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API Access

Access dataset files directly from scripts, code, or AI agents.

Browse dataset files

Dataset Files

Each file has a stable URL (r-link) that you can use directly in scripts, apps, or AI agents. These URLs are permanent and safe to hardcode.

/logistics/postal-codes-lk/

├ .licensing-notes.md

https://datahub.io/logistics/postal-codes-lk/_r/-/.licensing-notes.md

├ .migration-notes.md

https://datahub.io/logistics/postal-codes-lk/_r/-/.migration-notes.md

├ ATTRIBUTION.txt

https://datahub.io/logistics/postal-codes-lk/_r/-/ATTRIBUTION.txt

├ README.md

https://datahub.io/logistics/postal-codes-lk/_r/-/README.md

└ datapackage.yaml

https://datahub.io/logistics/postal-codes-lk/_r/-/datapackage.yaml

Key Files

Start with these files — they give you everything you need to understand and access the dataset.

datapackage.yaml— metadata & schema

https://datahub.io/logistics/postal-codes-lk/_r/-/datapackage.yaml

README.md— documentation

https://datahub.io/logistics/postal-codes-lk/_r/-/README.md

Typical Usage

1. Fetch datapackage.yaml to inspect schema and resources
2. Download data resources listed in datapackage.yaml
3. Read README.md for full context

Data Files

postal-codes-lk-sample

Field	Type	Description	Constraints	Title
country_code	string	ISO 3166-1 alpha-2 -- always LK		Country Code
postal_code	string	Sri Lankan postal code (5 digits)	{ "pattern": "^\\d{5}$" }	Postal Code
place_name	string	Post office / locality name		Place Name
admin_name1	string	Province (9 total)		Administrative Name 1
admin_code1	string	ISO 3166-2:LK province code		Administrative Code 1
admin_name2	string	District -- 24/25 covered		Administrative Name 2
admin_code2	string	ISO 3166-2:LK district code		Administrative Code 2
admin_name3	string	Not populated -- no third admin tier in this source		Administrative Name 3
admin_code3	string	Not populated		Administrative Code 3
latitude	number	GeoNames latitude (WGS84)		Latitude
longitude	number	GeoNames longitude (WGS84)		Longitude
accuracy	string	GeoNames accuracy of latitude/longitude. GeoNames documents 1=estimated, 4=geonameid, 6=centroid of addresses or shape; other values (e.g. 3) occur upstream without documentation. Empty where GeoNames gives none.		Accuracy
alternative_city_name	string	Not populated in this release		Alternative City Name

Download

Download sample CSV

About

Last updated: 2 October 2026
Total rows: 100
Format: CSV
File size: 7.58 kB
Source: GeoNames postal code database -- Sri Lanka (LK)
License: Creative Commons Attribution 4.0 International

About this dataset

Sri Lanka (LK) — internal licensing notes

Source research, 2026-09-11 — tier-1 check done before falling back

Checked Sri Lanka Post (slpost.gov.lk, the official national postal operator) first via search — referenced as the authority but no bulk download page or open-data catalogue entry surfaced in this pass; not directly fetched/confirmed in this session.

A real community lead found, checked and NOT used as-is

github.com/slwdc/Postal-Codes — a community-compiled CSV (Postal_Codes.csv, 75,818 bytes), MIT-licensed repo. Checked directly: the repository's own README.md (per search result summary) states it is incomplete — roughly 200 postal codes missing, mostly from the Northern Province. The MIT licence covers the compiler's own repository, not a confirmed redistribution grant from Sri Lanka Post for the underlying government data — same reasoning already applied to India's GitHub mirror earlier in this project, except that mirror was a verified exact, complete republish of the official file; this one is a self-described incomplete compilation, not a verified 1:1 copy.

GeoNames — real fallback candidate, not yet evaluated in depth this pass

download.geonames.org/export/zip/LK.zip returns 200 — GeoNames does have LK coverage (not checked further in this pass; row count/admin structure not yet inspected). Per this project's standing rule, GeoNames is the fallback of last resort here, to be evaluated only after the official/community options above are exhausted or a build is actually commissioned — not defaulted to.

Verdict

Built 2026-09-11 — GeoNames fallback used as anticipated. 1,837 rows, 24/25 ISO 3166-2:LK districts covered (Kilinochchi has zero rows in the source — confirmed real, not a build error, and independently consistent with the rejected GitHub compilation's own disclosure of Northern Province gaps). admin_code1 (province) and admin_code2 (district) derived via verified NAME-based crosswalks against Wikipedia's ISO_3166-2:LK page — GeoNames' own admin codes are internal numbers/ abbreviations, not ISO. See scripts/build_postal_codes_product.py.

Published: git (datasets/lk/{datapackage.yml,scripts/}) and the samples bucket (100-row preview, postal-codes-samples key lk/lk.csv). Main R2 bucket publish blocked — datasets/lk/scripts/publish_r2.py --apply failed with AccessDenied on PutObject, the same session-wide 403/AccessDenied affecting every main-bucket write this session (confirmed independently on fr/fr.csv, pk/pk.csv). _meta/catalog.json not updated. datapackage.yml set to is_premium: true, premium_tier: B (single-source GeoNames normalisation, same shape as PK/KE/EE), real licenses/sources (was a placeholder "Multiple sources" link).