I notice your question seems to have a formatting issue, but I'll address what you're asking about: how often Google Maps ranking factors changed around 2018 and what that means for your agency clients in Los Angeles.
Google's local search algorithm (which powers Maps rankings) doesn't have a published schedule for updates. However, around 2018, Google was actively refining how it weighted ranking signals. The major factors that consistently mattered then—and still do—were business citations (consistency of name, address, phone number across directories), review quantity and recency, and relevance signals like categories and service areas. What changed over 2018 was the weighting. Google increasingly prioritized recent reviews and response rates to those reviews, making it critical to encourage clients to actively manage their Google Business Profile. For LA agencies, this meant the playbook shifted from just building citations to actively managing reputation as a ranking lever.
The practical takeaway is that Google doesn't announce local ranking changes the way it does core algorithm updates. You should monitor your clients' local rankings quarterly to catch shifts, but you shouldn't expect predictable monthly changes. Around 2018 specifically, some agencies noticed ranking volatility in competitive local markets like Los Angeles, which suggested Google was testing new signals or adjusting weights on existing ones. If you were managing local clients then, you likely saw that on-page relevance (matching search intent with service descriptions) and link velocity (gaining backlinks at a steady rate) started mattering more in local results.
For your current clients, treat local SEO as a continuous optimization process rather than something that gets "set and forgotten." Audit their Google Business Profile monthly for incomplete information, monitor review velocity, and track which competitors are gaining traction. The exact update frequency matters less than your ability to react when rankings shift. Keep clients' citations clean, encourage reviews systematically, and ensure their service area targeting matches where they actually serve customers. These fundamentals have remained stable since 2018 because they align with what Google actually needs to rank local businesses accurately—verified information, social proof, and relevance signals.
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