Consecrated in May 1853, St. Mark's Episcopal Church is one of the oldest churches in the Somerset Hills area. The church itself has several different rooms for its many music and youth programs and features a sanctuary lined with stained glass windows. The windows were designed by the first rector of the parish, Norman M. Post in 1968, and were donated to the church by families of the parish in memory of loved ones. The church offers a brochure so that members can take self-guided walking tours of the windows.

The Rector, Reverend Richard C. Morley, has a blog on which church members can comment. The church also posts audio clips of past sermons and produces a sermon podcast that members can download on iTunes.