Freienwil is first mentioned around 1227–1234 as Friginwillare.
Geography
Freienwil has an area,, of. Of this area, 52.6% is used for agricultural purposes, while 38.5% is forested. The rest of the land is settled. The village lies in the eastern edge of the Siggenbergs in a valley between the Limmat and the Surb valleys. The Rickenbach is the main stream.
Coat of arms
The blazon of the municipal coat of arms is Azure a Garb Or in base sinister a Sickle Argent handled of the second.
Demographics
The historical population is given in the following table: Freienwil has a population of. , 11.1% of the population was made up of foreign nationals. Over the last 10 years the population has grown at a rate of 22.4%. Most of the population speaks German, with French being second most common and English being third. The age distribution,, in Freienwil is; 109 children or 12.4% of the population are between 0 and 9 years old and 112 teenagers or 12.7% are between 10 and 19. Of the adult population, 83 people or 9.4% of the population are between 20 and 29 years old. 92 people or 10.4% are between 30 and 39, 185 people or 21.0% are between 40 and 49, and 144 people or 16.3% are between 50 and 59. The senior population distribution is 91 people or 10.3% of the population are between 60 and 69 years old, 43 people or 4.9% are between 70 and 79, there are 21 people or 2.4% who are between 80 and 89,and there is 1 person who is between 90 and older. , there were 21 homes with 1 or 2 persons in the household, 112 homes with 3 or 4 persons in the household, and 145 homes with 5 or more persons in the household. The average number of people per household was 2.62 individuals. there were 192 single family homes out of a total of 347 homes and apartments. In the 2007 federal election the most popular party was the SVP which received 29.8% of the vote. The next three most popular parties were the SP, the CVP and the Green Party. In Freienwil about 85.5% of the population have completed either non-mandatory upper secondary education or additional higher education. Of the school age population, there are 96 students attending primary school in the municipality. The municipality has a kindergarten and a primary school.
Transportation
Freienwil lies on the little-used Kantonsstrasse between Ennetbaden and Lengnau. The village is served by the once-an-hour postbus operating on the Baden–Endingen–Tegerfelden route.
Economy
The local economy is limited to a number of jobs in agriculture, in trade and within the service range. Most employed persons are commuters and work in Baden and Zürich. , Freienwil had an unemployment rate of 0.78%. , there were 38 people employed in the primary economic sector and about 17 businesses involved in this sector. Eighten people are employed in the secondary sector and there are six businesses in this sector. Fifty-one people are employed in the tertiary sector, with 24 businesses in this sector. there were 396 total workers who lived in the municipality. Of these, 339 or about 85.6% of the residents worked outside Freienwil while 16 people commuted into the municipality for work. There were a total of 73 jobs in the municipality.