E.g., 06/22/2021
E.g., 06/22/2021
State Demographics Data - IL
 

Illinois

Demographics & Social
2019
2000
1990
Demographics

Note: The term "foreign born" refers to people residing in the United States at the time of the population survey who were not U.S. citizens at birth. The foreign-born population includes naturalized U.S. citizens, lawful permanent immigrants (or green-card holders), refugees and asylees, certain legal nonimmigrants (including those on student, work, or some other temporary visas), and persons residing in the country without authorization.

Foreign Born
Number 1,766,492
% Foreign Born 13.9%
Population Change over Time  
% change: 2000-2019 15.5%
% change: 1990-2000 60.6%
Race (%)  
One race 98.2%
White
50.0%
Black or African American
4.7%
American Indian and Alaska Native
0.4%
Asian
27.1%
Native Hawaiian and other Pacific Islander
0.1%
Other race
16.0%
Two or more races 1.8%
Latino Origin (of any race)  
Number 728,975
% Latino 41.3%
Age Groups (%)  
Under 5 0.5%
5-17 3.4%
18-64 78.1%
65 and older 18.0%
Median Age

Note: 1) Data for Alaska, Maine, Mississippi, Montana, North Dakota, South Dakota, Vermont, West Virginia, and Wyoming are from the Census Bureau’s pooled 2015-2019 American Community Survey (ACS). Data for the United States overall and for the remaining states are from the 2019 ACS. 2) The letter N indicates that a number could not be provided by the Census Bureau because the number of sample cases was too small for this state.

46.6
Gender (% female) 51.0%
Marital Status (15 and older) (%)  
Never married 21.6%
Married 63.1%
Separated, divorced, or widowed 15.3%

Note: The term "U.S. born" refers to people residing in the United States who were U.S. citizens in one of three categories: people born in one of the 50 states or the District of Columbia; people born in U.S. Insular Areas such as Puerto Rico or Guam; or people who were born abroad to at least one U.S. citizen parent.

U.S. Born
Number 10,905,329
% Foreign Born  
Population Change over Time  
% change: 2000-2011 0.1%
% change: 1990-2000 3.9%
Race (%)  
One race 97.1%
White 74.8%
Black or African American 15.7%
American Indian and Alaska Native 0.2%
Asian 2.2%
Native Hawaiian and other Pacific Islander 0.0%
Other race 4.1%
Two or more races 2.9%
Latino Origin (of any race)  
Number 1,487,325
% Latino 13.6%
Age Groups (%)  
Under 5 6.7%
5-17 18.5%
18-64 59.0%
65 and older 15.8%
Median Age 36.3
Gender (% female) 50.9%
Marital Status (15 and older) (%)  
Never married 38.6%
Married 43.9%
Separated, divorced, or widowed 17.6%
Foreign Born
Number 1,529,058
% Foreign Born 12.3%
Population Change over Time  
% change: 2000-2011  
 
Race (%)  
Latino Origin (of any race)  
Age Groups (%)  
Marital Status (15 and older) (%)  
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U.S. Born
Number 10,890,235
Population Change over Time  
% change: 2000-2011  
1990-2000  
Race (%)  
Latino Origin (of any race)  
Age Groups (%)  
Marital Status (15 and older) (%)  
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Foreign Born
Number 952,272
% Foreign Born 8.3%
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
U.S. Born
Number 10,478,330
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
Foreign Born
Foreign Born
Foreign Born
Place of Birth Number
Region of Birth (excluding born at sea)

Note: For 1990, 2000, and current ACS year, the total for the region of birth of the foreign born is different from the total foreign born. This is because the 1990 total excludes those who did not report a country of birth and those born at sea, while the 2000 and the current ACS year totals exclude those born at sea.

1,766,492
Born in Africa 77,997
Born in Asia 557,641
Born in Europe 355,254
Born in Latin America (South America, Central America, Mexico, and the Caribbean) 754,749
Born in Northern America (Canada, Bermuda, Greenland, and St. Pierre and Miquelon) 17,956
Born in Oceania 2,895
Top 3 Countries of Birth

Note: These are the largest countries of birth reported by the Census Bureau. Some countries are only listed as part of a larger geographic region. For example, those born in Somalia are included only among those born in Eastern Africa. Therefore, a few states may have larger populations of foreign-born persons born in countries not listed individually in census data. For each of the three years, countries of birth reflect geographic boundaries as of that year.

 
Country #1
Country #2
Country #3
Detailed Region/Country of Birth

Note: These are the largest countries of birth reported by the Census Bureau. Some countries are only listed as part of a larger geographic region. For example, those born in Somalia are included only among those born in Eastern Africa. Therefore, a few states may have larger populations of foreign-born persons born in countries not listed individually in census data. For each of the three years, countries of birth reflect geographic boundaries as of that year.

1,766,492
Europe 355,254
Northern Europe 29,794
United Kingdom
18,759
Ireland
8,115
Other Northern Europe
2,920
Western Europe 31,719
France
4,870
Germany
19,377
Other Western Europe
7,472
Southern Europe 34,870
Italy
19,273
Portugal
689
Other Southern Europe
14,908
Eastern Europe 257,209
Poland
118,051
Russia
17,403
Other Eastern Europe
121,755
Other Europe (no country specified) 1,662
Asia 557,641
Eastern Asia 154,518
China
96,501

China, excluding Taiwan

88,535

Taiwan

7,966
Japan
14,413
Korea
40,748
Other Eastern Asia
2,856
South Central Asia 207,979
India
153,957
Iran
6,092
Other South Central Asia
47,930
Southeastern Asia 132,558
Philippines
87,608
Vietnam
21,254
Other Southeastern Asia
23,696
Western Asia 53,827
Israel
5,423
Lebanon
2,571
Other Western Asia
45,833
Other Asia (no country specified) 8,759
Africa 77,997
Eastern Africa 14,243
Northern Africa
14,585
Western Africa
31,710
Middle and Southern Africa
10,392
Other Africa (no country specified)
7,067
Oceania 2,895
Australia and New Zealand subregion 2,314
Oceania (no country specified) 581
Americas 772,705
Latin America 754,749
Caribbean
24,439

Cuba

6,990

Jamaica

7,610

Other Caribbean

9,839
Central America
664,206

Mexico

601,682

El Salvador

13,684

Other Central America

48,840
South America
66,104

Brazil

7,144

Colombia

14,038

Other South America

44,922
Northern America 17,956
Canada
17,580
Other Northern America
376
Period of Entry into U.S.  
Before 1990 557,187
1990-1999 432,497
2000-2009 417,356
Since 2010 359,452
%
Region of Birth (excluding born at the sea)* 100%
Born in Africa 4.4%
Born in Asia 31.6%
Born in Europe 20.1%
Born in Latin America (South America, Central America, Mexico, and the Caribbean) 42.7%
Born in Northern America (Canada, Bermuda, Greenland, and St. Pierre and Miquelon) 1.0%
Born in Oceania 0.2%
Top 3 Countries of Birth*  
Country #1
Country #2
Country #3
Detailed Region/Country of Birth* 100%
Europe 20.1%
Northern Europe 1.7%
United Kingdom 1.1%
Ireland 0.5%
Other Northern Europe 0.2%
Western Europe 1.8%
France 0.3%
Germany 1.1%
Other Western Europe 0.4%
Southern Europe 2.0%
Italy 1.1%
Portugal N
Other Southern Europe 0.8%
Eastern Europe 14.6%
Poland 6.7%
Russia 1.0%
Other Eastern Europe 6.9%
Other Europe (no country specified) 0.1%
Asia 31.6%
Eastern Asia 8.7%
China 5.5%
China, excluding Taiwan 5.0%
Taiwan 0.5%
Japan 0.8%
Korea 2.3%
Other Eastern Asia 0.2%
South Central Asia 11.8%
India 8.7%
Iran 0.3%
Other South Central Asia 2.7%
Southeastern Asia 7.5%
Philippines 5.0%
Vietnam 1.2%
Other Southeastern Asia 1.3%
Western Asia 3.0%
Israel 0.3%
Lebanon 0.1%
Other Western Asia 2.6%
Other Asia (no country specified) 0.5%
Africa 4.4%
Eastern Africa 0.8%
Northern Africa 0.8%
Western Africa 1.8%
Middle and Southern Africa 0.6%
Other Africa (no country specified) 0.4%
Oceania 0.2%
Australia and New Zealand subregion 0.1%
Oceania (no country specified) N
Americas 43.7%
Latin America 42.7%
Caribbean 1.4%
Cuba 0.4%
Jamaica 0.4%
Other Caribbean 0.6%
Central America 37.6%
Mexico 34.1%
El Salvador 0.8%
Other Central America 2.8%
South America 3.7%
Brazil 0.4%
Colombia 0.8%
Other South America 2.5%
Northern America 1.0%
Canada 1.0%
Other Northern America N
Period of Entry into U.S.  
Before 1980 31.5%
1980-1989 24.5%
1990-1999 23.6%
Since 2000 20.3%
Number
Region of Birth (excluding born at the sea)* 1,529,058
Born in Africa 26,158
Born in Asia 359,812
Born in Europe 389,928
Born in Latin America (South America, Central America, Mexico, and the Caribbean) 731,397
Born in Northern America (Canada, Bermuda, Greenland, and St. Pierre and Miquelon) 19,210
Cat28 2,553
Top 3 Countries of Birth*  
Country #1
Country #2
Country #3
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
%
Region of birth 100%
Born in Africa 1.7%
Born in Asia 23.5%
Born in Europe 25.5%
Born in Latin America 47.8%
Born in Northern America 1.3%
Born in Oceania 0.2%
Top 3 Countries of Birth*  
Country #1
Country #2
Country #3
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
Number
Region of Birth (excluding born at the sea)* 922,086
Born in Africa 12,388
Born in Asia 225,339
Born in Europe 307,706
Born in Latin America (South America, Central America, Mexico, and the Caribbean) 358,619
Born in Northern America (Canada, Bermuda, Greenland, and St. Pierre and Miquelon) 16,215
Cat21 1,819
Top 3 Countries of Birth*  
Country #1
Country #2
Country #3
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
%
Region of birth 100%
Born in Africa 1.3%
Born in Asia 24.4%
Born in Europe 33.4%
Born in Latin America 38.9%
Born in Northern America 1.8%
Born in Oceania 0.2%
Top 3 Countries of Birth*  
Country #1
Country #2
Country #3
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
Foreign Born
Foreign Born
Foreign Born
Naturalization Number
Foreign Born by U.S. Citizenship Status 1,766,492
Naturalized citizens 952,604
Noncitizens 813,888
Naturalized Citizens by Period of Naturalization 952,604
Before 1990 197,533
1990-1999 191,674
2000-2009 290,318
2010-2014 128,259
Since 2015 144,820
%
Foreign Born by U.S. Citizenship Status 100%
Naturalized citizens 53.9%
Noncitizens 46.1%
Naturalized Citizens by Period of Naturalization 100%
Before 1980 20.7%
1980-1989 20.1%
1990-1999 30.5%
2000-2009 13.5%
Since 2010 15.2%
Number
Foreign Born by U.S. Citizenship Status 1,529,058
Naturalized citizens 603,521
Noncitizens 925,537
   
   
   
   
   
   
%
Foreign Born by U.S. Citizenship Status 100%
Naturalized citizens 39.5%
Noncitizens 60.5%
   
   
   
   
   
   
Number
Foreign Born by U.S. Citizenship Status 952,272
Naturalized citizens 423,665
Noncitizens 528,607
   
   
   
   
   
   
%
Foreign Born by U.S. Citizenship Status 100%
Naturalized citizens 44.5%
Noncitizens 55.5%
   
   
   
   
   
   
Fertility Foreign Born
Female Population (ages 15-50) 493,628
Women (ages 15-50) who gave birth in the last 12 months 26,503
% married among women who gave birth
84.6%
% unmarried (never married, divorced, or widowed) among women who gave birth
15.4%
U.S. Born
Female Population (ages 15-50) 2,502,493
Women (ages 15-50) who gave birth in the last 12 months 120,534
% married among women who gave birth 62.2%
% unmarried (never married, divorced, or widowed) among women who gave birth 37.8%
Foreign Born
   
   
   
   
U.S. Born
   
   
   
   
Foreign Born
   
   
   
   
U.S. Born
   
   
   
   
Household and Family Size

Note: Data for Alaska, Maine, Mississippi, Montana, North Dakota, South Dakota, Vermont, West Virginia, and Wyoming are from the U.S Census Bureau’s pooled 2015-2019 American Community Survey (ACS). Data for the United States overall and for the remaining states are from the 2019 ACS. 2) The letter N indicates that a number could not be provided by the Census Bureau because the number of sample cases was too small for this state.

Foreign Born
Average household size 3.13
Average family size 3.69
U.S. Born
Average household size 2.43
Average family size 3.13
Foreign Born
   
   
U.S. Born
   
   
Foreign Born
   
   
U.S. Born
   
   
 
Population
Population
Population
Children under 18 Number
Children with Foreign- and Native-Born Parents

Note: Refers only to children under age 18 who resided with at least one parent. Beginning with the 2014 ACS, the Census Bureau has excluded children of same-sex married couples from the total number of children. This means that the total number of children may be smaller than in previous years.

 
Children under age 18 with 2,688,141
Only native parent(s)
1,986,091
One or more foreign-born parents
702,050

Child is native

644,500

Child is foreign born

57,550
Children under age 6 with 855,688
Only native parent(s)
646,481
One or more foreign-born parents
209,207

Child is native

198,363

Child is foreign born

10,844
Children between ages 6 and 17 with 1,832,453
Only native parent(s)
1,339,610
One or more foreign-born parents
492,843

Child is native

446,137

Child is foreign born

46,706
Children in Low-Income Families

Note: Refers only to children under age 18 who resided with at least one parent. Beginning with the 2014 American Community Survey, the Census Bureau has excluded children of same-sex married couples from the total number of children. This means that the total number of children may be smaller than in previous years. The term "low-income families" refers to families with annual incomes below 200 percent of the federal poverty threshold.

927,311
Only native parents 627,210
One or more foreign-born parents 300,101
%
Children with Foreign- and Native-Born Parents*  
Children under age 18 with 100%
Only native parent(s) 73.9%
One or more foreign-born parents 26.1%
Child is native 24.0%
Child is foreign born 2.1%
Children under age 6 with 100%
Only native parent(s) 75.6%
One or more foreign-born parents 24.4%
Child is native 23.2%
Child is foreign born 1.3%
Children between ages 6 and 17 with 100%
Only native parent(s) 73.1%
One or more foreign-born parents 26.9%
Child is native 24.3%
Child is foreign born 2.5%
Children in Low-Income Families* 100%
Only native parents 67.6%
One or more foreign-born parents 32.4%
Number
Children with Foreign- and Native-Born Parents  
Children under age 18 with 3,082,301
Only native parent(s) 2,443,090
One or more foreign-born parents 639,211
Child is native 505,026
Child is foreign born 134,185
Children under age 6 with 1,007,235
Only native parent(s) 777,704
One or more foreign-born parents 229,531
Child is native 209,038
Child is foreign born 20,493
Children between ages 6 and 17 with 2,075,066
Only native parent(s) 1,665,386
One or more foreign-born parents 409,680
Child is native 295,988
Child is foreign born 113,692
Children in Low-Income Families* 974,133
Only native parents 712,151
One or more foreign-born parents 261,982
%
Children with Foreign- and Native-Born Parents  
Children under age 18 with 100%
Only native parent(s) 79.3%
One or more foreign-born parents 20.7%
Child is native 16.4%
Child is foreign born 4.4%
Children under age 6 with 100%
Only native parent(s) 77.2%
One or more foreign-born parents 22.8%
Child is native 20.8%
Child is foreign born 2.0%
Children between ages 6 and 17 with 100%
Only native parent(s) 80.3%
One or more foreign-born parents 19.7%
Child is native 14.3%
Child is foreign born 5.5%
Children in Low-Income Families* 100%
Only native parents 73.1%
One or more foreign-born parents 26.9%
Number
Children with Foreign- and Native-Born Parents  
Children under age 18 with 2,833,596
Only native parent(s) 2,425,083
One or more foreign-born parents 408,513
Child is native 331,632
Child is foreign born 76,881
Children under age 6 with 981,387
Only native parent(s) 841,410
One or more foreign-born parents 139,977
Child is native 125,733
Child is foreign born 14,244
Children between ages 6 and 17 with 1,852,209
Only native parent(s) 1,583,673
One or more foreign-born parents 268,536
Child is native 205,899
Child is foreign born 62,637
Children in Low-Income Families* 971,085
Only native parents 808,575
One or more foreign-born parents 162,510
%
Children with Foreign- and Native-Born Parents  
Children under age 18 with 100%
Only native parent(s) 85.6%
One or more foreign-born parents 14.4%
Child is native 11.7%
Child is foreign born 2.7%
Children under age 6 with 100%
Only native parent(s) 85.7%
One or more foreign-born parents 14.3%
Child is native 12.8%
Child is foreign born 1.5%
Children between ages 6 and 17 with 100%
Only native parent(s) 85.5%
One or more foreign-born parents 14.5%
Child is native 11.1%
Child is foreign born 3.4%
Children in Low-Income Families* 100%
Only native parents 83.3%
One or more foreign-born parents 16.7%

Sources: Migration Policy Institute tabulations of the U.S. Census Bureau American Community Survey (ACS) and Decennial Census. Unless stated otherwise, 2019 data are from the one-year ACS file. For information about ACS definitions, methodology, sampling error, and nonsampling error, click here. Estimates from 1990 and 2000 Decennial Census data as well as ACS microdata are from Steven Ruggles, Sarah Flood, Ronald Goeken, Josiah Grover, Erin Meyer, Jose Pacas and Matthew Sobek. IPUMS USA: Version 10.0 [dataset]. Minneapolis, MN: IPUMS, 2020. https://doi.org/10.18128/D010.V10.0.

Definitions

  • The term "foreign born" refers to people residing in the United States at the time of the population survey who were not U.S. citizens at birth. The foreign-born population includes naturalized U.S. citizens, lawful permanent immigrants (or green-card holders), refugees and asylees, certain legal nonimmigrants (including those on student, work, or some other temporary visas), and persons residing in the country without authorization.
  • The term "U.S. born" refers to people residing in the United States who were U.S. citizens in one of three categories: people born in one of the 50 states or the District of Columbia; people born in U.S. Insular Areas such as Puerto Rico or Guam; or people who were born abroad to at least one U.S. citizen parent.
  • The term "low-income families" refers to families with annual incomes below 200 percent of the federal poverty threshold.

Data-related notes

  • The letter N indicates that an estimate could not be provided by the Census Bureau because the number of sample cases was too small for this state.
  • For “Median Age” and “Household Size”: Data for Alaska, Maine, Mississippi, Montana, North Dakota, South Dakota, Vermont, West Virginia, and Wyoming are from the U.S. Census Bureau's pooled 2015-2019 American Community Survey (ACS). Data for the United States overall and for the remaining states are from the 2019 ACS.
  • Region of birth: For 1990, 2000, and current ACS year, the total for the region of birth of the foreign born is different from the total foreign born. This is because the 1990 total excludes those who did not report a country of birth and those born at sea, while the 2000 census and the current ACS year totals exclude those born at sea.
  • Countries of birth: These are the largest countries of birth reported by the Census Bureau. Some countries are only listed as part of a larger geographic region. For example, those born in Somalia are included only among those born in Eastern Africa. Therefore, a few states may have larger populations of foreign-born persons born in countries not listed individually in census data. For each of the three years, countries of birth reflect geographic boundaries as of that year.
  • Beginning with the 2014 ACS, the Census Bureau has excluding children of same-sex married couples from the total number of children. This means that the total number of children may be smaller than in previous years.
  • Children of immigrants: Refers only to children under age 18 who resided with at least one parent. These figures do not include children under age 18 who reside in a home with no parents.