Duplicate Content on Location Pages
Duplicate content on location pages arises when a company with several branches creates a separate page for each location but copies text blocks, service descriptions or meta data unchanged. Google describes no penalty for this, but automatic canonicalisation: from a group of very similar pages the search engine picks one as the canonical version and usually shows only that one in the results. If you state no preference of your own, you leave it to Google to decide which location page becomes visible. Google also names concrete drawbacks: crawl budget wasted on duplicates, ranking signals that are harder to consolidate, and messier metrics.
In practice
Franchise and multi-branch businesses that generate location pages from a template are most affected. The remedy is individual content per location: local contacts, site-specific services, real customer quotes, your own photographs and distinct title tags instead of plain name-and-town combinations. Canonical tags are rarely the answer here, because each location page is meant to rank on its own and must not point somewhere else; consistent internal linking and clearly distinguishable URLs help instead. Where genuine differentiation is not possible, a single overview page with the contact details of all branches is often more useful than ten near-identical subpages.