An estimated 1.77 billion internet users use ad blocking across desktop and mobile. 29.5% of internet users worldwide use ad-blocking tools. 32.5% of American internet users block ads. Indonesia has the highest national ad-blocker penetration rate (40.1%)
According to GWI, as of Q2 2025 Indonesia led the world in percentage of internet users aged 16-64 using ad blockers (40.1%). However, as I noted in a short post on this article (https://social.emucafe.org/naferrell/high-ad-block-usage-in-indonesia-04-05-26/), the various surveys it cites to have very different ad block usage numbers.