Who arrives by illegal entry routes, who claims asylum and what happens to the claims — the published nationality tables side by side, calendar year 2025 and Year ending March 2026.
Read this first
This page places separate official tables near each other; it never merges them. Arrivals, asylum claims and prison counts are different populations measured on different dates and different counting bases — a nationality appearing in more than one table is not evidence that the same people appear in each. Numbers describe system flows by recorded nationality; they say nothing about any individual.
Illegal-route arrivals and their asylum claims
The ten largest nationalities detected arriving by illegal entry routes (calendar year 2025), beside the asylum table for the same nationality (Year ending March 2026). The two sources use different periods — the columns are published, not derived.
Illegal-route arrivals, asylum claims, grant rate and awaiting decision, by nationality
Grant rates are at initial decision; appeals change final outcomes. The full asylum-by-nationality table, including nationalities that rarely arrive by illegal routes, is on the asylum page.
How each nationality's arrivals moved, 2018–2025
Detected illegal-route arrivals per complete calendar year, one panel per nationality — the twelve largest in 2025, exactly as published.
Eritrea 7,602 in 2025
Eritrea: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Afghanistan 4,755 in 2025
Afghanistan: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Iran 4,489 in 2025
Iran: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Sudan 4,432 in 2025
Sudan: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Somalia 3,783 in 2025
Somalia: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Ethiopia 1,695 in 2025
Ethiopia: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Iraq 1,636 in 2025
Iraq: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Syria 1,528 in 2025
Syria: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Vietnam 1,433 in 2025
Vietnam: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Yemen 1,337 in 2025
Yemen: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Stateless 1,238 in 2025
Stateless: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
Not currently recorded 1,192 in 2025
Not currently recorded: detected illegal-route arrivals per calendar year. Illegal entry routes to the UK summary tables, year ending March 2026 (Home Office).
A different register: foreign nationals in prison
This table is deliberately separate from the arrivals and asylum tables above, and the site does not join them: prison nationality is recorded citizenship, not immigration status — "foreign national" includes people living here lawfully for decades — and the prison snapshot has no counting basis in common with arrivals or claims. It is shown because a watchdog should publish it, not because it connects to the tables above.
Largest foreign-national groups in prison, England and Wales
Full prison and deportation context, including the offence-group breakdown, is on the crime page.
Data as of
Cite this page
By nationality: arrivals, claims and outcomes. Migration Watchdog, data as of 2026-08-13.
https://migrationwatchdog.com/nationalities
Underlying figures: UK official statistics, re-published under OGL v3.0 — every figure links to its source on the page.