with 52 multi-purpose buildings that were mostly used for housing (26.8%) and 8 other use buildings (commercial or industrial) that also had some housing (4.1%). Of the single family homes 44 were built before 1919, while 10 were built between 1990 and 2000. The most multi-family homes (14) were built before 1919 and the next most (4) were built between 1919 and 1945. There was 1 multi-family house built between 1996 and 2000. there were 257 apartments in the municipality. The most common apartment size was 3 rooms of which there were 60. There were 6 single room apartments and 119 apartments with five or more rooms. Of these apartments, a total of 234 apartments (91.1% of the total) were permanently occupied, while 18 apartments (7.0%) were seasonally occupied and 5 apartments (1.9%) were empty. , the construction rate of new housing units was 0 new units per 1000 residents. The vacancy rate for the municipality, , was 0.67%. The historical population is given in the following chart: Sights The entire village of Essertines-sur-Yverdon is designated as part of the Inventory of Swiss Heritage Sites. Politics In the 2007 federal election the most popular party was the SVP which received 40.19% of the vote. The next three most popular parties were the SP (18.19%), the Green Party (10.16%) and the CVP (7.72%). In the federal election, a total of 243 votes were cast, and the voter turnout was 42.9%. Economy , Essertines-sur-Yverdon had an unemployment rate of 4.8%. , there were 45 people employed in the primary economic sector and about 19 businesses involved in this sector. 40 people were employed in the secondary sector and there were 10 businesses in this sector. 71 people were employed in the tertiary sector, with 20 businesses in this sector. There were 323 residents of the municipality who were employed in some capacity, of which females made up 41.5% of the workforce. the total number of full-time equivalent jobs was 128. The number of jobs in the primary sector was 35, all of which were in agriculture. The number of jobs in the secondary sector was 34 of which 18 or (52.9%) were in manufacturing and 16 (47.1%) were in construction. The number of jobs in the tertiary sector was 59. In the tertiary sector; 32 or 54.2% were in wholesale or retail sales or the repair of motor vehicles, 10 or 16.9%