Google's local algorithm varies from its organic algorithm, so it's important to take into a few specific factors when promoting local businesses. First of all, the local algorithm takes into account the consumers proximity to the business, and the location zip code can typically be found at the bottom of the search results. Second, Google takes into account the prominence of each local business, like the number of physical store visits and reviews. Lastly, the local algorithm uses online relevance to filter results so the more online presence, the better.

Key Takeaways:

• Google's local algorithm takes into account where you are currently living, and you can even see it on the bottom of the search page.
• The local algorithm also takes into account how important you are. For example, how many reviews or walk-ins you get.
• Finally, the local algorithm takes into account your relevance, or in other terms, the popularity of your online presence.

“Proximity is basically defined as your location when you are searching on your phone or your computer and you type something in.”

Read more: https://moz.com/blog/how-does-the-local-algorithm-work