Harstad Church serves as a common site for several congregations affiliated with the Church of Norway. The church emphasizes community and inclusion in the local community, and offers a variety of activities such as Family Tuesday and Youth Friday. These events are designed to engage both children, youth and adults, and create an active and inclusive environment.
In addition to the regular activities, Harstad Church offers drop-in weddings, which give couples the opportunity to have simple and accessible church weddings. The church is also hosting the Trondenesdagene in 2025, an event that will bring the local community together. Services with communion are offered regularly, and information about new cemetery statutes is available for those who want up-to-date information about cemeteries.