The villages of Nikulchino and Volkovo are considered the beginning of the Christian history of the Vyatka land, having emerged in the early 12th century as the first Orthodox settlements on the Vyatka River. The history of the Holy Trinity Church in Volkovo began with a miracle. According to legend, the church was planned to be built on high ground, but the icon of the Kazan Mother of God, brought for consecration, ended up three times at the site of an ancient cemetery in the lowland. Understanding this as a sign, the residents decided to build the church there. The forest on the high ground, left after this story, is still called "Tserkovnik."

In 1772, Bishop Bartholomew Lyubarsky of Vyatka issued a decree for the construction of a stone church in the name of the Holy Trinity. Since then, the Volkovo church has inspired admiration. This can be read on the wall inscription made by a local resident, Pyotr Filippovich Khrulev. The church complex included a parish school and a house for clergy. After the revolution, the buildings were confiscated, and in 1939 the bells were thrown from the bell tower.

With the onset of the Great Patriotic War, the church was closed, and soldiers were placed in the Georgievsky chapel. An observation point for treating exhausted Leningraders operated in the clergy house. The church was reopened after the war, and on June 24, 1945, the first service was held on Trinity Sunday, gathering many people from nearby villages. Subsequently, there were attempts to close the church, but since the 1980s, services in Volkovo have been held regularly.

The church, located away from major roads but close to the regional center, became the beginning of a spiritual journey for many, including Archbishop Alexander Mogilev. In his youth, he was a regular parishioner of the Trinity Church, as visiting the Seraphim Church in Kirov was not allowed. On August 2, 1983, his ordination to the presbyterate took place in the Trinity Church.

Ancient relics have been preserved in the church: icons of the prophet Elijah, the great martyr George, and a large icon of the holy passion-bearers Boris and Gleb, transferred from the destroyed Nikulchino church. An annual procession with this icon takes place on May 15 from Volkovo to Nikulchino, where a new wooden church was built in 2001. The icon remains there until autumn, and on September 18, it returns to Volkovo. This tradition allows the holy icons to bless the two oldest settlements of the Vyatka land, located in the territory of the Slobodsky district.