--- title: "Big O Tires vs Costco: Which is searched more in the United States?" description: "Is Big O Tires or Costco more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Tire retailers set in the United States. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/us/compare/big-o-tires-vs-costco" publisher: "Brandwave" --- # Big O Tires vs Costco: Which is searched more in the United States? Is Big O Tires or Costco more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Tire retailers set in the United States. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Big O Tires and Costco - **Competitive set**: Tire retailers - **Market**: United States - **Month measured**: Sep 2026 - **Big O Tires Share of Search**: 7% - **Costco Share of Search**: 8.9% ## Is Big O Tires or Costco more popular in search? - 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%. - 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. ## 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. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | All answers that named it | | --- | --- | --- | --- | | Discount Tire | 1st | 3 of 3 | 3 of 3 | | Costco | 2nd | 3 of 3 | 3 of 3 | | Tire Rack | 3rd | 3 of 3 | 3 of 3 | | Les Schwab | 4th | 2 of 3 | 2 of 3 | | Big O Tires | 5th | 1 of 3 | 1 of 3 | | Belle Tire | Not ranked | 0 of 3 | 0 of 3 | ## Every AI answer about tire retailers - Asked ChatGPT "Which tire retailer should I shop at in the US?": 1. Discount Tire, 2. Costco, 3. Tire Rack - Asked ChatGPT "What are the best tire retailers in the US?": 1. Discount Tire, 2. Costco, 3. Tire Rack, 4. Les Schwab, 5. Big O Tires - Asked ChatGPT "What's the best tire retailer in the US for new tires?": 1. Discount Tire, 2. Costco, 3. Tire Rack, 4. Les Schwab Not named in any answer: Belle Tire. Brands are listed in the order each answer named them. The answers were collected in United States on October 19, 2026. ## How did search popularity change for United States tire retailers in September 2026? - 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. ## Month by month | Month | Big O Tires estimated searches | Big O Tires Share of Search | Big O Tires rank | Costco estimated searches | Costco Share of Search | Costco rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 550K | 8% | 4 | 696K | 10.1% | 3 | | Nov 2025 | 550K | 7% | 4 | 696K | 8.8% | 3 | | Dec 2025 | 450K | 6.9% | 4 | 569K | 8.7% | 3 | | Jan 2026 | 450K | 7.1% | 4 | 533K | 8.4% | 3 | | Feb 2026 | 368K | 6.7% | 4 | 436K | 8% | 3 | | Mar 2026 | 450K | 7% | 4 | 466K | 7.2% | 3 | | Apr 2026 | 450K | 8.1% | 4 | 466K | 8.4% | 3 | | May 2026 | 450K | 7.2% | 4 | 466K | 7.4% | 3 | | Jun 2026 | 450K | 7.3% | 4 | 466K | 7.6% | 3 | | Jul 2026 | 450K | 7.3% | 4 | 466K | 7.6% | 3 | | Aug 2026 | 450K | 7% | 4 | 569K | 8.9% | 3 | | Sep 2026 | 450K | 7% | 4 | 569K | 8.9% | 3 | ## How each brand is measured 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**: Measured on the search term “big o tires”. - **Costco**: Measured on the search terms “costco tire center” and “costco tires”, summed into one figure. - [Big O Tires profile](/demand/us/brands/big-o-tires) - [Costco profile](/demand/us/brands/costco) - [All tire retailers in the United States](/demand/us/categories/us-tire-retailers): The set both shares are measured inside, 6 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Big O Tires or Costco more popular in search? 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%. ## Cite this page Brandwave. "Big O Tires vs Costco: Which is searched more in the United States?". https://gobrandwave.com/demand/us/compare/big-o-tires-vs-costco This page is also available as HTML at https://gobrandwave.com/demand/us/compare/big-o-tires-vs-costco. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.