The Vallemaggia District is a district of the canton of Ticino in Switzerland. It has a population of (as of ). The capital of the district is Cevio.
The Vallemaggia District has an area,, of 569.42 km2. Of this area, 9.61 km2 or 1.7% is used for agricultural purposes, while 240.5 km2 or 42.2% is forested. Of the rest of the land, 6.57 km2 or 1.2% is settled (buildings or roads), 15.46 km2 or 2.7% is either rivers or lakes and 244.24 km2 or 42.9% is unproductive land.
Of the built up area, housing and buildings made up 0.4% and transportation infrastructure made up 0.4%. Out of the forested land, 31.4% of the total land area is heavily forested and 4.8% is covered with orchards or small clusters of trees. Of the agricultural land, 1.1% is used for growing crops. Of the water in the district, 0.7% is in lakes and 2.0% is in rivers and streams. Of the unproductive areas, 18.9% is unproductive vegetation and 24.0% is too rocky for vegetation.
