Cornerstone Chapel

Cornerstone Chapel is a non-denominational church in Leesburg, Virginia, in the Washington, DC exurbs. It was founded in 1991 by 18 charter members who called Gary Hamrick as its first senior pastor, a role he still holds. Affiliated with the Calvary Chapel Association since 1994, the church is built on verse-by-verse expository teaching and grew from a middle school cafeteria to a 32-acre permanent campus completed in 2016, with thousands attending weekly. Hamrick's teaching also airs on hundreds of radio stations through the Cornerstone Connection broadcast.

Cornerstone reaches 661,979 followers across three platforms, and YouTube does most of the work. The @cornerstonechpl channel holds 578,000 subscribers, up 21.17 percent in the past year, with uploads as recent as June 8, 2026. Facebook adds 53,284 followers and a verified Instagram account adds 30,695. There is no TikTok presence. Roughly 87 percent of Cornerstone's total audience lives on YouTube.

Cornerstone is proof that a single-campus church with no celebrity machinery can build a national teaching audience. The 578,000-subscriber channel dwarfs what its Facebook and Instagram numbers would predict, which means people find Hamrick through search and recommendations, not through social funnels. The velocity score of 74.9 reflects steady compounding: 21 percent annual growth on a channel that size adds six figures of subscribers without a single stunt. Reach sits at 51.9 and breadth at 82.5. The pattern matches Calvary Chapel Chino Hills two spots up the list, and together they make the case that long-form expository teaching is one of the most durable growth engines in church media right now.