Of the rest of the land, 1.9% is settled (buildings or roads) and the remainder (40.5%) is non-productive (rivers, glaciers or mountains).

The municipality is in a hazardous location, avalanches (Munt, Cavistrau), rock slides and flooding (Zavragia, Zinzera and Rhein rivers) all threaten the village.

[9] The age distribution, as of 2000[update], in Trun is; 156 children or 11.8% of the population are between 0 and 9 years old and 175 teenagers or 13.2% are between 10 and 19.

[5] From the 2000 census[update], 1,199 or 90.7% are Roman Catholic, while 38 or 2.9% belonged to the Swiss Reformed Church.

The wettest month is August during which time Trun receives an average of 110 mm (4.3 in) of precipitation.

The driest month of the year is February with an average of 70 mm (2.8 in) of precipitation over 12.4 days.

[10] The Cuort Ligia Grischa house is listed as a Swiss heritage site of national significance.