List of countries by estimated irregular migrant population

This is a list of countries by estimated numbers of irregular migrants, unauthorized immigrants, undocumented immigrants, or foreign nationals residing without regular immigration status.

List

Rank

Country

Estimated irregular
migrant population

Year

Notes

1

14,000,000

2023

Pew Research Center estimate.

2

3,500,000

2026

Midpoint of reported estimate of 2–5 million undocumented migrants.

3

1,100,000

2017

Midpoint of Pew estimate of 1.0–1.2 million.

4

1,000,000

2017

Midpoint of Pew estimate of 800,000–1.2 million.

5

900,000

2023

Approximate figure based on Peru's interior minister stating that about 60% of 1.5 million foreigners in Peru were in irregular immigration status.

6

600,000

2017

Midpoint of Pew estimate of 500,000–700,000.

7

518,000

2023

Number of undocumented migrants issued work permits under Malaysia's RTK 2.0 programme as of October 2023.

8

500,000

2024

Canadian government briefing note stated estimates suggest there could be as many as 500,000 undocumented migrants in Canada.

9

500,000

2023

UNHCR reported that around 500,000 Venezuelans in Colombia were in an irregular situation.

10

430,000

2019

Midpoint of porCausa estimate of 390,000–470,000 irregular immigrants.

11

350,000

2017

Midpoint of Pew estimate of 300,000–400,000.

12

336,984

2023

Estimate of people living in Chile without regular status.

13

300,000

2017

Approximate estimate based on European unauthorized migrant estimates.

14

182,000

2022

Estimate based on detected or recorded irregular migrant population figures; definitions differ from residence-based estimates.

15

100,000

2017

Approximate estimate based on European unauthorized migrant estimates.

See also

  • Irregular migration
  • Illegal immigration
  • Immigration
  • Human migration
  • Foreign-born population