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If you run a local business — a restaurant, auto repair shop, clinic, salon, or any business with a physical address — local SEO determines how many customers find you. And Google reviews are among the important factors that influence local SEO.
How Google Decides Who to Show
When someone searches for "hair salon Birmingham" or "auto repair near me," Google evaluates three factors:
1. Relevance
How well your Google Business profile matches the search query. The right category, keywords in your description, and complete information all increase relevance.
2. Distance
How far your business is from the person searching. You have no direct control over this factor — your address is simply where it is.
3. Prominence
How well-known your business is. Google says in its help pages that prominence is based on information it has about the business from across the web, including links and articles, and also on the number of reviews and ratings (Google).
What counts towards prominence according to Google:
- Number of Google reviews and ratings
- Mentions and links on other websites
Of these factors, reviews are the ones you can influence most easily through your own work. Want to see how this plays out in practice for specific industries? Check out our guide to Google reviews for restaurants.
What Google Evaluates in Reviews
Google does not publish its exact algorithm. Below we separate what Google itself says from what are only reasonable assumptions.
Number of Reviews
Google says that “More reviews and positive ratings can help your business’s local ranking.” (Google). It does not say how big a difference a specific number makes.
Average Rating
Google talks about positive ratings but names no ideal number. For customers, a perfect 5.0 from a few reviews is less convincing than 4.6 from a hundred. You must not ask customers for a specific number of stars; Google’s policy prohibits influencing ratings.
Recency of Reviews
Google does not publish how much the age of a review weighs in the algorithm. But customers can sort reviews by newest, and a profile with nothing new for half a year looks abandoned to them.
Keywords in Reviews
Customers often mention specific things in reviews (“excellent pizza”, “professional AC repair”). Google does not confirm that it uses them as a relevance signal, so treat it as an assumption. You must not dictate to customers what to write anyway.
Responses to Reviews
About replies, Google writes that they show customers you value their feedback (Google). It does not claim that replies directly improve ranking. They do help the trust of people who read your profile.
The Local Pack — Why It Matters
When Google displays local results, the Local Pack — a trio of businesses with a map — is often prominent on the page. A person can call or start navigation straight from it. Google ranks local results by relevance, distance and prominence and says itself that the more reviews and positive ratings a business has, the better its placement can be (Google).
A Practical Experiment
Search Google for your industry + city (e.g., "accountant New York"). Look at the top 3 results in the Local Pack and compare them to your profile:
| Metric | Top 3 Average | Your Business |
|---|---|---|
| Number of reviews | ? | ? |
| Average rating | ? | ? |
| Most recent review | ? | ? |
| Review responses | ? | ? |
If you're falling behind on any metric, you know where to start.
Strategies for Improving Local Rankings Through Reviews
1. Consistent Review Collection
The goal isn't a one-time spike, but a steady stream. A few reviews every week throughout the year looks more natural than a hundred in one month followed by silence.
2. Respond to Every Review
Positive and negative alike. Ideally within 24 hours. Personalized responses, not copy-paste templates.
3. Optimize Your Google Business Profile
- Complete information (address, phone, website, opening hours)
- Correct category and subcategories
- Quality photos
- Regular posts (Google Posts)
4. Automate with Reputive
Reputive sends a review request to the customers you add (an SMS and up to three emails in a sequence), and AI prepares reply drafts that you approve before they are published. How many reviews you get depends on the number of customers; nothing can be guaranteed.
Correlation vs. Causation
An important note: Google doesn't publish its exact algorithm. Only what it writes in its help pages is certain. The rest comes from surveys and correlation studies by SEO specialists (Moz Local Search Ranking Factors, Whitespark), which rank reviews among the important factors. But these are estimates, not data from Google.
Key Metrics to Track
- Number of new reviews per month — rising, flat, or declining?
- Average rating — trend over the past 6 months
- Local Pack position — for your main keywords
- Clicks from Google Business Profile — calls, navigation, website visits
- Response time on reviews — average time to respond
Collect reviews regularly and without manual work. Try Reputive free — automated review collection and AI responses. 14 days, no commitment.
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