Official base of postal codes in Pays de la Loire

DatasetNational · FranceNo auth

Official basis of the postal codes of the Pays de la Loire Region, enriched by the INSEE libelle of the commune, the Libellé of the EPCI of attachment and the CN ment for the new municipalities.

boundaries

Trust score

How is this computed?

good

Composite of 5 axes from our methodology (proof-based officialness, live verification, metadata completeness, license clarity, agent readiness).

Officialnessweight 25%50/100
Not public-sector → neutral score; not subject to the proof checker.
Availabilityweight 25%100/100
Latest verification succeeded.
Metadata completenessweight 20%46/100
6 of 13 recommended metadata fields populated.
License clarityweight 15%100/100
Normalised to odbl-1.0 — open, redistributable.
Agent readinessweight 15%40/100
Documentation present · 4 distribution(s) declared · Landing page present

Data schema (9 fields)

Field	Type	Description
Département	number	—
INSEE	int	—
epci	text	—
Communes nouvelles	text	—
Nom_commune	text	—
Code_postal	int	—
Ligne_5	text	—
Libellé_d_acheminement	text	—
coordonnees_gps	text	—

Schema inferred from the distribution file's first records 1 hour ago. Column types are sampled estimates, not source-declared.

Sample data (5 records)

Record 1epci: Communauté de communes de Châteaubriant- · INSEE: 44078

{
  "epci": "Communauté de communes de Châteaubriant-Derval",
  "INSEE": "44078",
  "Ligne_5": "",
  "Code_postal": "44670",
  "Nom_commune": "JUIGNE DES MOUTIERS",
  "Département": "44.0",
  "coordonnees_gps": "47.689350663, -1.212268965",
  "Communes nouvelles": "",
  "Libellé_d_acheminement": "JUIGNE DES MOUTIERS"
}

Record 2epci: Communauté Urbaine de Nantes Métropole · INSEE: 44172

{
  "epci": "Communauté Urbaine de Nantes Métropole",
  "INSEE": "44172",
  "Ligne_5": "",
  "Code_postal": "44980",
  "Nom_commune": "STE LUCE SUR LOIRE",
  "Département": "44.0",
  "coordonnees_gps": "47.253530109, -1.472778353",
  "Communes nouvelles": "",
  "Libellé_d_acheminement": "STE LUCE SUR LOIRE"
}

Record 3epci: Communauté de communes de Grand Lieu · INSEE: 44155

{
  "epci": "Communauté de communes de Grand Lieu",
  "INSEE": "44155",
  "Ligne_5": "PONT JAMES",
  "Code_postal": "44310",
  "Nom_commune": "ST COLOMBAN",
  "Département": "44.0",
  "coordonnees_gps": "47.025197223, -1.5583909980000001",
  "Communes nouvelles": "",
  "Libellé_d_acheminement": "ST COLOMBAN"
}

Record 4epci: Communauté Urbaine de Nantes Métropole · INSEE: 44009

{
  "epci": "Communauté Urbaine de Nantes Métropole",
  "INSEE": "44009",
  "Ligne_5": "",
  "Code_postal": "44115",
  "Nom_commune": "BASSE GOULAINE",
  "Département": "44.0",
  "coordonnees_gps": "47.212054775, -1.462261066",
  "Communes nouvelles": "",
  "Libellé_d_acheminement": "BASSE GOULAINE"
}

Record 5epci: Communauté d'agglomération Région Nazair · INSEE: 44210

{
  "epci": "Communauté d'agglomération Région Nazairienne et de l'Estuaire (la CARENE)",
  "INSEE": "44210",
  "Ligne_5": "",
  "Code_postal": "44570",
  "Nom_commune": "TRIGNAC",
  "Département": "44.0",
  "coordonnees_gps": "47.312189171, -2.207153198",
  "Communes nouvelles": "",
  "Libellé_d_acheminement": "TRIGNAC"
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Query examples

curl -sL 'https://data.paysdelaloire.fr/api/explore/v2.1/catalog/datasets/base-officielle-des-codes-postaux-en-pays-de-la-loire/exports/csv?use_labels=true' -o data.csv

Full csv file download — the schema shown was inferred from the file's first records.