In the 2007 federal election the most popular party was the SVP which received 37.9% of the vote. The next three most popular parties were the CVP (18.2%), the SP (16.7%) and the FDP (12.7%). The entire Swiss population is generally well educated. In Eiken about 73.1% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either university or a "Fachhochschule"). Of the school age population (), there are 139 students attending primary school, there are 64 students attending secondary school in the municipality. The historical population is given in the following table: , Eiken had an unemployment rate of 2.39%. , there were 49 people employed in the primary economic sector and about 13 businesses involved in this sector. 557 people are employed in the secondary sector and there are 18 businesses in this sector. 242 people are employed in the tertiary sector, with 41 businesses in this sector. From the , 1,024 or 58.5% were Roman Catholic, while 437 or 25.0% belonged to the Swiss Reformed Church. Of the rest of the population, there were 15 individuals (or about 0.86% of the population) who belonged to the Christian Catholic faith. The municipality is located on the A3 motorway. Eiken sits on the Bözberg line and served by local trains at Eiken.