Some of the villages in the municipality include Bangsund, Klinga, Ramsvika, Skomsvoll, Spillum, Sævik, Dun, Salsnes, Nufsfjord, Lund, Namdalseid, Sjøåsen, Statland, Tøttdalen, and Sverkmoen.

[8][9] On 1 January 2020, the national government approved a merger of three municipalities: Fosnes, Namdalseid, and Namsos.

Upon the merger, the new municipality would have two co-equal, official names: Namsos (Norwegian) and Nåavmesjenjaelmie (Southern Sami).

It is called Nåavmesjenjaelmie when it is spelled alone, but it is Nåavmesjenjaelmien tjïelte when using the Sami language equivalent to "Namsos municipality".

[11] They were re-granted on 21 October 1966 when the town was merged with neighboring areas to create a new, larger Namsos Municipality.

[12] The official blazon is "Gules, a moose head couped Or" (Norwegian: På rød bunn et gull elghode).

The moose head has a tincture of Or which means it is commonly colored yellow, but if it is made out of metal, then gold is used.

It had been decided to build Namsos Church in the growing town in March 1859; the construction was finished in November.

Consisting mostly of wooden houses, the town of Namsos has been burned down to the ground on three occasions during its relatively short history.

The third time was during World War II when the town was bombed by German airplanes on 20 April 1940.

Areas of Vemundvik Municipality lying adjacent to the town of Namsos were later incorporated within the city limits on numerous occasions.

The main part of the town of Namsos is built on a small, low-lying promontory which extends into the bay.

To the north, low forested hills rise fairly steeply to over 200 metres (660 ft).

There is a viewpoint from the hills above the city which is called Klompen with a height of 114 metres (374 ft) with a road for cars up to the top that is open each summer.

To the south over the bay and mouth of the river Namsen are hills that reach 440 metres (1,440 ft).

The weather station is near the small airport, situated about 3 kilometres (1.9 mi) inland from Namsos along the river.

The municipal council (Kommunestyre) of Namsos is made up of 35 representatives that are elected to four year terms.