Coles vs IGA:Which is more popular?
In September 2026, Coles had more branded searches than IGA among supermarkets in Australia. Coles had about 3 million branded searches, while IGA had 506,000. Coles made up 33.2% of all supermarket searches we track, and IGA accounted for 5.6%. When we asked ChatGPT and Google AI Overviews about supermarkets, Coles appeared in all four answers and IGA in three. Coles was mentioned before IGA in every answer.
Who do people search for more?
Coles, about 6 searches for every 1 for IGA
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Top supermarkets in ChatGPT and Google AI Overviews
In three ChatGPT questions and one Google AI Overview, Coles appeared in all four answers. IGA was mentioned in three out of four: in all three ChatGPT answers, but not in the Google AI Overview. Coles was listed before IGA in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Woolworths1st- Coles2nd
Aldi3rd
Harris Farm Markets4th
IGA5th
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Coles4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
- Woolworths4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
- Aldi3 of 4Named in 3 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- IGA3 of 4Named in 3 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- Harris Farm Markets3 of 4Named in 2 of 3 ChatGPT answersNamed in 1 of 1 Google answers
See every answer about supermarkets
4 answers
Asked ChatGPT
“Which supermarket is cheapest in Australia?”
Asked ChatGPT
“What are the best supermarkets in Australia?”
Asked ChatGPT
“What's the best supermarket in Australia for online grocery delivery?”
Searched Google, AI Overview
“supermarket”
Google showed no AI Overview for this search.
Searched Google, AI Overview
“grocery delivery”
Brands are shown in the order each answer named them. The survey took place in Australia on October 22, 2026.
Is Coles or IGA more popular in search?
This chart shows how often people search Google for Coles and IGA by name. Each line represents a brand's share of searches for all five supermarkets we track, month by month, from searches in Australia.
Share of searches by month for Coles, IGA. The figures are in the table below the chart.
View monthly share of searches table
| Month | Coles | Woolworths | Aldi | IGA | Harris Farm Markets |
|---|---|---|---|---|---|
| Oct 2025 | 35.1% | 34.6% | 23.5% | 5.7% | 1.2% |
| Nov 2025 | 35.1% | 34.5% | 23.4% | 5.7% | 1.3% |
| Dec 2025 | 34.8% | 34.4% | 23% | 6.4% | 1.3% |
| Jan 2026 | 32.6% | 38.3% | 21.8% | 6.2% | 1.2% |
| Feb 2026 | 35.2% | 34.7% | 23.5% | 5.5% | 1.1% |
| Mar 2026 | 32.8% | 38.9% | 21.9% | 5.3% | 1.1% |
| Apr 2026 | 34.6% | 34.2% | 23.5% | 6.3% | 1.5% |
| May 2026 | 31% | 37.3% | 25.3% | 5% | 1.3% |
| Jun 2026 | 33.3% | 33.3% | 27.2% | 4.9% | 1.2% |
| Jul 2026 | 33.3% | 32.8% | 27.7% | 4.9% | 1.3% |
| Aug 2026 | 31% | 36.9% | 25.4% | 5.3% | 1.4% |
| Sep 2026 | 33.2% | 32.7% | 27.2% | 5.6% | 1.2% |
How has the Coles and IGA comparison changed over the last 12 months?
3 findings
- Coles was ahead of IGA in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Coles’ share of searches among supermarkets in Australia moved from 35.1% to 33.2%, and its estimated monthly branded searches moved from 3.7M to 3M.
- Across the 12 months ending September 2026, IGA’s share of searches among supermarkets in Australia moved from 5.7% to 5.6%, and its estimated monthly branded searches moved from 590K to 506K.
How did search popularity change for Australia supermarkets in September 2026?
2 changes
In September 2026, Coles overtook Woolworths to become the leader among supermarkets in Australia, with 33.2% of the searches.
Estimated monthly branded searches for IGA in Australia fell 14.3% over 12 measured months, from 590K to 506K in September 2026.
How are branded searches counted?
5 search terms
Brandwave collects information about searches that people make online using Coles’ and IGA’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
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