Administrative boundary data

Find the boundary data you need.

Browse administrative boundaries for mapping, research, and web projects. Every dataset includes its update date, source, and usage license.

Available datasets

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Taiwan Township Boundaries

Township, county-administered city and district boundaries.

Download GeoJSON 4.70 MiB · 368 records
Updated
Records
368
File size
4.70 MiB
Data source
內政部國土測繪中心
Usage license
政府資料開放授權條款－第1版

Attribution內政部國土測繪中心 2025 鄉鎮市區界線（1140318）；此開放資料依政府資料開放授權條款第1版進行公眾釋出。

Technical details and integration example
Dataset ID
tw-townships
Release ID
2026-07-04.1
CRS
EPSG:4326
Coverage
114.3592898390001, 10.371347663000051, 124.5611539250001, 26.38527526200005
SHA-256
4ab5da8297a75c3e3fd2cb272642693a91f04299a739897dffc8d7ae029d5196

JavaScript integration

const response = await fetch('/datasets/tw-townships/releases/v1/2026-07-04.1/data.geojson');
const boundaries = await response.json();

Taiwan Township Boundaries boundary preview

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Download GeoJSON

UK Local Authority District Boundaries

May 2025 United Kingdom Local Authority District boundaries, ultra generalised and clipped.

Download GeoJSON 4.90 MiB · 361 records
Updated
Records
361
File size
4.90 MiB
Data source
Office for National Statistics
Usage license
Open Government Licence v3.0

AttributionSource: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2025.

Technical details and integration example
Dataset ID
uk-local-authority-districts
Release ID
2026-07-10.1
CRS
EPSG:4326
Coverage
-8.64999583330431, 49.882346492852, 1.76357118981522, 60.8608667553459
SHA-256
50e4da9f80df1c8a2181488b80126ecd53429138c12bf3bdaa74ff8bf647a4b1

JavaScript integration

const response = await fetch('/datasets/uk-local-authority-districts/releases/v1/2026-07-10.1/data.geojson');
const boundaries = await response.json();

UK Local Authority District Boundaries boundary preview

Pan or zoom the map, then select an area to view its name.

Download GeoJSON