Key Takeaways
- In the year ending March 2024, 36,810 people were detected crossing the English Channel in small boats, marking the highest annual total since records began in 2018
- Between 2018 and March 2024, over 150,000 people arrived in the UK via small boat crossings, with a peak of 45,774 in 2022
- In 2023 calendar year, 29,437 small boat arrivals were recorded, a 36% drop from 2022 but still exceeding pre-2022 levels
- Among small boat arrivals YE March 2024, 81% were adult males
- 12% of small boat arrivals YE March 2024 were children under 18, with 95% unaccompanied
- Average age of small boat arrivals in 2023 was 28 years, predominantly young males
- Small boats used: mostly rigid-hulled inflatable boats (RHIBs) carrying 40-50 people, 2023 average
- Lorry detections at border: 1,405 in YE March 2024, mainly from France and Belgium
- Visa overstays estimated at 50,000-100,000 annually, primary illegal stay method pre-COVID
- Home Office removed 3,926 illegal migrants in YE March 2024, including 1,500+ via enforced returns
- 2023 total returns: 24,000+, highest since 2012, but only 10% of illegal population
- Small boat pushbacks: 500+ prevented crossings in 2023 via French cooperation
- Cost of housing irregular migrants: £8 million per day in 2023 peak, total £3.6bn annually
- Net fiscal cost of asylum system: £4.7 billion in 2023/24, driven by illegal arrivals
- NHS usage by irregular migrants: £370m annually in A&E visits alone
Record numbers of small boat arrivals are now the main source of UK illegal immigration.
Arrival Numbers
Arrival Numbers Interpretation
Demographic Characteristics
Demographic Characteristics Interpretation
Economic and Social Impacts
Economic and Social Impacts Interpretation
Enforcement Measures
Enforcement Measures Interpretation
Entry Methods
Entry Methods Interpretation
Sources & References
- Reference 1GOVgov.ukVisit source
- Reference 2HOMEOFFICEMEDIAhomeofficemedia.blog.gov.ukVisit source
- Reference 3MIGRATIONOBSERVATORYmigrationobservatory.ox.ac.ukVisit source
- Reference 4TELEGRAPHtelegraph.co.ukVisit source
- Reference 5BBCbbc.co.ukVisit source
- Reference 6CPScps.org.ukVisit source
- Reference 7MIGRATIONWATCHUKmigrationwatchuk.orgVisit source
- Reference 8REFUGEECOUNCILrefugeecouncil.org.ukVisit source
- Reference 9NATIONALCRIMEAGENCYnationalcrimeagency.gov.ukVisit source
- Reference 10IRISHNEWSirishnews.comVisit source
- Reference 11ICIBIRMINGHAMicibirmingham.org.ukVisit source
- Reference 12OBRobr.ukVisit source
- Reference 13GETLINKGROUPgetlinkgroup.comVisit source
- Reference 14IPSOSipsos.comVisit source
- Reference 15WORLDBANKworldbank.orgVisit source
- Reference 16COLLEGEcollege.police.ukVisit source
- Reference 17MI5mi5.gov.ukVisit source
- Reference 18KINGSFUNDkingsfund.org.ukVisit source






