Other villages in Tjøme included Bjørnevåg, Grimestad, Hulebakk, Ormelet, Solvang, Sundene, and Svelvik.

[8] The parish of Tjømø (later spelled Tjøme) was established as a municipality on 1 January 1838 (see formannskapsdistrikt law).

The name may be derived from the word taumr which means "bridle" or "rope", likely referring to the shape of the island.

The official blazon is "Azure, three oarlocks argent, 2 over 1" (Norwegian: I blått tre sølv åregafler, 2-1).

The charge has a tincture of argent which means it is commonly colored white, but if it is made out of metal, then silver is used.

There are a few other central areas on the islands such as Hvasser, with active fishermen as well as the tourist industry for the travelers passing through.

Hvasser has an icebar, shops, petrol station, and a number of places to buy food and supplies.

The reason for the extreme increase is mainly the sea sports available in the area and the remarkably good weather.

Tjøme has been nicknamed Sommerøya (English: the summer island) because so many tourists, particularly from the Oslo area, visit the municipality.

[16] The municipal council (Kommunestyre) of Tjøme is made up of representatives that are elected to four year terms.