Leimbach is first mentioned in 1300 as Leimbach. During the Middle Ages the rights to collect tithes was divided between the Lords of Reinach, Hallwyl, Heidegg, Rupperswil, Büttikon, Falkenstein, Liebegg, and the Monastery at Beromünster. Starting in 1415 Leimbach was under Berner authority. At the behest of Bern, it broke away in 1528 from the Catholic parish of Pfeffikon and in 1529 joined the Reformed parish of Reinach. It wasn't until 1751 that the village received from Bern its own municipal law and mayor. In 1803, after the Act of Mediation, it became part of the newly formed Canton of Aargau. In the 18th and 19th Centuries the main sources of income were small scale cotton and tobacco production. Starting in the 1920s, a sheet metal and wire factory was built in the municipality.
Geography
Leimbach has an area,, of. Of this area, or 50.4% is used for agricultural purposes, while or 31.3% is forested. Of the rest of the land, or 15.7% is settled. Of the built up area, industrial buildings made up 3.5% of the total area while housing and buildings made up 9.6% and transportation infrastructure made up 2.6%. 31.3% of the total land area is heavily forested. Of the agricultural land, 28.7% is used for growing crops and 16.5% is pastures, while 5.2% is used for orchards or vine crops. The municipality is located in the Kulm district, in the upper Wynental.
Coat of arms
The blazon of the municipal coat of arms is Gules a Bend Sinister wavy Argent and in chief dexter a Mullet of the same.
Demographics
Leimbach has a population of , 7.1% of the population are foreign nationals. Over the last 10 years the population has changed at a rate of 13.1%. Most of the population speaks German, with Italian being second most common and Dutch being third. The age distribution,, in Leimbach is; 46 children or 10.7% of the population are between 0 and 9 years old and 48 teenagers or 11.2% are between 10 and 19. Of the adult population, 41 people or 9.6% of the population are between 20 and 29 years old. 58 people or 13.6% are between 30 and 39, 73 people or 17.1% are between 40 and 49, and 62 people or 14.5% are between 50 and 59. The senior population distribution is 45 people or 10.5% of the population are between 60 and 69 years old, 42 people or 9.8% are between 70 and 79, there are 12 people or 2.8% who are between 80 and 89,and there is 1 person who is between 90 and older. the average number of residents per living room was 0.53 which is about equal to the cantonal average of 0.57 per room. In this case, a room is defined as space of a housing unit of at least as normal bedrooms, dining rooms, living rooms, kitchens and habitable cellars and attics. About 77% of the total households were owner occupied, or in other words did not pay rent. , there were 7 homes with 1 or 2 persons in the household, 48 homes with 3 or 4 persons in the household, and 97 homes with 5 or more persons in the household. The average number of people per household was 2.63 individuals. , there were 155 private households in the municipality, and an average of 2.6 persons per household. there were 117 single family homes out of a total of 177 homes and apartments. There were a total of 1 empty apartments for a 0.6% vacancy rate. , the construction rate of new housing units was 4.6 new units per 1000 residents. In the 2007 federal election the most popular party was the SVP which received 47.4% of the vote. The next three most popular parties were the SP, the FDP and the CSP. The entire Swiss population is generally well educated. In Leimbach about 78.5% of the population have completed either non-mandatory upper secondary education or additional higher education. Of the school age population, there are 52 students attending primary school in the municipality. The historical population is given in the following table:
, Leimbach had an unemployment rate of 1.29%. , there were 25 people employed in the primary economic sector and about 8 businesses involved in this sector. 70 people are employed in the secondary sector and there are 7 businesses in this sector. 40 people are employed in the tertiary sector, with 11 businesses in this sector. there were 206 residents who worked in the municipality, while 155 residents worked outside Leimbach and 52 people commuted into the municipality for work. Of the working population, 13.1% used public transportation to get to work, and 50% used a private car.
