In the federal election, a total of 154 votes were cast, and the voter turnout was 47.4%. , Oulens-sous-Échallens had an unemployment rate of 3%. , there were 34 people employed in the primary economic sector and about 15 businesses involved in this sector. 16 people were employed in the secondary sector and there were 8 businesses in this sector. 62 people were employed in the tertiary sector, with 15 businesses in this sector. There were 228 residents of the municipality who were employed in some capacity, of which females made up 45.2% of the workforce.  , there were 25 workers who commuted into the municipality and 158 workers who commuted away. The municipality is a net exporter of workers, with about 6.3 workers leaving the municipality for every one entering. Of the working population, 3.5% used public transportation to get to work, and 69.7% used a private car. From the , 68 or 15.9% were Roman Catholic, while 280 or 65.6% belonged to the Swiss Reformed Church. Of the rest of the population, there were 4 individuals (or about 0.94% of the population) who belonged to the Christian Catholic Church, and there were 22 individuals (or about 5.15% of the population) who belonged to another Christian church. There were 3 (or about 0.70% of the population) who were Islamic. There were 1 individual who belonged to another church. 40 (or about 9.37% of the population) belonged to no church, are agnostic or atheist, and 19 individuals (or about 4.45% of the population) did not answer the question. In Oulens-sous-Échallens about 164 or (38.4%) of the population have completed non-mandatory upper secondary education, and 63 or (14.8%) have completed additional higher education (either university or a "Fachhochschule"). Of the 63 who completed tertiary schooling, 58.7% were Swiss men, 23.8% were Swiss women, 11.1% were non-Swiss men. In the 2009/2010 school year there were a total of 62 students in the Oulens-sous-Échallens school district. In the Vaud cantonal school system, two years of non-obligatory pre-school are provided by the political districts. During the school year, the political district provided pre-school care for a total of 296 children of which 96 children (32.4%) received subsidized pre-school care.