Onnuri Community Church

Onnuri Community Church is a Presbyterian megachurch in Seoul, South Korea, founded in 1985 by Ha Yong-jo, who started with 12 families. After Ha's death in 2011, Jae-hoon Lee became senior pastor and still leads the church today. Onnuri operates multiple campuses across Seoul with congregations worshiping in ten languages, and it is known worldwide for its missions emphasis. It is one of the few churches outside the United States to appear in this index.

Onnuri's digital footprint is concentrated almost entirely on YouTube. The @onnuriservice channel holds 136,000 subscribers, which accounts for nearly 97 percent of the church's 140,300 combined followers. The channel grew 5.43 percent over the past year and published as recently as June 10, 2026. Facebook adds 4,300 followers. No Instagram or TikTok accounts are tracked, which holds the breadth score to 65, the lowest in this stretch of rankings.

Onnuri is a one-platform powerhouse. A 136,000-subscriber channel that uploads constantly is a serious asset, and the 5.43 percent growth rate is respectable for a base that size. But the concentration is the risk. With a velocity score of 43 and only two active platforms, Onnuri's index position depends almost entirely on YouTube's algorithm treating Korean-language sermon content well. A real Instagram presence would change this church's ranking quickly.