Dagmersellen is a municipality in the district of Willisau in the canton of Lucerne in Switzerland. On 1 January 2006, the former municipalities of Buchs and Uffikon were merged into Dagmersellen, causing a one-third increase in its population and a marked increase in its territorial area. History Dagmersellen is first mentioned around 1070–1090 as Tagmarsellen. In 1173 it was mentioned as Tagemarsseildon. Geography Dagmersellen has an area, , of . Of this area, 54.5% is used for agricultural purposes, while 34% is forested. Of the rest of the land, 10.2% is settled (buildings or roads) and the remainder (1.3%) is non-productive (rivers, glaciers or mountains). , 33.91% of the total land area was forested. Of the agricultural land, 50.86% is used for farming or pastures, while 3.73% is used for orchards or vine crops. Of the settled areas, 3.9% is covered with buildings, 0.88% is industrial, 0.42% is classed as special developments, 0.21% is parks or greenbelts and 4.78% is transportation infrastructure. Of the unproductive areas, 0.17% is unproductive standing water (ponds or lakes), 0.55% is unproductive flowing water (rivers) and 0.59% is other unproductive land. The municipality is located in the lower Wiggertal, on the A2 motorway between Basel and Lucerne. It consists of the linear village of Dagmersellen. Demographics Dagmersellen has a population (as of ) of . , 605 or about 12.5% are not Swiss citizens. Over the last 10 years the population has grown at a rate of 9%. Most of the population () speaks German (91.0%), with Albanian being second most common ( 2.2%) and Italian being third ( 1.6%). In the 2007 election the most popular party was the CVP which received 37.4% of the vote. The next three most popular parties were the SVP (26.7%), the FDP (24.5%) and the SPS (5.8%). The age distribution, , in Dagmersellen is; 1,112 people or 22.9% of the population is 0–19 years old. 1,514 people or 31.2% are 20–39 years old, and 1,584 people or 32.7% are 40–64 years old. The senior population distribution is 474 people or 9.8% are 65–79 years old, 136 or 2.8% are 80–89 years old and 27 people or 0.6% of the population are 90+ years old. The entire Swiss population is generally well educated. In Dagmersellen about 66.4% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either University or a Fachhochschule).