Short answer: Reliable, Australia-specific digital marketing data is harder to find than most "statistics" roundups suggest, and a lot of the numbers circulating online (a single national average cost-per-click, one universal conversion rate, one email ROI figure) don't hold up once you check the source. This guide sticks to what's actually published by named bodies such as DataReportal, the ACMA and Australia Post, and shows you how to build the benchmarks that actually matter — your own.
Most "digital marketing statistics" articles either recycle US data that has nothing to do with Australian search behaviour and CPCs, or state precise figures — "$3.42 average CPC," "2.3% conversion rate" — with no traceable source at all. Once you try to verify them, they lead nowhere. Below is what's genuinely published and sourced, alongside guidance on measuring the figures that no public report can give you: your own account performance.
How Many Australians Are Actually Online
This is one of the few areas with solid, regularly updated public data. According to DataReportal's Digital 2026 Australia report, the vast majority of the population uses the internet, and a large majority are active social media users, figures that are updated annually and are worth checking directly rather than via a secondary source, since the exact percentage shifts slightly each release (DataReportal, Digital 2026: Australia).
The Australian Communications and Media Authority separately tracks internet access among adults through its own household research, and its most recent release found internet access among Australian adults is now almost universal (ACMA, February 2026). What that report is genuinely useful for is the trend it documents: mobile is doing more of the work each year while landline-based access keeps declining, which has practical implications for how you design forms, checkouts and click-to-call buttons.
What We Won't Publish (and Why)
A single national average cost-per-click, a blanket "average conversion rate," and a universal email marketing ROI figure are the three most commonly repeated statistics in Australian marketing content, and none of them have a credible, checkable public source behind the specific numbers usually quoted. Google doesn't publish an official average CPC across the Australian market, because CPCs vary enormously by industry, keyword competitiveness, location and even time of year. Treat any article stating one flat figure with scepticism, and ask what report it's actually citing.
The same applies to email ROI and website conversion rate claims that get repeated without attribution across hundreds of sites. Rather than repeating an unverifiable number, the sections below explain what actually drives each of these metrics and how to establish your own baseline, which will be more useful to your business than any industry-wide average could be.
Search Behaviour: What's Actually Documented
Search engines remain the dominant way Australians discover new businesses, a point confirmed by both DataReportal's internet-use data and ACMA's ongoing communications research. Beyond that broad statement, exact figures such as "X% of clicks go to the first five results" vary by study methodology, device mix and industry, and change as search results pages themselves change shape with AI-generated summaries and expanded local packs.
Rather than anchoring to a number that may already be out of date by the time you read it, the more useful exercise for your business is pulling your own Google Search Console data: what share of your impressions convert to clicks, which queries you already rank for, and where you sit on page one versus page two for the keywords that matter to your revenue. That's a baseline no industry report can hand you.
Google Ads and Paid Search: Measuring Your Own Baseline
Cost-per-click, conversion rate and cost-per-lead in Google Ads depend heavily on your industry, your Quality Score, your landing page and your geographic targeting, which is exactly why Google doesn't publish a single Australian average and why you should be wary of any source that claims one. What's genuinely useful is Google's own guidance on how bidding and account structure affect performance, which explains the mechanics rather than promising a fixed number (Google Ads Help, About Smart Bidding).
- Pull your last 90 days of CPC, conversion rate and cost-per-conversion directly from your own account rather than comparing to an unsourced industry figure
- Compare your current quarter to the same quarter last year, since seasonality (particularly around EOFY and the pre-Christmas retail period) shifts costs more than most generic benchmarks acknowledge
- Segment performance by campaign type and match type before drawing any conclusion about whether your account is "expensive" or "cheap" for your category
Social Media: What's Verifiable
Platform-level user numbers for Australia (how many people use Facebook, Instagram, TikTok or LinkedIn) are tracked and published by DataReportal in its annual Digital Australia report, and those figures are the most defensible public source available if you need platform reach numbers for a proposal or board pack (DataReportal, Digital 2026: Australia). Ad costs on those platforms (CPM, CPC) are not published as fixed national averages by the platforms themselves, because they're set by auction and vary by audience, creative and objective in real time.
If you need a genuine cost benchmark for your own paid social activity, the only reliable method is to export your own account's CPM and CPC trend over the last two to three quarters and compare it against your own history, since that's the only dataset that reflects your actual audience and creative quality.
Email Marketing: Building a Real Baseline
Open rate, click-through rate and email-driven revenue are all metrics your own email marketing platform reports on directly, and they're far more useful measured against your own list history than against an unsourced industry-wide ROI multiple. Open rate accuracy has also become less reliable industry-wide since Apple's Mail Privacy Protection began pre-fetching images, which inflates open rate figures across the board regardless of platform or country, so click-through rate and, ultimately, revenue per send are more trustworthy numbers to track over time than open rate alone.
- Track your click-through rate and revenue-per-send month on month rather than chasing an open rate percentage that may already be distorted
- Compare segmented sends against broadcast sends within your own list to judge whether segmentation is worth the extra setup time
- Note your unsubscribe rate over time as an early warning signal for list fatigue, and treat a rising trend as more informative than any single benchmark figure
Website Conversion Rate: Why One Number Can't Represent Every Business
Conversion rate depends entirely on your industry, average order value or contract value, traffic quality and the length of your typical buying decision, which is precisely why a single "average Australian website conversion rate" figure isn't meaningful once you dig into how it was calculated or where it came from. A highly considered B2B service with a long sales cycle will naturally convert at a very different rate to an impulse-purchase retail product, and comparing the two against the same number tells you nothing useful about either.
The practical fix is to track your own conversion rate over a rolling 12-month window, segmented by traffic source, and treat any month-to-month dip in context of seasonality before assuming something is broken. If you want a structured approach to lifting that number rather than just measuring it, conversion rate optimisation is the discipline built specifically around testing and improving it.
Ecommerce: The Numbers That Are Actually Published
Ecommerce is one of the better-documented areas of Australian digital behaviour thanks to Australia Post's annual eCommerce Report, compiled from real delivery data rather than survey estimates. The 2026 edition reported that Australians spent a record amount shopping online in 2025, with millions of households buying online during the year, and it's genuinely worth reading the report directly rather than a recycled summary, since it breaks the national figure down by category and state (Australia Post, eCommerce Report 2026).
Cart abandonment rate and ecommerce conversion rate both vary enormously by product category, price point and checkout friction, and neither has a single credible Australia-wide average worth quoting. If you run an online store, your own analytics platform will show you exactly where shoppers are dropping off in your checkout, which is a far more actionable number than any national estimate.
How to Build Benchmarks That Actually Help Your Business
Public data is genuinely useful for population-level context — how many Australians are online, how big the ecommerce market is, how internet access is shifting toward mobile — but it can't tell you what a "good" number looks like for your specific business. Building your own benchmark takes three steps:
- Establish a clean baseline using at least 90 days of your own data for each channel you're evaluating, so a single unusual week doesn't distort the picture
- Segment before comparing — traffic source, device, campaign type and customer type all affect the numbers enough that a blended average hides more than it reveals
- Re-measure on a fixed schedule, such as quarterly, so you can see genuine trend movement rather than reacting to normal week-to-week noise
Once that baseline exists, it becomes the only benchmark that actually matters: is this channel improving relative to where it was, not relative to a number pulled from an unsourced list online.
Where to Go Next
- SEO services — build a search presence measured against your own baseline, not an unsourced average
- Google Ads management — get proper account-level reporting instead of guessing against a generic CPC figure
- What is a good ROAS? Benchmarks by industry
- SEO vs Google Ads: which is right for you?
