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

Of the rest of the land, 10.6% is settled (buildings or roads) and the remainder (6.4%) is non-productive (rivers, glaciers or mountains).

[2] Niederurnen is located in the Glarner Unterland at the mouth of the Niederurnertal or Alpental valley.

It consists of the village of Niederurnen and the industrial park of Ziegelbrücke, which is separated from the rest of the municipality by the A3 highway.

[2] In the 2007 federal election the most popular party was the SPS which received 61.9% of the vote.