Big O Tires vs Costco:Which is more popular?
In September 2026, Costco had more branded searches than Big O Tires among tire retailers in the United States. Costco had about 569,000 branded searches, while Big O Tires had 450,000. Costco made up 8.9% of all tire retailer searches we track, and Big O Tires accounted for 7%. When we asked ChatGPT and Google AI Overviews about tire retailers, Costco appeared in all three answers and Big O Tires in one. Costco was mentioned before Big O Tires in every answer.
Who do people search for more?
Costco, about 26% more searches than Big O Tires
Who does AI mention more?
Costco, mentioned in every answer we collected
Who does AI recommend more?
Costco, named ahead of Big O Tires in every answer
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Top tire retailers in ChatGPT and Google AI Overviews
In three ChatGPT questions, Costco appeared in all three answers. Big O Tires was mentioned in one out of three: in one of the three ChatGPT answers. Costco was listed before Big O Tires in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Discount Tire1st- Costco2nd
Tire Rack3rd
Les Schwab4th
Big O Tires5th
Belle Tire–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Discount Tire3 of 3Named in 3 of 3 ChatGPT answers
- Tire Rack3 of 3Named in 3 of 3 ChatGPT answers
- Costco3 of 3Named in 3 of 3 ChatGPT answers
- Les Schwab2 of 3Named in 2 of 3 ChatGPT answers
- Big O Tires1 of 3Named in 1 of 3 ChatGPT answers
- Belle Tire0 of 3Named in 0 of 3 ChatGPT answers
See every answer about tire retailers
3 answers
Asked ChatGPT
“Which tire retailer should I shop at in the US?”
Asked ChatGPT
“What are the best tire retailers in the US?”
Asked ChatGPT
“What's the best tire retailer in the US for new tires?”
Searched Google, AI Overview
“tire shop”
Google showed no AI Overview for this search.
Searched Google, AI Overview
“cheap tires”
Google showed no AI Overview for this search.
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in United States on October 19, 2026.
Is Big O Tires or Costco more popular in search?
This chart shows how often people search Google for Big O Tires and Costco by name. Each line represents a brand's share of searches for all six tire retailers we track, month by month, from searches in United States.
Share of searches by month for Costco, Big O Tires. The figures are in the table below the chart.
View monthly share of searches table
| Month | Discount Tire | Tire Rack | Costco | Big O Tires | Belle Tire | Les Schwab |
|---|---|---|---|---|---|---|
| Oct 2025 | 59.3% | 11.9% | 10.1% | 8% | 5.3% | 5.3% |
| Nov 2025 | 63.4% | 10.4% | 8.8% | 7% | 5.7% | 4.7% |
| Dec 2025 | 62.7% | 10.3% | 8.7% | 6.9% | 5.6% | 5.6% |
| Jan 2026 | 64.4% | 10.6% | 8.4% | 7.1% | 4.7% | 4.7% |
| Feb 2026 | 61.3% | 15% | 8% | 6.7% | 4.5% | 4.5% |
| Mar 2026 | 63.6% | 12.8% | 7.2% | 7% | 4.7% | 4.7% |
| Apr 2026 | 60.5% | 12.1% | 8.4% | 8.1% | 5.4% | 5.4% |
| May 2026 | 65.1% | 10.7% | 7.4% | 7.2% | 4.8% | 4.8% |
| Jun 2026 | 66.4% | 8.9% | 7.6% | 7.3% | 4.9% | 4.9% |
| Jul 2026 | 66.4% | 8.9% | 7.6% | 7.3% | 4.9% | 4.9% |
| Aug 2026 | 64.1% | 10.5% | 8.9% | 7% | 4.7% | 4.7% |
| Sep 2026 | 64.1% | 10.5% | 8.9% | 7% | 4.7% | 4.7% |
How has the Big O Tires and Costco comparison changed over the last 12 months?
3 findings
- Costco was ahead of Big O Tires in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Big O Tires’ share of searches among tire retailers in the United States moved from 8% to 7%, and its estimated monthly branded searches moved from 550K to 450K.
- Across the 12 months ending September 2026, Costco’s share of searches among tire retailers in the United States moved from 10.1% to 8.9%, and its estimated monthly branded searches moved from 696K to 569K.
How did search popularity change for United States tire retailers in September 2026?
2 changes
Estimated monthly branded searches for Costco in the United States fell 18.2% over 12 measured months, from 696K to 569K in September 2026.
Estimated monthly branded searches for Big O Tires in the United States fell 18.2% over 12 measured months, from 550K to 450K in September 2026.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using Big O Tires’ and Costco’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.
Big O Tires
1 branded search term
- big o tires
Costco
2 branded search terms
- costco tire center
- costco tires
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