Mex is a former municipality in the district of Saint-Maurice, in the canton of Valais, Switzerland.

Of the rest of the land, 0.2 km2 (0.077 sq mi) or 2.5% is settled (buildings or roads), 0.14 km2 (35 acres) or 1.8% is either rivers or lakes and 2.68 km2 (1.03 sq mi) or 33.8% is unproductive land.

[4] The municipality is located in the Saint-Maurice district, on a high plateau (1,146 m [3,760 ft]) left of the Rhone river and east of the Dents du Midi mountain.

The blazon of the municipal coat of arms is Argent, between two Pine Trees Vert eradicated Gules and as many pallets wavy Azure three Houses Gules.

[3] The historical population is given in the following chart:[2][10] In the 2007 federal election the most popular party was the CVP which received 39.43% of the vote.

In the federal election, a total of 55 votes were cast, and the voter turnout was 51.9%.

[12] In the 2007 Swiss Council of States election a total of 51 votes were cast, of which 2 or about 3.9% were invalid.

[3] There were 48 residents of the municipality who were employed in some capacity, of which females made up 41.7% of the workforce.

In the tertiary sector; 2 or 10.0% were in a hotel or restaurant, 2 or 10.0% were in education and 16 or 80.0% were in health care.

[3] From the 2000 census[update], 71 or 67.0% were Roman Catholic, while 11 or 10.4% belonged to the Swiss Reformed Church.

The library has (as of 2008[update]) 5,740 books or other media, and loaned out 2,193 items in the same year.

It was open a total of 34 days with average of 6 hours per week during that year.