On 1 January 1877, the Tiltereidet and Meisalstranden part of Tingvoll (population: 212) on the west side of the Sunndalsfjorden was transferred to Nesset Municipality.

On 1 January 1880, the Torjulvågen area of Halsa Municipality (population: 240) was transferred to Tingvoll.

On 1 January 1890, the Rausand area of Tingvoll (population: 101) was transferred to Nesset Municipality.

On 1 January 1965, the part of Tingvoll located on the western side of the Tingvollfjorden (population: 778) was transferred to Gjemnes Municipality and the Åsprong-Sandnes area near Meisingset (population: 26) was transferred from Stangvik Municipality to Tingvoll.

On 3 November 1917, a royal resolution changed the spelling of the name of the municipality to Tingvoll.

The official blazon is "Argent, five oak leaves vert in annulo stems to centre" (Norwegian: I sølv fem grønne eikeblad i rosett).

The charge is a group of five oak leaves arranged in a circle with their stems pointing to the centre.

Each leaf represents one of the five main villages in the municipality: Tingvollvågen, Straumsnes, Gyl, Torjulvågen, and Meisingset.

The municipal council (Kommunestyre) of Tingvoll is made up of 21 representatives that are elected to four year terms.

The Bergsøysund Bridge (part of the European route E39 highway) connects Aspøya to the neighboring island of Bergsøya to the west.

In Tingvoll, the work started with a program for environmental education of the members of the council and the executive officers.

A main part of the early years of eco-municipality, was the program for composting waste from the households.

A new type of insulated bin was developed (Hagakompen) to assure composting could handle meat and fish waste, and work well in wintertime as well.