Ignoring immigration and emigration, the population of Swiss citizens increased by 2 while the foreign population remained the same. At the same time, there were 2 non-Swiss men who immigrated from another country to Switzerland. The total Swiss population change in 2008 (from all sources, including moves across municipal borders) was an increase of 37 and the non-Swiss population decreased by 6 people. This represents a population growth rate of 4.9%. The age distribution, , in Poliez-Pittet is; 74 children or 11.1% of the population are between 0 and 9 years old and 94 teenagers or 14.1% are between 10 and 19. Of the adult population, 72 people or 10.8% of the population are between 20 and 29 years old. 98 people or 14.7% are between 30 and 39, 128 people or 19.2% are between 40 and 49, and 73 people or 11.0% are between 50 and 59. The senior population distribution is 71 people or 10.7% of the population are between 60 and 69 years old, 39 people or 5.9% are between 70 and 79, there are 13 people or 2.0% who are between 80 and 89, and there are 3 people or 0.5% who are 90 and older.  , there were 223 people who were single and never married in the municipality. There were 283 married individuals, 16 widows or widowers and 21 individuals who are divorced.  , there were 212 private households in the municipality, and an average of 2.5 persons per household. There were 48 households that consist of only one person and 9 households with five or more people. Out of a total of 215 households that answered this question, 22.3% were households made up of just one person. Of the rest of the households, there are 56 married couples without children, 84 married couples with children There were 19 single parents with a child or children. There were 5 households that were made up of unrelated people and 3 households that were made up of some sort of institution or another collective housing. The historical population is given in the following chart: In the 2007 federal election the most popular party was the SVP which received 32.96% of the vote. The next three most popular parties were the CVP (21.06%), the SP (14.59%) and the FDP (12.05%). In the federal election, a total of 201 votes were cast, and the voter turnout was 45.8%.