Sisikon has an area, as of 2006[update], of 16.3 km2 (6.3 sq mi). Of this area, 30.9% is used for agricultural purposes, while 44% is forested. Of the rest of the land, 1.2% is settled (buildings or roads) and the remainder (23.8%) is non-productive (rivers, glaciers or mountains).[3] In the 1993/97 land survey[update], 36.5% of the total land area was heavily forested, while 4.1% is covered in small trees and shrubbery. Of the agricultural land, 0.2% is used for farming or pastures, while 4.5% is used for orchards or vine crops and 26.3% is used for alpine pastures. Of the settled areas, 0.4% is covered with buildings, 0.2% is listed as parks and greenbelts and 0.6% is transportation infrastructure. Of the unproductive areas, 0.4% is unproductive standing water (ponds or lakes), 0.2% is unproductive flowing water (rivers), 7.7% is too rocky for vegetation, and 15.5% is other unproductive land.[4]
Sisikon has a population (as of 31 December 2020) of 383.[5] As of 2007[update], 6.8% of the population was made up of foreign nationals. Over the last 10 years the population has decreased at a rate of -2.8%. Most of the population (as of 2000[update]) speaks German (96.0%), with Italian being second most common ( 1.4%) and Serbo-Croatian being third ( 1.1%).[3] As of 2007[update] the gender distribution of the population was 51.8% male and 48.2% female.[6]
In Sisikon about 69.7% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either university or a Fachhochschule).[3]
Sisikon has an unemployment rate of 0.36%. As of 2005[update], there were 24 people employed in the primary economic sector and about 12 businesses involved in this sector. 11 people are employed in the secondary sector and there are 4 businesses in this sector. 90 people are employed in the tertiary sector, with 16 businesses in this sector.[3]
The historical population is given in the following table:[7]
