The most important thing: Create a page for a distinct customer need or market, not merely for a place name.
1Define the service boundary
List where you can actually sell, ship, travel, support or operate. Record restrictions, lead times, language capability and regional product differences. Separate desired expansion from present capability so marketing does not promise unavailable service.
A coverage matrix is approved by operations.
2Build genuinely useful location pages
For each real branch or distinct service area, explain staff or delivery model, contact details, availability, relevant services, directions where appropriate and local proof. Link to shared service detail instead of duplicating entire pages with a city name changed.
Every location page has information a customer in that location would need.
3Localize the buying experience
Use separate stable URLs for important language or regional versions. Translate the complete decision path, including forms and error messages. Adapt currency, units, examples, delivery, support and terms. Have a competent local-language reviewer check meaning.
The customer can finish the task in the chosen language and market.
4Connect and maintain variants
Use reciprocal hreflang references where appropriate, including each page itself and relevant alternatives. Keep canonicals deliberate, avoid forced redirects that hide alternatives and provide a visible market selector. Retire obsolete market pages with an appropriate plan.
Language/region variants resolve correctly and stay current.
A concrete example
Avoid this mistake: An address in every city, a huge service-area list or hundreds of doorway pages does not create real coverage.