When people in the Valley say “everyone in the U.S. is on WhatsApp,” I always go back to the numbers. The truth is more interesting than the hype, and it actually makes WhatsApp look stronger in the segments that matter.
Start with Pew. In 2021, about 23% of U.S. adults said they used WhatsApp, according to Pew’s social media benchmarking work, which is summarized in various fact sheets and platform guides. (UNLV) By March 2024, a separate Pew comparison put the U.S. at roughly 29% adult adoption. (Pew Research Center) The latest “Americans’ Social Media Use 2025” report pegs WhatsApp at 32% of U.S. adults, explicitly noting that usage is “up from 23% in 2021.” You can see that in the main report and appendix here: Americans Social Media Use 2025 and the appendix tables. (Pew Research Center)
Translate the percentages into people and the picture sharpens. World Population Review and related aggregators put U.S. WhatsApp mobile users at 79.6 million in 2021 and 98 million in 2024. (World Population Review) In July 2024, Mark Zuckerberg went further and said WhatsApp had hit 100 million monthly active users in the U.S., a milestone reported by outlets like The Verge: WhatsApp now has 100 million monthly users in the US. (The Verge) This is not global padding. These are U.S. accounts.
The demographic skew is classic American segmentation. Pew’s 2024 social media report shows WhatsApp adoption at 54% of Hispanic adults and 51% of Asian adults, compared with 31% of Black adults and 20% of White adults. See: Americans Social Media Use 2024. (Pew Research Center) In other words, if you are talking to Hispanic or Asian communities in the U.S., WhatsApp is already a first class channel, not an experimental add on.
Teens are catching up. Pew’s “Teens, Social Media and Technology 2024” report shows 23% of U.S. teens using WhatsApp, up 6 percentage points from 2022. You can see that in their summary here: Teens, Social Media and Technology 2024. (Pew Research Center) It is nowhere near YouTube or TikTok, but the direction is firmly up.
So the honest story is this: WhatsApp in the U.S. is not “everyone,” but it is now one third of adults and a rising share of teens, with particular strength among Hispanic and Asian Americans, urban markets, and cross border families. Add the 100 million MAU marker, and if you are still building a U.S. communications or CRM strategy around SMS only, you are playing last decade’s game.
The Andy Analysis: Pew’s own data shows U.S. WhatsApp adoption rising from about 23% of adults in 2021 to 32% in 2025, with usage exceeding 50% among Hispanic and Asian adults and 23% of teens. Independent counts put U.S. users around 100 million monthly accounts, making WhatsApp a serious, segmented U.S. channel, not a niche tool.