Affeltrangen is a municipality in the district of Münchwilen in the canton of Thurgau in Switzerland.

[4] In the 8th and 9th Centuries, the Abbey of St. Gall acquired property in Affeltragen.

[3] Affeltrangen has an area, as of 2009[update], of 14.42 square kilometers (5.57 sq mi).

while parks, green belts and sports fields made up 3.4%.

Most of the population (as of 2000[update]) speaks German (91.8%), with Italian being second most common ( 2.5%) and Albanian being third ( 1.9%).

[7] The age distribution, as of 2009[update], in Affeltrangen is; 264 children or 11.5% of the population are between 0 and 9 years old and 303 teenagers or 13.2% are between 10 and 19.

[13] In the 2007 federal election the most popular party was the SVP which received 57.01% of the vote.

In the federal election, a total of 761 votes were cast, and the voter turnout was 49.4%.

[14] The historical population is given in the following table:[3][15] As of  2007[update], Affeltrangen had an unemployment rate of 1.37%.

[8] From the 2000 census[update], 765 or 35.8% were Roman Catholic, while 985 or 46.1% belonged to the Swiss Reformed Church.

[17] Affeltrangen sits on the Wil–Kreuzlingen line between Wil and Weinfelden and is served by the St. Gallen S-Bahn at Märwil railway station.

The wettest month is June during which time Affeltrangen receives an average of 117 mm (4.6 in) of rain.

The month with the most days of precipitation is May, with an average of 13.5, but with only 107 mm (4.2 in) of rain or snow.

The driest month of the year is February with an average of 58 mm (2.3 in) of precipitation over 12.6 days.