is first mentioned in 1027 as Chuigeburch. A settlement close to the castle is first mentioned in the 1260s. It received its own jurisdiction and exemption from taxation from Albert II, Duke of Austria in 1337. After a fire in 1362, the town was rebuilt with ramparts and was granted a yearly and weekly market by Leopold III, Duke of Austria in 1370. Kyburg was occupied by Schwyz during the Appenzell Wars in 1407. It was partly destroyed in the Old Zürich War and rebuilt without fortification but retaining its market rights and jurisdiction. Kyburg lost all its privileges in 1798 and was incorporated as municipality in Fehraltdorf district. From 1803 to 1815 it was assigned to Uster-Grüningen district, from 1815 to 1831 it was once again administrative seat of a separate Oberamt Kyburg. From 1831 to 2015 it was a municipality in Pfäffikon district. On 1 January 2016 Kyburg was merged with the municipality of Illnau-Effretikon.
Geography
Kyburg has an area of. Of this area, 31.9% is used for agricultural purposes, while 61% is forested. Of the rest of the land, 5.4% is settled and the remainder is non-productive. housing and buildings made up 2.8% of the total area, while transportation infrastructure made up the rest. Of the total unproductive area, water made up 1.5% of the area. 2.4% of the total municipal area was undergoing some type of construction. The village is built on a Molasse stone outcropping in the Töss Valley. It is overlooked by the Kyburg castle, from which it takes its name. The municipality also includes the hamlets of Ettenhausen, portions of Billikon and Brünggen as well as the Fabriksiedlung or cloth manufacturing settlement of Mühlau an der Töss. It is.
Demographics
Kyburg has a population of. , 7.4% of the population was made up of foreign nationals. the gender distribution of the population was 49.6% male and 50.4% female. Over the last 10 years the population has grown at a rate of 1.5%. Most of the population speaks German , with Serbo-Croatian being second most common and Italian being third. In the 2007 election the most popular party was the SVP which received 47.4% of the vote. The next three most popular parties were the SPS, the Green Party and the FDP. The age distribution of the population is children and teenagers make up 26.3% of the population, while adults make up 64.4% and seniors make up 9.3%. The entire Swiss population is generally well educated. In Kyburg about 88.7% of the population have completed either non-mandatory upper secondary education or additional higher education. There are 150 households in Kyburg. Kyburg has an unemployment rate of 1.23%. , there were 25 people employed in the primary economic sector and about 11 businesses involved in this sector. 173 people are employed in the secondary sector and there are 3 businesses in this sector. 58 people are employed in the tertiary sector, with 12 businesses in this sector. 47.8% of the working population were employed full-time, and 52.2% were employed part-time. there were 66 Catholics and 222 Protestants in Kyburg. In the 2000 census, religion was broken down into several smaller categories. From the, 64.6% were some type of Protestant, with 59.8% belonging to the Swiss Reformed Church and 4.8% belonging to other Protestant churches. 17.7% of the population were Catholic. Of the rest of the population, 0% were Muslim, 0.5% belonged to another religion, 1.3% did not give a religion, and 15.4% were atheist or agnostic. The historical population is given in the following table:
