Birwinken is a municipality in the district of Weinfelden in the canton of Thurgau in Switzerland.

[3] In the 14th century, Birwinken and Dotnacht formed a distant part of the Herrschaft of Spiegelberg near Weingarten.

By 1400, the parish was under the Augustinian monastery in Constance, and until the Protestant Reformation in 1529, was overseen by a monk.

[3] In the 19th century the village economy add animal husbandry to the traditional agriculture and fruit growing.

However, the decline of the textile industry in the 20th century and village's remoteness led to high levels of emigration.

[3] Birwinken has an area, as of 2009[update], of 12.35 square kilometers (4.77 sq mi).

Of the rest of the land, 0.85 km2 (0.33 sq mi) or 6.9% is settled (buildings or roads), 0.05 km2 (12 acres) or 0.4% is either rivers or lakes.

[4] The municipality is located in the Weinfelden district, on the southern slope of the Bodenseerücken mountains about 2 km (1.2 mi) east of Berg.

It consists of the villages of Birwinken, Andwil, Happerswil-Buch, Klarsreuti and Mattwil.

[7] The age distribution, as of 2009[update], in Birwinken is; 161 children or 12.4% of the population are between 0 and 9 years old and 199 teenagers or 15.4% are between 10 and 19.

[13] In the 2007 federal election the most popular party was the SVP which received 56.36% of the vote.

[8] From the 2000 census[update], 246 or 20.2% were Roman Catholic, while 694 or 57.1% belonged to the Swiss Reformed Church.

[8] Birwinken is home to the Berg-Birwinken primary and secondary school district.

Of the children in kindergarten, 55 or 53.9% were female, 11 or 10.8% were not Swiss citizens and 6 or 5.9% did not speak German natively.

The lower and upper primary levels begin at about age 5-6 and last for 6 years.

At the lower primary level, there were 77 children or 48.1% of the total population who were female, 15 or 9.4% were not Swiss citizens and 10 or 6.3% did not speak German natively.

In the upper primary level, there were 71 or 46.7% who were female, 13 or 8.6% were not Swiss citizens and 5 or 3.3% did not speak German natively.

There were 57 teenagers who were in the standard school, of which 26 or 45.6% were female, 5 or 8.8% were not Swiss citizens and 4 or 7.0% did not speak German natively.