The official blazon is "Azure, six plates, one over two over three" (Norwegian: På blå grunn seks sølv myntar, 1-2-3).

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

The six circles are set in a triangle to symbolize a cairn, representing the fact that the island was historically used as a sea mark for sailors.

The island municipality of Bokn is located on the northern side of the Boknafjorden, at the southern end of the Karmsundet strait.

The hills are largely covered with heather, but bushes and trees are increasingly competing, especially birch.

The highest point is the 297-metre (974 ft) high Boknafjellet, a small mountain on Vestre Bokn island.

The municipal council (Kommunestyre) of Bokn is made up of 17 representatives that are elected to four year terms.

Apart from a factory producing various tanks made of glassfiber-reinforced plastic (Bokn Plast), there is no industry on the islands other than some fish farming.

People have traditionally lived off fishing and farming, but more recently, some work has been in the North Sea petroleum industry.