We first published this page in 2022. Rather than swap the figures and change the date, it is more useful to show what moved, because one platform went from a footnote to the largest claimed adult reach in the country in under four years.
A warning before the numbers, because it matters more than any single figure below: most of these come from platforms' own advertising tools, and they do not reconcile with each other. There is a section on that further down. Read it before you plan a budget.
The headline change since 2022: TikTok
In the 2022 version of this article, TikTok warranted a single short section. As of late 2025:
| Platform | South African reach | As share of population |
|---|---|---|
| TikTok | 29.1m (adults 18+) | 64.8% of adults 18+ |
| 27.9m | ||
| YouTube | 26.9m | 41.4% |
| 17.0m members | 26.2% | |
| 8.60m | 13.2% |
All figures from DataReportal's Digital 2026 South Africa report (Kepios, October 2025).
TikTok is not "coming". On the platforms' own numbers it has already arrived, and for adult reach it now claims more of South Africa than Facebook does.
And it holds attention longer than anything else
Reach is one thing. Time is another, and here TikTok leads more clearly. Figures presented by The Media Shop and reported in May 2026 put daily South African time per platform at:
| Platform | Daily time | Times opened per day |
|---|---|---|
| TikTok | 1h 40m | 9.6 |
| 1h 22m | 28 | |
| YouTube | 1h 20m | |
| 54m | ||
| 54m |
Two different behaviours sit in that table, and they call for different things from a brand.
TikTok is where attention pools. Long sessions, fewer of them. People arrive to be entertained and will give a video a genuine chance.
WhatsApp is where habit lives. Twenty-eight opens a day, more than any platform, in short bursts. Nobody is browsing WhatsApp for brands, which is exactly why it works as a service and conversation channel rather than a broadcast one.
Overall usage
South Africa had 29.1 million active social media user identities in October 2025, equal to 44.9% of the total population, per DataReportal. Among adults aged 18 and over, that same 29.1 million represents 64.8% of the adult population.
South Africans are also among the heaviest internet users on earth. Meltwater's South African report puts daily time online at 9 hours 37 minutes, with 3 hours 36 minutes of that on social media.
Now the part most articles skip: these numbers do not add up
Here is a problem you should see for yourself.
South Africa's total social media user base is reported as 29.1 million. TikTok's claimed adult reach is also 29.1 million. Read literally, that says every single social media user in South Africa, including everyone under 18 counted in the total, is a TikTok-reachable adult.
That cannot be true. It is an artefact of how these figures are produced.
They are advertising reach, not verified people. Platforms report how many accounts their ad tools estimate they can reach. That includes duplicate accounts, dormant accounts, business accounts and, in some cases, accounts that are not people at all. DataReportal states these caveats plainly, and is more careful about it than most of the sites that quote it.
The age bases differ. TikTok reports adults 18 and over. Facebook's figure is not restricted the same way. Comparing them directly, as the table above invites you to do, is not apples to apples. We have shown it because it is the comparison everyone makes, and labelled it because most articles do not.
Independent sources disagree, badly. DataReportal puts TikTok's South African adult reach at 29.1 million. Growth Pulse Media puts it at roughly 14 million. That is a twofold gap on the same market in the same year. Meltwater put total South African social media users at 26.7 million for 2025, against DataReportal's 29.1 million.
None of these outlets is being dishonest. They are measuring different things and rarely saying so.
What to do with that. Use these figures for direction, never for arithmetic. "TikTok is now a serious channel in South Africa" is well supported. "TikTok will reach 29.1 million South Africans for me" is not a claim any of this data can carry, and if an agency puts it in a proposal, ask which source and which age base.
What this means if you are marketing in South Africa
Reconsider TikTok if you dismissed it in 2022. The case then was that it skewed too young and too casual for most businesses. On reach and attention that argument no longer holds. Whether it suits your specific customer is a separate question, but it now deserves an answer rather than a reflex.
Treat WhatsApp as infrastructure, not a channel. Twenty-eight opens a day makes it the most habitual app in the country. It is not a place to advertise. It is where enquiries, quotes, confirmations and support actually happen, and a business that answers there well has an advantage over one that routes everything through a contact form.
LinkedIn is larger here than most people assume. 17.0 million members, 26.2% of the population. For B2B in South Africa that is real, and it is under-exploited relative to how crowded Facebook is.
Instagram is the smallest of the majors at 8.60 million. It is not the mass-reach platform many South African businesses assume it to be. It is a good fit for visual and younger urban audiences, and a poor default for everyone else.
Facebook is still the largest paid acquisition platform, whatever TikTok's reach figures say, because it has the deepest targeting and the most mature advertising tools. See our article on what Facebook ads actually cost in South Africa.
Sources. Platform reach and population figures from DataReportal Digital 2026: South Africa (Kepios, October 2025). South African time-per-platform figures presented by The Media Shop, reported May 2026. Daily online time from Meltwater. Conflicting TikTok estimate from Growth Pulse Media. All platform figures represent advertising reach rather than verified individuals, and were current at the time of writing.
First published September 2022. Rewritten August 2026.