Wildberg is a municipality in the district of Pfäffikon in the canton of Zürich in Switzerland. Wildberg has an area of 10.6 km². Of this area, 54.6…Wildberg is a municipality in the district of Pfäffikon in the canton of Zürich in Switzerland. Wildberg has an area of 10.6 km². Of this area, 54.6% is used for agricultural purposes, while 36.9% is forested. Of the rest of the land, 6.7% is settled and the remainder is non-productive. In 1996 housing and buildings made up 4.5% of the total area, while transportation infrastructure made up the rest. Of the total unproductive area, water made up 0.4% of the area. As of 2007 3% of the total municipal area was undergoing some type of construction.