High Quality Content by WIKIPEDIA articles! Ochlenberg is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland. Ochlenberg has a population (as of 31 December 2008) of 593. As of 2007, 1.0% of the population was made up of foreign nationals. Over the last 10 years the population has decreased at a rate of -11.9%. Most of the population (as of 2000) speaks German (99.4%), with French being second most common ( 0.5%) and Russian being third ( 0.2%).