Uttwil is a municipality in the district of Arbon in the canton of Thurgau in Switzerland.

Uttwil has an area, as of 2009[update], of 4.34 square kilometers (1.68 sq mi).

Most of the population (as of 2000[update]) speaks German (94.2%), with Italian being second most common ( 2.0%) and Albanian being third ( 1.0%).

[5] The age distribution, as of 2009[update], in Uttwil is; 210 children or 12.3% of the population are between 0 and 9 years old and 199 teenagers or 11.6% are between 10 and 19.

[11] In the 2007 federal election the most popular party was the SVP which received 43.91% of the vote.

In the federal election, a total of 531 votes were cast, and the voter turnout was 49.2%.

[12] The historical population is given in the following table:[13] As of  2007[update], Uttwil had an unemployment rate of 1.29%.

[6] From the 2000 census[update], 464 or 32.2% were Roman Catholic, while 696 or 48.4% belonged to the Swiss Reformed Church.

Of the children in kindergarten, 14 or 31.8% are female, 6 or 13.6% are not Swiss citizens and 9 or 20.5% do not speak German natively.

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

The average class size in the primary school is 18.33 students.

At the lower primary level, there are 31 children or 50.8% of the total population who are female, 6 or 9.8% are not Swiss citizens and 7 or 11.5% do not speak German natively.

In the upper primary level, there are 18 or 36.7% who are female, 6 or 12.2% are not Swiss citizens and 7 or 14.3% do not speak German natively.

Finally, there are 111 teenagers who are in special or remedial classes, of which 51 or 45.9% are female, 11 or 9.9% are not Swiss citizens and 6 or 5.4% do not speak German natively.