The present municipality was created in 1974 through the amalgamation of previous units.

Approximate inhabitants of the larger population centres in the municipality.

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

[3] In total there were 9,117 residents, including 7,627 Swedish citizens of voting age.

It dominated the industry for centuries; herring was used in large amounts in Bohuslän - as a basic food but also in the making of oil, wax candles, etc.