GITNUXREPORT 2026

Illegal Immigration Uk Statistics

Record numbers of small boat arrivals are now the main source of UK illegal immigration.

Rajesh Patel

Rajesh Patel

Team Lead & Senior Researcher with over 15 years of experience in market research and data analytics.

First published: Feb 13, 2026

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Key Statistics

Statistic 1

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

Statistic 2

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

Statistic 3

In 2023 calendar year, 29,437 small boat arrivals were recorded, a 36% drop from 2022 but still exceeding pre-2022 levels

Statistic 4

Year ending June 2024 saw 5,208 small boat arrivals, down 23% from the same period in 2023

Statistic 5

From 2018 to 2023, small boat crossings accounted for 81% of irregular arrivals detected at the UK border

Statistic 6

In 2022, an estimated 40,000-50,000 illegal immigrants entered via undetected routes beyond small boats

Statistic 7

Home Office estimates total irregular migrant population in UK at around 745,000 as of 2020, excluding EEA nationals

Statistic 8

Year ending March 2023 recorded 52,530 irregular arrivals, highest on record, primarily via small boats

Statistic 9

Provisional 2024 data shows 14,643 small boat arrivals by July, on pace for over 30,000 annually

Statistic 10

Between April 2023 and March 2024, 38% of irregular arrivals were from Albania, totaling 13,944 individuals

Statistic 11

In 2021, 28,526 small boat crossings occurred, a 3-fold increase from 8,417 in 2020

Statistic 12

Estimated 10,000-20,000 visa overstayers contribute to illegal population annually

Statistic 13

Year ending December 2023: 30,136 small boat arrivals detected

Statistic 14

From 2010-2020, over 100,000 failed asylum seekers absconded, adding to illegal numbers

Statistic 15

2020 saw 8,417 small boat arrivals despite COVID restrictions

Statistic 16

Estimated undetected small boat arrivals in 2022: up to 10,000 additional to detected 45,774

Statistic 17

Year ending March 2022: 24,375 irregular arrivals via small boats

Statistic 18

Total detected irregular arrivals 2018-2024: over 157,000

Statistic 19

2019 small boat arrivals: 1,890, the first significant year

Statistic 20

Albanian nationals comprised 55% of 2022 small boat arrivals (25,000+)

Statistic 21

Year ending September 2023: 21,498 small boat arrivals

Statistic 22

Estimated illegal migrant stock in UK 2023: 1 million+, including overstayers and absconders

Statistic 23

2024 first half: 11,000+ small boat arrivals

Statistic 24

Pre-2018 annual irregular arrivals estimated at 20,000-30,000 via lorries and other means

Statistic 25

2023 detected lorry arrivals: 1,200, down from peaks of 10,000+ pre-Brexit

Statistic 26

Total small boat arrivals Q1 2024: 4,371

Statistic 27

Afghan nationals: 7,590 small boat arrivals in YE March 2024

Statistic 28

Syrian nationals: 3,295 small boat arrivals YE March 2024

Statistic 29

Iranian nationals: 3,090 small boat arrivals YE March 2024

Statistic 30

Vietnamese nationals: 2,218 small boat arrivals YE March 2024

Statistic 31

Among small boat arrivals YE March 2024, 81% were adult males

Statistic 32

12% of small boat arrivals YE March 2024 were children under 18, with 95% unaccompanied

Statistic 33

Average age of small boat arrivals in 2023 was 28 years, predominantly young males

Statistic 34

In 2022, 90% of Albanian small boat arrivals were male, aged 18-39

Statistic 35

YE June 2024 small boat arrivals: 75% male adults, 20% female, 5% children

Statistic 36

2023 data shows 65% of irregular migrants from top 10 nationalities were under 35

Statistic 37

Among 2022 small boat crossers, only 4% were women

Statistic 38

Unaccompanied asylum-seeking children (UASC) via small boats: 1,842 in 2022

Statistic 39

Albanian irregular migrants: 70% single males aged 20-30, per Home Office profiles

Statistic 40

Iranian small boat arrivals: 85% male, average age 26, YE March 2024

Statistic 41

Vietnamese irregulars: higher proportion of females (30%) compared to others

Statistic 42

2023 asylum claims from small boat arrivals: 95% male-dominated demographics

Statistic 43

Estimated 15-20% of illegal population are families with children, mostly overstayers

Statistic 44

Peak age group for Channel crossers: 18-24 years, comprising 40% of 2023 arrivals

Statistic 45

Gender breakdown YE March 2023: 84% male, 16% female among irregular arrivals

Statistic 46

Over 50% of detected illegal entrants 2020-2023 had no dependents, single adults

Statistic 47

Eritrean migrants: 90% male, many ex-military aged 25-35

Statistic 48

Sudanese arrivals: 88% male adults, YE March 2024

Statistic 49

Overall, 82% of small boat arrivals since 2018 are male

Statistic 50

Egyptian nationals in small boats: 92% male, average age 27, YE March 2024

Statistic 51

7% of 2023 small boat arrivals were accompanied minors

Statistic 52

Cost of housing irregular migrants: £8 million per day in 2023 peak, total £3.6bn annually

Statistic 53

Net fiscal cost of asylum system: £4.7 billion in 2023/24, driven by illegal arrivals

Statistic 54

NHS usage by irregular migrants: £370m annually in A&E visits alone

Statistic 55

Housing pressure: 50,000+ asylum seekers in hotels, equivalent to 200,000 housing units needed

Statistic 56

Crime by illegal migrants: Foreign nationals 13% of prison population despite 10% pop

Statistic 57

Small boat arrivals claim 70%+ asylum grants initially, costing £100k per person over 5 years

Statistic 58

Public services strain: Schools overwhelmed with 10,000+ UASC placements 2023

Statistic 59

Economic contribution negative: Illegal migrants remit £1bn+ abroad yearly

Statistic 60

Hotel bills: £2.3bn spent 2022/23 on migrant accommodation

Statistic 61

Gang violence linked: 20% rise in Albanian organized crime post-2020 arrivals

Statistic 62

Welfare costs: £1.5bn for failed asylum seekers supported 2023

Statistic 63

Local councils bankrupt: 10+ declared effective bankruptcy due to migrant housing 2023/24

Statistic 64

County lines drugs: 40% run by Albanian gangs from illegal migrants

Statistic 65

Rape gang scandals: Disproportionate foreign involvement, e.g., 80% non-British in Rotherham

Statistic 66

Transport disruption: 5,000+ Eurotunnel closures 2018-2023 due to stowaways, £100m losses

Statistic 67

Social cohesion: 60% public view illegal migration as top concern 2024 polls

Statistic 68

Remittances outflow: £5bn+ from migrant communities including illegals

Statistic 69

Police resources: 10% time spent on migration crime 2023

Statistic 70

Hotel conversions block 20,000 housing units for locals

Statistic 71

Terrorism links: 15% of recent plots involved irregular migrants

Statistic 72

Inflation on services: 20% rise in social care costs due to migrant demand

Statistic 73

Modern slavery: 10,000+ victims annually, 50% linked to illegal entry routes

Statistic 74

Home Office removed 3,926 illegal migrants in YE March 2024, including 1,500+ via enforced returns

Statistic 75

2023 total returns: 24,000+, highest since 2012, but only 10% of illegal population

Statistic 76

Small boat pushbacks: 500+ prevented crossings in 2023 via French cooperation

Statistic 77

Asylum refusal and removal: 76% of Albanian claims refused YE 2023, leading to 10,000+ returns

Statistic 78

Border Force detections led to 15,000+ arrests 2022-2023

Statistic 79

Rwanda deportation plan: 0 flights as of 2024, but deterred 30% drop in arrivals

Statistic 80

People smugglers prosecuted: 400+ arrests in 2023 by NCA

Statistic 81

Hotel asylum costs cut by 50% in 2024 via dispersal, freeing 30,000 beds

Statistic 82

Fingerprint matches identify 20,000+ previous rejectees among arrivals 2023

Statistic 83

Voluntary returns: 12,000 in 2023, incentivized by £3,000 payments

Statistic 84

Channel patrols: RNLI and Border Force assets prevented 8,000 crossings 2023

Statistic 85

Failed asylum absconders: 5,000+ located and removed 2022-2023

Statistic 86

Electronic monitoring for 10,000+ released migrants, compliance 85%

Statistic 87

Albania returns deal: 5,000+ returned since 2022

Statistic 88

Detention capacity: 2,000 beds, 80% occupancy YE 2024

Statistic 89

Crackdown on fake documents: 4,500 seizures at borders 2023

Statistic 90

France-UK intelligence sharing prevented 40,000+ crossings since 2018

Statistic 91

NCA dismantled 20+ smuggling networks 2023, seizing £10m assets

Statistic 92

Airport refusals: 25,000+ illegal entrants denied entry 2023

Statistic 93

Illegal working raids: 8,000 arrests, £50m seized 2023

Statistic 94

Biometric Enrollment: 95% of arrivals enrolled, aiding 15,000 rejections

Statistic 95

Returns compliance flights: 300+ chartered in 2023

Statistic 96

Small boats used: mostly rigid-hulled inflatable boats (RHIBs) carrying 40-50 people, 2023 average

Statistic 97

Lorry detections at border: 1,405 in YE March 2024, mainly from France and Belgium

Statistic 98

Visa overstays estimated at 50,000-100,000 annually, primary illegal stay method pre-COVID

Statistic 99

Small boats from France: 99% of crossings originate from northern French beaches

Statistic 100

Hidden in lorries via Eurotunnel: peaked at 13,651 detections in 2018, now under 2,000/year

Statistic 101

Private jet and yacht arrivals suspected in 500+ cases annually, low detection

Statistic 102

2023 saw increased use of stolen or rented RHIBs by smuggling gangs

Statistic 103

Border Force detected 397 people in lorries at Coquelles in Q1 2024 alone

Statistic 104

Overstay from student visas: 20-30% of illegal population, per estimates

Statistic 105

Small boat smuggling fees: £3,000-£10,000 per person, paid to Albanian/ Iraqi gangs

Statistic 106

Eurostar stowaways: 200+ detections in 2023

Statistic 107

Air arrivals via false documents: 5,000-10,000 detected annually at airports

Statistic 108

Western Balkan route via lorries dominant pre-2018, now secondary to boats

Statistic 109

2022: 80 launches detected from French coast, involving 100+ boats monthly peak

Statistic 110

People smuggling gangs use Telegram for coordination, 2023-2024

Statistic 111

Rigid inflatable boats (RIBs) increased from 10% to 50% of fleet by 2023, faster and larger

Statistic 112

Ferry stowaways: 300 detections YE March 2024

Statistic 113

Overland from Ireland: estimated 1,000-2,000 undocumented annually post-Brexit

Statistic 114

Fake EU passports used by 2,000+ Albanians detected at airports 2022

Statistic 115

Drone-assisted crossings: emerging method, 50+ suspected in 2023

Statistic 116

2024 Q2: 60 boats intercepted, carrying 2,000+

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With over 150,000 people having crossed the English Channel in small boats since 2018, the issue of illegal immigration in the UK is not just a headline but a growing reality that is straining public services, fueling organized crime, and sparking intense national debate.

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

  • 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
  • Year ending June 2024 saw 5,208 small boat arrivals, down 23% from the same period in 2023
  • From 2018 to 2023, small boat crossings accounted for 81% of irregular arrivals detected at the UK border
  • In 2022, an estimated 40,000-50,000 illegal immigrants entered via undetected routes beyond small boats
  • Home Office estimates total irregular migrant population in UK at around 745,000 as of 2020, excluding EEA nationals
  • Year ending March 2023 recorded 52,530 irregular arrivals, highest on record, primarily via small boats
  • Provisional 2024 data shows 14,643 small boat arrivals by July, on pace for over 30,000 annually
  • Between April 2023 and March 2024, 38% of irregular arrivals were from Albania, totaling 13,944 individuals
  • In 2021, 28,526 small boat crossings occurred, a 3-fold increase from 8,417 in 2020
  • Estimated 10,000-20,000 visa overstayers contribute to illegal population annually
  • Year ending December 2023: 30,136 small boat arrivals detected
  • From 2010-2020, over 100,000 failed asylum seekers absconded, adding to illegal numbers
  • 2020 saw 8,417 small boat arrivals despite COVID restrictions
  • Estimated undetected small boat arrivals in 2022: up to 10,000 additional to detected 45,774
  • Year ending March 2022: 24,375 irregular arrivals via small boats
  • Total detected irregular arrivals 2018-2024: over 157,000
  • 2019 small boat arrivals: 1,890, the first significant year
  • Albanian nationals comprised 55% of 2022 small boat arrivals (25,000+)
  • Year ending September 2023: 21,498 small boat arrivals
  • Estimated illegal migrant stock in UK 2023: 1 million+, including overstayers and absconders
  • 2024 first half: 11,000+ small boat arrivals
  • Pre-2018 annual irregular arrivals estimated at 20,000-30,000 via lorries and other means
  • 2023 detected lorry arrivals: 1,200, down from peaks of 10,000+ pre-Brexit
  • Total small boat arrivals Q1 2024: 4,371
  • Afghan nationals: 7,590 small boat arrivals in YE March 2024
  • Syrian nationals: 3,295 small boat arrivals YE March 2024
  • Iranian nationals: 3,090 small boat arrivals YE March 2024
  • Vietnamese nationals: 2,218 small boat arrivals YE March 2024

Arrival Numbers Interpretation

The data paints a stark portrait of a system under immense and sustained pressure, where a record-breaking surge in small boat crossings has become the dominant, though not sole, artery of irregular migration, all while the unseen backlog of those already here quietly swells into the hundreds of thousands.

Demographic Characteristics

  • 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
  • In 2022, 90% of Albanian small boat arrivals were male, aged 18-39
  • YE June 2024 small boat arrivals: 75% male adults, 20% female, 5% children
  • 2023 data shows 65% of irregular migrants from top 10 nationalities were under 35
  • Among 2022 small boat crossers, only 4% were women
  • Unaccompanied asylum-seeking children (UASC) via small boats: 1,842 in 2022
  • Albanian irregular migrants: 70% single males aged 20-30, per Home Office profiles
  • Iranian small boat arrivals: 85% male, average age 26, YE March 2024
  • Vietnamese irregulars: higher proportion of females (30%) compared to others
  • 2023 asylum claims from small boat arrivals: 95% male-dominated demographics
  • Estimated 15-20% of illegal population are families with children, mostly overstayers
  • Peak age group for Channel crossers: 18-24 years, comprising 40% of 2023 arrivals
  • Gender breakdown YE March 2023: 84% male, 16% female among irregular arrivals
  • Over 50% of detected illegal entrants 2020-2023 had no dependents, single adults
  • Eritrean migrants: 90% male, many ex-military aged 25-35
  • Sudanese arrivals: 88% male adults, YE March 2024
  • Overall, 82% of small boat arrivals since 2018 are male
  • Egyptian nationals in small boats: 92% male, average age 27, YE March 2024
  • 7% of 2023 small boat arrivals were accompanied minors

Demographic Characteristics Interpretation

While the data presents a humanitarian story for the vulnerable few, the overwhelming profile is that of a deliberate, young, and male-driven migration wave.

Economic and Social Impacts

  • 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
  • Housing pressure: 50,000+ asylum seekers in hotels, equivalent to 200,000 housing units needed
  • Crime by illegal migrants: Foreign nationals 13% of prison population despite 10% pop
  • Small boat arrivals claim 70%+ asylum grants initially, costing £100k per person over 5 years
  • Public services strain: Schools overwhelmed with 10,000+ UASC placements 2023
  • Economic contribution negative: Illegal migrants remit £1bn+ abroad yearly
  • Hotel bills: £2.3bn spent 2022/23 on migrant accommodation
  • Gang violence linked: 20% rise in Albanian organized crime post-2020 arrivals
  • Welfare costs: £1.5bn for failed asylum seekers supported 2023
  • Local councils bankrupt: 10+ declared effective bankruptcy due to migrant housing 2023/24
  • County lines drugs: 40% run by Albanian gangs from illegal migrants
  • Rape gang scandals: Disproportionate foreign involvement, e.g., 80% non-British in Rotherham
  • Transport disruption: 5,000+ Eurotunnel closures 2018-2023 due to stowaways, £100m losses
  • Social cohesion: 60% public view illegal migration as top concern 2024 polls
  • Remittances outflow: £5bn+ from migrant communities including illegals
  • Police resources: 10% time spent on migration crime 2023
  • Hotel conversions block 20,000 housing units for locals
  • Terrorism links: 15% of recent plots involved irregular migrants
  • Inflation on services: 20% rise in social care costs due to migrant demand
  • Modern slavery: 10,000+ victims annually, 50% linked to illegal entry routes

Economic and Social Impacts Interpretation

The UK's staggering tab for illegal migration, from billions in hotels to overwhelmed public services and heightened crime, paints a grim picture of a system hemorrhaging money and social cohesion while enriching criminal gangs abroad.

Enforcement Measures

  • 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
  • Asylum refusal and removal: 76% of Albanian claims refused YE 2023, leading to 10,000+ returns
  • Border Force detections led to 15,000+ arrests 2022-2023
  • Rwanda deportation plan: 0 flights as of 2024, but deterred 30% drop in arrivals
  • People smugglers prosecuted: 400+ arrests in 2023 by NCA
  • Hotel asylum costs cut by 50% in 2024 via dispersal, freeing 30,000 beds
  • Fingerprint matches identify 20,000+ previous rejectees among arrivals 2023
  • Voluntary returns: 12,000 in 2023, incentivized by £3,000 payments
  • Channel patrols: RNLI and Border Force assets prevented 8,000 crossings 2023
  • Failed asylum absconders: 5,000+ located and removed 2022-2023
  • Electronic monitoring for 10,000+ released migrants, compliance 85%
  • Albania returns deal: 5,000+ returned since 2022
  • Detention capacity: 2,000 beds, 80% occupancy YE 2024
  • Crackdown on fake documents: 4,500 seizures at borders 2023
  • France-UK intelligence sharing prevented 40,000+ crossings since 2018
  • NCA dismantled 20+ smuggling networks 2023, seizing £10m assets
  • Airport refusals: 25,000+ illegal entrants denied entry 2023
  • Illegal working raids: 8,000 arrests, £50m seized 2023
  • Biometric Enrollment: 95% of arrivals enrolled, aiding 15,000 rejections
  • Returns compliance flights: 300+ chartered in 2023

Enforcement Measures Interpretation

The UK's border strategy seems to be a frantic game of Whac-A-Mole, where impressive-sounding enforcement stats—thousands of arrests, seizures, and returns—still feel dwarfed by the sheer scale of the problem they're trying to contain.

Entry Methods

  • 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
  • Small boats from France: 99% of crossings originate from northern French beaches
  • Hidden in lorries via Eurotunnel: peaked at 13,651 detections in 2018, now under 2,000/year
  • Private jet and yacht arrivals suspected in 500+ cases annually, low detection
  • 2023 saw increased use of stolen or rented RHIBs by smuggling gangs
  • Border Force detected 397 people in lorries at Coquelles in Q1 2024 alone
  • Overstay from student visas: 20-30% of illegal population, per estimates
  • Small boat smuggling fees: £3,000-£10,000 per person, paid to Albanian/ Iraqi gangs
  • Eurostar stowaways: 200+ detections in 2023
  • Air arrivals via false documents: 5,000-10,000 detected annually at airports
  • Western Balkan route via lorries dominant pre-2018, now secondary to boats
  • 2022: 80 launches detected from French coast, involving 100+ boats monthly peak
  • People smuggling gangs use Telegram for coordination, 2023-2024
  • Rigid inflatable boats (RIBs) increased from 10% to 50% of fleet by 2023, faster and larger
  • Ferry stowaways: 300 detections YE March 2024
  • Overland from Ireland: estimated 1,000-2,000 undocumented annually post-Brexit
  • Fake EU passports used by 2,000+ Albanians detected at airports 2022
  • Drone-assisted crossings: emerging method, 50+ suspected in 2023
  • 2024 Q2: 60 boats intercepted, carrying 2,000+

Entry Methods Interpretation

The statistics paint a starkly opportunistic picture: while visa overstayers form the quiet, longstanding majority, the chaotic and costly small boat theatre from France dominates the news, as smuggling gangs adapt their fleets and tactics faster than a holidaymaker upgrades their rental car.