded to include the municipality Sveitarfélagið Hornafjörður.

The municipal identifier for Sveitarfélagið Hornafjörður will at the same time be changed to 8401 (from 7708) in order to reflect this realignment.

The municipal identifiers 1952-2020 and the regional classification of Statistics Iceland 1920-2020 — Working paper