Field notes · 2 September 2025

City clusters versus raw GPS pins for audience reviews

Raw coordinates feel precise, yet clustered cities often tell a clearer story for marketing and product decisions.

City skyline at dusk

GPS-level points look impressive on a map, but most growth questions need stable places people recognize: Greater Bangkok, eastern seaboard cities, or southern tourist hubs.

City clusters reduce privacy risk and reporting churn when users move a few kilometres within the same metro area. They also make creative briefs easier—writers can speak to a known place rather than a coordinate.

Keep raw precision only where it serves a concrete need, such as delivery radius or store proximity. For geo-based audience performance tracking aimed at acquisition and retention, clusters usually outperform pin-level charts.

Document how you assign ambiguous locations (IP-only sessions, VPN users, missing permission). An audit that ignores these edge cases will overstate certainty in thin markets.

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