The scene of the crime for the World War II-era Feldmann case is at Skrikerudtjernet in Trøgstad.

The municipality (originally the parish) is named after the old Trøgstad farm (Old Norse: Þrygsstaðir and/or Þrjúgsstaðir), since the first church was built here.

The arms show an anvil and was chosen because Trøgstad historically was well known for the quality of its blacksmiths who made iron tools and objects.

The green background of the shield symbolizes the fields and forests in the municipality.

The church is of Romanesque architecture and has a rectangular nave with a lower and narrower choir.