3.2 million
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obama
trump
biden
0
12
90
95
98
00
03
05
06
07
08
09
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21

This is How the Undocumented Immigrant Population in the US is Changing

Discover how unauthorized immigration has been transforming for over 30 years.
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Published 13 Mar 2024 – 08:40 AM EDT
1990
3.5 million
Undocumented immigrants in the US
Each point represents 100,000 people
Record
12.2 million
flechita
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During Ronald Reagan's istration (1981-1989), the Immigration Reform and Control Act (IRCA) of 1986 granted amnesty to nearly 3 million undocumented individuals, the majority of whom were Mexican.
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1995
The undocumented immigrant population increases to 5,700,000. Two years earlier, under Bill Clinton, the construction of the wall on the border between San Diego (California) and Tijuana (Mexico) had begun.
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In 1996, the Immigration Reform and Control Act is approved. It includes penalties of 3 or 10 years of entry prohibition, depending on the case, and lifetime punishment for unauthorized reentry after deportation.
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In 2001, Presidents G.W. Bush of the United States and V. Fox of Mexico agreed on an immigration reform to legalize about 3 million workers. The negotiations were thwarted by the 9/11 attacks.
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2003
The Department of Homeland Security (DHS) is established,which combines 23 agencies, including USCIS, CBP (where the Border Patrol operates), and ICE (responsible for deportations).
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2005
The The Real ID Act is approved. Asylum policy is tightened, requiring applicants to remain detained until their cases are resolved for reasons of national security.
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2006
Congress fails to a bipartisan immigration reform and instead approves the Border Wall Act, authorizing the construction of fences along the border with Mexico.
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2007
The number of undocumented immigrants reaches a record: 12.2 million. Several unsuccessful attempts at immigration reform occur in both chambers of Congress with the backing of the White House.
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2009
Obama arrives with the la promise of immigration reform in his first 100 days (delayed to his second term). Massive raids on workplaces of undocumented immigrants occur.
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2012
Obama is reelected. Faced with Congress' inaction, he creates DACA, protecting at least 1.4 million undocumented youth who entered the United States before the age of 16.
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2013
The Senate approves an immigration reform plan. After detaining more than 46,000 undocumented minors, Obama recognizes the crisis, warned by the UN, and establishes deportation priorities.
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2014
Obama opens detention centers or undocumented immigrants on military bases and increases bed capacity in ICE jails.
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2015
The Republicans ignore Obama's calls to resume the debate on reform and discuss a law to regularize the "dreamers" protected by DACA.
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2016
The Republican candidate Donald Trump wins the presidential election.
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2017
Trump initiates the "zero tolerance" policy: he accelerates deportations and brings criminal charges against those who cross the border without authorization seeking asylum. Forced family separation takes place.
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2018
Forced separations began secretly since April 2017. Trump cancels DACA and Temporary Protected Status programs. The count of successful illegal crossings is eliminated.
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2019
The The Migrant Protection Protocols (MPP) come into effect, which sent more than 70,000 foreigners to Mexico while their asylum cases were being resolved in the United States.
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2020
The government closes the borders due to the COVID-19 pandemic. It dusts off an old tool, Title 42, to expeditiously deport foreigners at the border.
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2021
Biden dismantles "zero tolerance": he prioritizes the expulsion of foreigners who pose a threat and creates a task force to reunify families forcibly separated.
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2023
The crisis at the southern border worsens with over 3 million detentions. The government is unable to process the hundreds of thousands of asylum cases. Conversations are initiated to address the crisis.

For over a decade, the number of undocumented immigrants in the United States has remained stable compared to the peak reached in 2007 when 12.2 million people lived in the country without authorization. These periods of high immigration often coincide with times of economic prosperity. This was the case in the late 1990s and early 2000s with the arrival of immigrants primarily for jobs in the agriculture, construction, and service industries.

The flow of migration also increased sharply when promises of immigration reform were heard during presidential campaigns, such as in 2000, 2008, 2012, and 2020, when candidates like George W. Bush, Barack Obama, and Joe Biden offered the possibility of legalizing millions of undocumented immigrants in the United States.

All of them came to the presidency, yet none succeeded or has succeeded in pushing through those reforms. The attacks of September 11, 2001, derailed Bush's plan to legalize three million undocumented individuals, mainly Mexican agricultural workers. In 2013, the Senate approved a bipartisan immigration reform bill that included a pathway to citizenship for millions of undocumented immigrants, but it was dismissed in the Republican-controlled House of Representatives. In 2021, the House of Representatives ed two bills sent by the Joe Biden White House. In the Senate, controlled by Democrats with only 51 votes, they faced Republican rejection.

A population becoming increasingly diverse

For over 15 years, the number of Mexicans entering the United States without authorization or overstaying their visas has steadily increased. In 2007, this figure was nearly seven million during the istration of George W. Bush, according to the estimates from the Pew Research Center.

Total undocumented immigrants

Undocumented immigrants from Mexico

For the first time,the

total of immigrants from

other countries

sures the total number of

undocumented Mexicans

Millions of people

15

12

9

6

3

0

90

98

03

06

08

10

12

14

16

18

21

95

00

05

07

09

11

13

15

17

19

Great Recession

starts

Pandemic

starts

Total undocumented immigrants

Undocumented immigrants from Mexico

For the first time,the

total of immigrants from

other countries

sures the total number of

undocumented Mexicans

Millions of people

15

12

9

6

3

0

90

95

98

00

03

05

06

07

08

09

10

11

12

13

14

15

16

17

18

19

21

Great Recession

starts

Pandemic

starts

Total undocumented immigrants

Undocumented immigrants from Mexico

For the first time,the

total of immigrants from

other countries

sures the total number of

undocumented Mexicans

Millions of people

15

12

9

6

3

0

1990

95

98

00

03

05

06

07

08

09

10

11

12

13

14

15

16

17

18

19

21

Great Recession starts

Pandemic starts

Total undocumented immigrants

Undocumented immigrants from Mexico

For the first time,the

total of immigrants from

other countries

sures the total number of

undocumented Mexicans

Millions of people

15

12

9

6

3

0

1990

95

98

00

03

05

06

07

08

09

10

11

12

13

14

15

16

17

18

19

21

Great Recession starts

Pandemic starts

Since then, the undocumented immigrant population from Mexico has decreased every year. Between 2007 and 2021, the figure decreased by almost 3 million people, reaching 4.1 million in the latest available estimate. In 2017, for the first time, the sum of immigrants from other nationalities sured those coming from Mexico.

Why is Mexico losing prominence?

The decision to migrate implies that the person who is moving has weighed the benefits of moving against the benefits of staying. In the case of Mexico, various factors made it not as advantageous to migrate to the neighboring country. “The combination of the slowing population growth in Mexico, improvements in the Mexican economy, and the increased costs of trying to sneak in has slowed Mexican migration to the United States”, explained Jeffrey S. el, senior demographer at the Pew Center, to Univision Noticias.

The recession of 2008-2009 severely diminished job opportunities, and many immigrants returned to Mexico. During those years, many authorized Mexicans working in construction and housing lost their jobs, while many undocumented individuals failed to find employment in the country.

In turn, the birth rate dropped from seven children per woman in 1970 to just over two children in 2000. “By 2010, the number of Mexicans entering the workforce turning 16 or 17 years old, had dropped considerably. The Mexican labor market didn't have the pressure that it had before of trying to create jobs because of population growth. That push factor, meaning lots of excess labor in Mexico, diminished, while the pull factor in the US also diminished with the drop in unemployment”, emphasized the expert.

Fertility rate

in Mexico

Undocumented

immigrants in the US

from Mexico

Births per woman

Millions of people

7

6

5

4

3

2

1

0

9

6

3

0

6.8

4.1

1.8

1960

70

80

90

00

10

20

1960

70

80

90

00

10

20

Fertility rate

in Mexico

Undocumented

immigrants in the US

from Mexico

Births per woman

Millions of people

7

6

5

4

3

2

1

0

9

6

3

0

6.8

4.1

1.8

1960

70

80

90

00

10

20

1960

70

80

90

00

10

20

Fertility rate

in Mexico

Undocumented immigrants in the US from Mexico

Births per woman

Millions of people

9

6

3

0

7

6

5

4

3

2

1

0

6.8

4.1

1.8

1960

1970

1980

1990

2000

2010

2020

1960

1970

1980

1990

2000

2010

2020

Fertility rate

in Mexico

Undocumented immigrants in the US from Mexico

Births per woman

Millions of people

7

6

5

4

3

2

1

0

9

6

3

0

6.8

4.1

1.8

1960

1970

1980

1990

2000

2010

2020

1960

1970

1980

1990

2000

2010

2020

And furthermore, starting in 2010, in several points along the southwest border, the deportation process of immigrants began, instead of simply returning them. Since deportation is a legal procedure, those who are detained trying to re-enter clandestinely are subject to criminal penalties. “It made it a little more expensive in a sense to come into the US from Mexico especially”, highlighted el.

It is also likely that, as more Mexican migrants use legal channels to come to the United States, including the H-2A visa (for seasonal or temporary agricultural workers), fewer people feel inclined to migrate without permission or illegally, as stated by the Migration Policy Institute (MPI).

The undocumented immigrant population is not static. While new undocumented foreigners enter the United States, others leave the country due to lack of opportunities without legal documents. Additionally, they cannot bring their immediate family , such as spouses and children, and choose to return to be closer to relatives and friends. In turn, the MPI reports that over 4.7 million have been deported, and some have died.

The arrival of other nationalities

The reduction of the population of undocumented Mexican immigrants in recent years as given way to populations originating from Central America and Venezuela, driven by migratory movements that began in 2013 mainly due to poverty, violence, climate change, government corruption, and deep social inequalities.

Evolution of the undocumented immigrant population in the USA, according to their country of origin.

1990

95

00

05

10

15

21

Great Recession starts

6 million

5

4

Pandemic

starts

3

2

1

0

Mexico

1 million

0

Brazil

0

Canada

0

China

0

Colombia

0

Dominican R.

0

Ecuador

0

El Salvador

0

Guatemala

0

Haiti

0

Honduras

0

India

0

Korea

0

Filipinas

0

USSR (former)

0

Venezuela

1990

95

00

05

10

15

21

Note: the former Union of Soviet Socialist Republics (USSR) comprised Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan. The immigrant population from Korea includes North Korea and South Korea.

Evolution of the undocumented immigrant population in the USA, according to their country of origin.

1990

95

00

05

10

15

21

Great Recession starts

6 million

5

4

Pandemic

starts

3

2

1

0

Mexico

1 million

0

Brazil

0

Canada

0

China

0

Colombia

0

Dominican R.

0

Ecuador

0

El Salvador

0

Guatemala

0

Haiti

0

Honduras

0

India

0

Korea

0

Filipinas

0

USSR (former)

0

Venezuela

1990

95

00

05

10

15

21

Note: the former Union of Soviet Socialist Republics (USSR) comprised Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan. The immigrant population from Korea includes North Korea and South Korea.

Evolution of the undocumented immigrant population in the USA, according to their country of origin.

Great Recession starts

1990

95

00

05

10

15

21

6 million

5

4

Pandemic

starts

3

2

1

0

Mexico

1 million

0

Brazil

0

Canada

0

China

0

Colombia

0

Dominican R.

0

Ecuador

0

El Salvador

0

Guatemala

0

Haiti

0

Honduras

0

India

0

Korea

0

Filipinas

0

USSR (former)

0

Venezuela

1990

95

00

05

10

15

21

Note: the former Union of Soviet Socialist Republics (USSR) comprised Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan. The immigrant population from Korea includes North Korea and South Korea.

Evolution of the undocumented immigrant population in the USA, according to their country of origin.

1990

95

00

05

10

15

21

1990

95

00

05

10

15

21

1990

95

00

05

10

15

21

Great Recession starts

6 million

1 million

1 million

5

0

0

Colombia

Honduras

4

Pandemic

starts

1

1

3

0

Dominican R.

 

 

 

India

2

1

1

1

0

0

Ecuador

Korea

0

Mexico

1

1

1

0

0

0

Brazil

El Salvador

Filipinas

1

1

1

0

0

Canada

Guatemala

USSR (former)

1

1

1

0

0

0

China

Haiti

Venezuela

1990

95

00

05

10

15

21

1990

95

00

05

10

15

21

1990

95

00

05

10

15

21

Note: the former Union of Soviet Socialist Republics (USSR) comprised Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan. The immigrant population from Korea includes North Korea and South Korea.

Since early 2013, according to a warning issued by the UN following a report from experts at the University of California, there has been an unprecedented wave of migration primarily from Central America seeking asylum in the United States. In 2020, the caravans not only consist of Central Americans, but also migrants from the Caribbean, South America, North Africa, and the Middle East. The majority flee for the same reasons: poverty, hunger, violence, and the effects of climate change in search of asylum. However, none of these reasons qualify for asylum in the United States.

Where are they coming from?

Undocumented immigrant populations that increased in the United States during the last 5 available years (2017-2021), according to their country of origin.

Each point represents 1,000 people

Haiti

10,000

Canada

30,000

USSR (former)*

50,000

Venezuela

60,000

USA

Brazil

40,000

Honduras

125,000

Guatemala

100,000

India

200,000

El Salvador

50,000

(*) The former Union of Soviet Socialist Republics (USSR) comprised Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan.

Where are they coming from?

Undocumented immigrant populations that increased in the United States during the last 5 available years (2017-2021), according to their country of origin.

Each point represents 1,000 people

Haiti

10,000

Canada

30,000

USSR (former)*

50,000

Venezuela

60,000

USA

Brazil

40,000

Honduras

125,000

Guatemala

100,000

India

200,000

El Salvador

50,000

(*) The former Union of Soviet Socialist Republics (USSR) comprised Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan.

Where are they coming from?

Undocumented immigrant populations that increased in the United States during the last 5 available years (2017-2021), according to their country of origin.

Each point represents 1,000 people

Canada

30,000

Haiti

10,000

Venezuela

60,000

USA

USSR (former)*

50,000

Honduras

125,000

Brazil

40,000

Guatemala

100,000

India

200,000

El Salvador

50,000

(*) The former Union of Soviet Socialist Republics (USSR) comprised Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan.

Where are they coming from?

Undocumented immigrant populations that increased in the United States during the last 5 available years (2017-2021), according to their country of origin.

Canada

30,000

USSR (former)*

50,000

USA

Haiti

10,000

Guatemala

100,000

Venezuela

60,000

Each point represents 1,000 people

India

200,000

El Salvador

50,000

Honduras

125,000

Brazil

40,000

(*) The former Union of Soviet Socialist Republics (USSR) comprised Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan.

Unauthorized new immigrants rely on the of family and friends to establish themselves. In the case of the Northern Triangle (Honduras, Guatemala, and El Salvador), there have been significant populations in the United States for quite some time, around 25 years, emphasized el.

Unlike most of these undocumented individuals from the Northern Triangle, who cross the border illegally through Mexico, those coming from more distant regions to the United States often exceed the allowed time of stay established by their visas. In the case of India, that country is one of the main recipients of work authorizations and other entry permits to the country.

Where are they today?

California, Texas, Florida and New York are the states with the highest number of unauthorized individuals since 1990. In the case of Texas, the increase has been more than 1,000,000 since 1990.
Note: A value of 5,000 or 10,000 people has been assigned to those states with an immigrant population of less than 5,000 or 10,000, respectively, due to their low representativeness in the dataset.
After Mexico, the most common nationalities among undocumented immigrants are El Salvador, India, Guatemala, and Honduras. Salvadorans are the majority in the states of DC, Maryland, South Dakota, and Washington, while Indians are more concentrated than populations from other countries in New Hampshire, New Jersey, and Ohio.

Despite illegal border crossings reaching historic levels in the last two years following the pause caused by the pandemic, it is expected that this stable trend will continue, with no major increases in unauthorized immigration from Mexico, indicated el.

Sources: Pew Research Center; Instituto de Política Migratoria (Migration Policy Institute) and The World Bank.
Images: Associated Press and Getty Images.
Note: The Pew Research Center's estimation of the total population of undocumented immigrants is calculated using the residual method, whereby the total number of foreign-born individuals collected in the US Census is subtracted from the known number of legally documented immigrants in the country.
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Crédito: Univision