South Korea's digital advertising market continues to expand rapidly, with total digital ad spend reaching approximately $8.5 billion in 2026. Mobile advertising dominates, accounting for over 73% of digital ad expenditure, driven by high smartphone penetration and mobile-first consumer behaviors. Social media platforms remain the primary channels for advertisers, reflecting users' engagement and content consumption patterns.
The shift towards digital channels has significantly impacted traditional advertising budgets, with digital now comprising about 65% of total ad spend. The average CPC has increased modestly, indicating a competitive and mature digital ad environment. Businesses increasingly leverage targeted advertising and data analytics to optimize campaigns, fueling further market growth and innovation in South Korea's digital economy.