---
id: "gadm_gid"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["geo"]
langs: ["common"]
quality: 85
url: "https://registry.apicrafter.io/datatype/gadm_gid"
---

# GADM area id (`gadm_gid`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Identifier of an administrative area in the GADM database of global administrative areas: the ISO 3166-1 alpha-3 code of the country, the number of the area at each level, separated by dots, and the GADM version suffix, as in VNM.25.13_1. GBIF occurrences give it in gadm.level1.gid to level3.gid; level 0 is the alpha-3 code alone.

- Parent datatype: `id`
- Personal data (PII): no
- Categories: Geographic identifiers (geo)
- Countries: global
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^[A-Z]{3}(?:\.\d+)+_\d+$
```

## Examples

- `VNM.25_1` — Level 1: Ho Chi Minh City
- `VNM.25.13_1` — Level 2
- `VNM.25.13.2_1` — Level 3
- `VNM` (invalid example) — Level 0 is the country code

## Metacrafter rules

1 rules: 0 match the field name, 1 match values.

- `gadmgidvalue` (data, `common/geo.yaml`)

## Supported by tools

- `metacrafter`

## Sources

- doc: <https://gadm.org/>

## Quality

Score 85/100. Missing: mapping (Wikidata, Schema.org, ...), translation.

JSON: <https://registry.apicrafter.io/api/v1/datatypes/gadm_gid.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/geo/gadm_gid.yaml>