Acquarossa is the capital of the district of Blenio in the canton of Ticino in Switzerland.

The municipality was created on 4 April 2004 by a merger of Castro, Corzoneso, Dongio, Largario, Leontica, Lottigna, Ponto Valentino and Prugiasco.

The name of the new community was selected from the one located at its centre: Acquarossa, a tourist resort.

The surrounding communities are, starting North, following the hands of a watch: Olivone, Aquila, Torre, Malvaglia and Ludiano, as well as Sobrio, Cavagnago, Anzonico and Faido in the district of the Leventina.

Most of the population (as of 2000[update]) speaks Italian (88.1%), with German being second most common ( 7.0%) and Albanian being third ( 1.6%).

[13] The age distribution, as of 2009[update], in Acquarossa is; 153 children or 8.3% of the population are between 0 and 9 years old and 204 teenagers or 11.1% are between 10 and 19.

[16] About 63.8% of the total households were owner occupied, or in other words did not pay rent (though they may have a mortgage or a rent-to-own agreement).

In the federal election, a total of 555 votes were cast, and the voter turnout was 38.9%.

[18] In the 2007[update] Ticino Gran Consiglio election, there were a total of 1,446 registered voters in Acquarossa, of which 771 or 53.3% voted.

In the lower secondary school system, students either attend a two-year middle school followed by a two-year pre-apprenticeship or they attend a four-year program to prepare for higher education.

The professional program lasts three years and prepares a student for a job in engineering, nursing, computer science, business, tourism and similar fields.

[21] Watchmaking workshops and small watch companies, e.g. Adriatica in Dongio, provide jobs to a good part of the population.

[22] Well above Prugiasco stands the Romanesque church of San Carlo di Negrentino (up to 1702: cant "Sant' Ambrogio"), begun in the 11th century and completed in the 12th.

Acquarossa is twinned with the following cities (date of agreement shown in parentheses).