The celebration of Mass in Custer likely began around 1877, marking the humble beginnings of what would become a vibrant faith community. Shortly after, the Church of the Sacred Heart was established, enduring fires, relocations, and growth before the present church building was dedicated on December 14, 1958, under the new patronage of St. John the Baptist (SJB). Over the years, our parish formed meaningful connections with neighboring communities, becoming pastorally associated with St. Rose of Lima in Hill City in 1994 and later expanding to include St. Anthony of Padua in Hot Springs and St. James in Edgemont, creating the “Black Hills Catholic Ministries.”

Through every transition, one constant has remained: each member plays a vital role in our parish family. We invite you to join us in shaping the future of our faith community by participating in our Parish Councils, Committees, organizations, and activities, continuing the legacy of faith and service that has brought us to this moment. Together, we grow stronger as one body in Christ.