One directory, two honest tiers

Curated tier — directory pages, cross-checked

These countries have full browsable pages. Every value carries its sources and a verification status; conflicting sources are shown, not silently resolved.

• United States — ZIP pages with Census demographics, land area & density, county + FIPS, congressional districts, NOAA climate normals, USDA planting zone, NANPA area codes, boundary maps and OSM place counts.
• France — Communes and départements with cross-checked codes; French-language pages.
• Germany — Localities per Kreis and Land, from GeoNames; single-source pending an official cross-check.
• Austria — Localities per Bezirk and Bundesland, from GeoNames; single-source pending an official cross-check.
• Spain — Localities per provincia and comunidad autónoma, from GeoNames; single-source pending an official cross-check.
• Algeria — Communes per wilaya; known numbering divergences shown with sources rather than silently resolved.
• Tunisia — Localities per delegation from two independent compilations.
• Morocco — Localities per province and region.

Countries are promoted into this tier one at a time, as reliable sources are identified, normalized and verified — Italy is next in the pipeline. We would rather cover a country properly later than thinly today.

Global tier — 114 more countries via the API

1,636,138 postal codes from the GeoNames worldwide dump (CC BY 4.0) are served through the free API and MCP server: code → place, administrative areas and coordinates. These records are marked tier: "bulk" and verification: "source-single" — a single-source lookup, honestly labelled, without the curated tier's cross-checks or enrichments. Some countries are recorded at district granularity (UK outward codes, Canadian FSAs); responses say so.

Counts are rows in the GeoNames dump, refreshed on import; a "code" may be a district rather than a unit code depending on the country. Missing a country you need? Tell us — demand influences the promotion queue.