The number of inhabitants rose at one moment in 2012, but in 2014, after the fish factory closed, the population declined dramatically with the departure of the eastern European fishermen.

[7] On 1 January 2020, the municipality became part of the newly formed Troms og Finnmark county.

This means the arms have a red field (background) and the charge is three fishing net sewing needles that are arranged diagonally.

The net needles have a tincture of Or which means it is commonly colored yellow, but if it is made out of metal, then gold is used.

These needles are a characteristic maritime tool used for making and mending the fishing nets used by local fishermen.

In June 1972 construction started for [a landside terminal and] running a SOSUS cable into the sea.

[14] On 12 March 1982, a Widerøe Twin Otter, registration number LN-BNK, crashed into the sea near Mehamn, killing all fifteen on board.

More than twenty years and four rounds of investigation later, this incident remained highly controversial in Norway.

The municipal council (Kommunestyre) of Gamvik is made up of 13 representatives that are elected to four year terms.

The mayors (Norwegian: ordfører) of Gamvik: The municipality consists of the eastern half of the Nordkinn Peninsula.

Slettnes Lighthouse, located on an exposed headland in the northern part of the municipality, is the only remaining weather station in mainland Norway with a tundra climate with the 1991-2020 normals.