High Quality Content by WIKIPEDIA articles! Walliswil bei Niederbipp is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland.WAlliswil bei Niederbipp has an area of 1.4 square kilometers (0.5 sq mi). OF this area, 53.5% is used for agricultural purposes, while 18.8% is forested. OF the rest of the land, 17.4% is settled (buildings or roads) and the remainder (10.4%) is non-productive (rivers, glaciers or mountains).WAlliswil bei Niederbipp has a population (as of 31 December 2008) of 215. AS of 2007, 1.3% of the population was made up of foreign nationals. OVer the last 10 years the population has grown at a rate of 5.7%. MOst of the population (as of 2000[update]) speaks German (99.2%), with English being second most common ( 0.4%) and Russian being third ( 0.4%).