About this site

Methodology

Principles

eupublicdata publishes only data sourced from institutional providers. It does not interpret, editorialise or argue. Every figure links back to the primary source. Every chart is accompanied by a "how we calculate" note that spells out the underlying dataset, the filter applied, and any normalisation step.

What we publish

What we do NOT publish

Update cadence

Source Cadence Typical lag
Eurostatweekly fetch2–3 months
Frontexbi-weekly~1 month
IOM Missing Migrantsweekly1–2 weeks
UNHCRmonthly~3 months
OECDmonthly~6 months
Italian MoI (sbarchi)daily~1 day

Limitations we declare upfront

Eurostat figures are subject to retrospective revisions. We always reflect the most recent published vintage. Discrepancies between sources (e.g. Frontex crossings vs UNHCR arrivals vs Italian MoI disembarkations) are normal: each counts a slightly different thing using a slightly different methodology. Where the discrepancy is material, we flag it on the relevant page.

Frequently asked questions

Where does eupublicdata get its data?
All figures are sourced from institutional providers: Eurostat, Frontex, EUAA, UNHCR, IOM, OECD, the European Parliament Open Data Portal, EUR-Lex, TED, CORDIS, KOHESIO, the EU Transparency Register and national statistical offices. Every chart and table links back to the primary source dataset.
How often is the data updated?
Eurostat data is refreshed weekly with a typical 2–3 month publication lag. Frontex updates are bi-weekly with ~1 month lag, IOM Missing Migrants weekly, UNHCR monthly with ~3 month lag, OECD monthly with ~6 month lag, and the Italian Ministry of the Interior sbarchi feed daily.
What does eupublicdata NOT publish?
No editorial opinion or commentary, no data from think-tanks, advocacy groups, blogs or media derivatives, no personally identifying information of individuals, and no causal claims constructed by us. Two series may be shown side-by-side without asserting that one causes the other.
How are corrections handled?
Errors can be flagged at [email protected] with the URL, the disputed figure and a pointer to the primary source. Receipt is acknowledged within 72 hours; pipeline issues are typically fixed and redeployed within a week of confirmation. Material corrections — those that change what a careful reader would have taken away — are logged on the corrections page.
What licence covers the data and editorial layer?
Editorial content (commentary, captions, page copy) is published under CC-BY 4.0. Upstream datasets retain their original licences — Eurostat data sits under the European Commission re-use notice (equivalent to CC-BY 4.0), EP Open Data is CC-BY 4.0, EUR-Lex data is under Commission re-use authorisation. Source links on every page allow users to verify and re-use the underlying data directly.

Glossary

Asylum application
A formal request for international protection registered by a third-country national or stateless person with a member state's competent authority. "First-time" applications exclude repeat lodgements.
Irregular border crossing
A detection by Frontex/national border authorities of unauthorised entry into the EU external border. The same person may be detected more than once on different segments.
Return decision
An administrative or judicial act stating that a third-country national must leave the territory. Distinct from executed return — the actual departure or removal.
First permit
A residence permit issued for the first time to a third-country national, broken down by reason (family, work, study, asylum, other).