The Google 3-pack (Local Pack) is geographically constrained — Google primarily shows businesses with a verified physical presence in or near the searcher's location. The legitimate path to multi-city 3-pack visibility requires real physical presence in each city you want to rank in. For each city: secure a real address (own, lease, or rent — virtual offices and mail forwarding addresses are detected and penalized), verify a separate Google Business Profile, build city-specific content on your website (a substantive city landing page covering the local market), earn city-specific backlinks (local media, local business associations, .ca municipal sources), generate reviews from customers who themselves are based in the target city, and operate the location with genuine business activity (real staff, real hours, real photos). The shortcuts that do not work: virtual office addresses (detected, penalized); fake addresses at staff homes that are not actually used for business (detected, penalized); spinning up GBP listings with shared phone numbers (detected, penalized); using PO boxes or mailbox services (against guidelines). For service-area businesses (mobile services without a public storefront — e.g., contractors, mobile veterinarians, in-home service providers), Google does support service-area businesses with hidden addresses — but each service area requires verification of an actual operating address, even if the address is hidden from public display. You can typically rank for queries from within your declared service area without needing a separate physical location for each city, provided the service areas are genuinely connected to a primary operating address. For multi-city franchises or chains, the operational lift is substantial — each location needs its own optimization, content, review velocity, and management cadence. The compound payoff is also substantial — businesses with well-optimized multi-location 3-pack visibility typically capture 3–5× the local search traffic of single-location competitors in the same metro area.