The municipality has a small archipelago with some 30 islands, called Tösse skärgård, to the south of the city.

They provide habitat for a number of bird species, including grey heron, osprey, mallard, goldeneye, goosander, the black-throated diver and hobby in the bays; on the cobs are colonies of herring gull, and the common tern; while on the fir-covered islands are capercaillie, woodpeckers and other birds.

Population centers in the municipality include Åmål, Fengersfors, and Tösse.

This is a demographic table based on Åmål Municipality's electoral districts in the 2022 Swedish general election sourced from SVT's election platform, in turn taken from SCB official statistics.

In recent years tourism, especially activities connected to the use of the lake, have increased.