Mark Litwintschik • 4/28/2026

Reverse Geocoding with Overture Maps

This article details the development of a reverse geocoding prototype using Overture Maps' datasets. The author walks through setting up a high-performance workstation, installing prerequisites like Python 3.12.3, DuckDB with spatial extensions, and QGIS for map rendering. The prototype can fetch 2-letter ISO country codes for any point, return nearest addresses, and list countries within a polygon, all without external API calls after initial data downloads. The post includes technical steps, system specifications, and a comparison of Overture's boundary datasets.

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#Python #Duckdb #Overture Maps