Effective from 1 January 2011, Mühlehorn is part of the municipality of Glarus Nord.

Of the rest of the land, 3.9% is settled (buildings or roads) and the remainder (9.9%) is non-productive (rivers, glaciers or mountains).

It consists of the village of Mühlehorn and the hamlets of Vortobel, Tiefenwinkel and Mühletal which are on the north-east border of the canton.

Most of the population (as of 2000[update]) speaks German (88.9%), with Serbo-Croatian being second most common ( 7.9%) and Italian being third ( 1.1%).

[2] During the 2007 federal election, the most popular party was the SPS which received 54% of the vote.