Wiliberg has an area,, of. Of this area, or 72.6% is used for agricultural purposes, while or 17.9% is forested. Of the rest of the land, or 12.0% is settled. Of the built up area, housing and buildings made up 4.3% and transportation infrastructure made up 6.8%. Out of the forested land, all of the forested land area is covered with heavy forests. Of the agricultural land, 16.2% is used for growing crops and 52.1% is pastures, while 4.3% is used for orchards or vine crops.
Coat of arms
The blazon of the municipal coat of arms is Per fess Argent a Vine branch Vert leaved of two of the same and fructed Azure and Azure a base-semi Mill-Wheel Or.
Demographics
Wiliberg has a population of , 2.5% of the population are foreign nationals. Over the last 10 years the population has changed at a rate of 2.6%. All of the population speaks German. The age distribution,, in Wiliberg is; 20 children or 12.5% of the population are between 0 and 9 years old and 20 teenagers or 12.5% are between 10 and 19. Of the adult population, 15 people or 9.4% of the population are between 20 and 29 years old. 18 people or 11.3% are between 30 and 39, 32 people or 20.0% are between 40 and 49, and 28 people or 17.5% are between 50 and 59. The senior population distribution is 11 people or 6.9% of the population are between 60 and 69 years old, 10 people or 6.3% are between 70 and 79, there are 4 people or 2.5% who are between 80 and 89,and there are 2 people or 1.3% who are 90 and older. , there were no homes with 1 or 2 persons in the household, 18 homes with 3 or 4 persons in the household, and 30 homes with 5 or more persons in the household. , there were 50 private households in the municipality, and an average of 3. persons per household. there were 30 single family homes out of a total of 63 homes and apartments. There were a total of 1 empty apartments for a 1.6% vacancy rate. , the construction rate of new housing units was 0 new units per 1000 residents. In the 2007 federal election the SVP received 61.04% of the vote. Most of the rest of the votes went to the SP with 9.13% of the vote. In the federal election, a total of 70 votes were cast, and the voter turnout was 57.4%. The historical population is given in the following table:
Economy
, Wiliberg had an unemployment rate of 0.66%. , there were 21 people employed in the primary economic sector and about 9 businesses involved in this sector. 1 person is employed in the secondary sector and there is 1 business in this sector. 10 people are employed in the tertiary sector, with 3 businesses in this sector. there were 86 workers who lived in the municipality. Of these, 51 or about 59.3% of the residents worked outside Wiliberg while 4 people commuted into the municipality for work. There were a total of 39 jobs in the municipality. Of the working population, 0% used public transportation to get to work, and 63.6% used a private car.
