municipality. There were 2,128 married individuals, 265 widows or widowers and 187 individuals who are divorced. , there were 1,720 private households in the municipality, and an average of 2.4 persons per household. There were 570 households that consist of only one person and 145 households with five or more people. Out of a total of 1,764 households that answered this question, 32.3% were households made up of just one person and there were 9 adults who lived with their parents. Of the rest of the households, there are 429 married couples without children, 609 married couples with children. There were 89 single parents with a child or children. There were 14 households that were made up of unrelated people and 44 households that were made up of some sort of institution or another collective housing. there were 296 single family homes (or 40.9% of the total) out of a total of 724 inhabited buildings. There were 189 multi-family buildings (26.1%), along with 124 multi-purpose buildings that were mostly used for housing (17.1%) and 115 other use buildings (commercial or industrial) that also had some housing (15.9%). Of the single family homes 67 were built before 1919, while 16 were built between 1990 and 2000. The most multi-family homes (66) were built before 1919 and the next most (36) were built between 1946 and 1960. There were 3 multi-family houses built between 1996 and 2000. there were 2,000 apartments in the municipality. The most common apartment size was 3 rooms of which there were 712. There were 141 single room apartments and 348 apartments with five or more rooms. Of these apartments, a total of 1,676 apartments (83.8% of the total) were permanently occupied, while 204 apartments (10.2%) were seasonally occupied and 120 apartments (6.0%) were empty. , the construction rate of new housing units was 5.9 new units per 1000 residents. The vacancy rate for the municipality, , was 0.62%. The historical population is given in the following chart: Heritage sites of national significance The Ancien Grenier, the Swiss Reformed Church of Saint-Étienne, the Fountain de Moïse (Moses Fountain), the City Hall, the D’Arnay House, the États de Vaud House, the Loys de Villardin House, the De Rochefort House, the Tacheron House and the Castle Tower are listed as Swiss heritage site of national significance. Twin Town Moudon is twinned with: Mazan, France Politics In the 2007 federal election