Rumisberg is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland.

Of the rest of the land, 7.4% is settled (buildings or roads) and the remainder (0.8%) is non-productive (rivers, glaciers or mountains).

[4] The municipality includes the village of Rumisberg, the hamlets of Schoren and Weissacker-Falken and scattered individual houses.

It is located on several terraces scattered along the southern slope of the Jura mountains, ranging in altitude from 550 to 1,232 meters (1,804 to 4,042 ft) above sea level.

Most of the population (as of 2000[update]) speaks German (98.5%), with Italian being second most common ( 0.4%) and Serbo-Croatian being third ( 0.4%).