Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Oberkirch is a municipality in the district of Sursee in the canton of Lucerne in Switzerland. Oberkirch has an area of 9.1 square kilometers (3.5 sq mi). Of this area, 74.2% is used for agricultural purposes, while 13.4% is forested. Of the rest of the land, 12.1% is settled (buildings or roads) and the remainder (0.3%) is non-productive (rivers, glaciers or mountains). In the 1997 land survey, 13.5% of the total land area was forested. Of the agricultural land, 64.98% is used for farming or pastures, while 9.11% is used for orchards or vine crops. Of the settled areas, 6.37% is covered with buildings, 0.99% is industrial, 0.44% is classed as special developments, 0.66% is parks or greenbelts and 3.62% is transportation infrastructure. Of the unproductive areas, and 0.33% is other unproductive land. The municipality is located southwest of Lake Sempach (Sempachersee). It consists of the village of Oberkirch and the hamlets of Dogelzwil, Oberhof, Unterhof and Zellhüsli.