Vorderthal is a municipality in March District in the canton of Schwyz in Switzerland.

Of the rest of the land, 2% is settled (buildings or roads) and the remainder (2.9%) is non-productive (rivers, glaciers or mountains).

Most of the population (as of 2000[update]) speaks German (98.3%), with Albanian being second most common ( 0.5%) and Italian being third ( 0.4%).

[3] From the 2000 census[update], 831 or 84.1% are Roman Catholic, while 80 or 8.1% belonged to the Swiss Reformed Church.

There are less than 5 individuals who belong to another church (not listed on the census), 27 (or about 2.73% of the population) belong to no church, are agnostic or atheist, and 40 individuals (or about 4.05% of the population) did not answer the question.