The new, merged municipality covers an area of 540.18 km², and has a total population of 27,119 (2024).

On 1 January 2007, as a result of Kommunalreformen ("The Municipal Reform" of 2007), approved by the lawmakers in Folketinget 16 June 2005, and, after the signature by the head of state, published in Lovtidende, and being in effect from 26 June 2005, the new municipality was formed.

The first election to the municipal council in the new municipality (and the regional council in the new region) was held 15 November 2005, which was the regular date of elections once every four years.

The municipality is part of the Triangle Region and of the East Jutland metropolitan area, which had a total population of 1.378 million in 2016.

[3][4] Billund's municipal council consists of 25 members, elected every four years.