Trimstein is a former municipality in the Bern-Mittelland administrative district in the canton of Bern in Switzerland.

Of the rest of the land, 0.23 km2 (0.089 sq mi) or 6.3% is settled (buildings or roads).

The village of Trimstein merged on 1 January 2013 into the municipality of Münsingen.

On the following day, 1 January 2010, it joined the newly created Verwaltungskreis Bern-Mittelland.

[1] The blazon of the village coat of arms is Gules three Roses Or barbed Vert and seeded of the first.

In the federal election, a total of 253 votes were cast, and the voter turnout was 65.5%.

[2] There were 270 residents of the village who were employed in some capacity, of which females made up 45.6% of the workforce.

In the tertiary sector; 2 or 12.5% were in wholesale or retail sales or the repair of motor vehicles, 2 or 12.5% were in a hotel or restaurant, 1 was in the information industry, 2 or 12.5% were technical professionals or scientists, 5 or 31.3% were in education.

[2] From the 2000 census[update], 401 or 83.2% belonged to the Swiss Reformed Church, while 27 or 5.6% were Roman Catholic.

This is followed by three years of obligatory lower Secondary school where the students are separated according to ability and aptitude.

Following the lower Secondary students may attend additional schooling or they may enter an apprenticeship.

[15] During the 2011–12 school year, there were a total of 43 students attending classes in Trimstein.

Of the primary students, 8.7% were permanent or temporary residents of Switzerland (not citizens).