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Illinois
Detail from USA Census 2000

 


Estimate


Lower Bound


Upper Bound

PLACE OF BIRTH, CITIZENSHIP, AND YEAR OF ENTRY

      

Total population

12,097,508

*****

*****

Native

 10,577,628 10,532,689 10,622,567

Born in United States

 10,458,514 10,413,040 10,503,988

State of residence

 7,972,941 7,742,403 8,203,479

Different state

 2,485,573 2,266,445 2,704,701

Born in Puerto Rico, U.S. Island areas, or born abroad to
American parent(s)

 119,114 106,457 131,771

Foreign born

 1,519,880 1,474,941 1,564,819

Naturalized citizen

 611,776 583,460 640,092

Not a citizen

 908,104 865,197 951,011

Entered 1990 to 2000

 706,252 665,037 747,467

Entered before 1990

 813,628 779,445 847,811
       

REGION OF BIRTH OF FOREIGN BORN

      

Foreign-born population with region of birth reported

1,519,880

1,474,941

1,564,819

Europe

 415,469 388,858 442,080

Asia

 357,424 336,040 378,808

Africa

 34,031 23,372 44,690

Oceania

 2,698 1,139 4,257

Latin America

 691,051 657,079 725,023

Northern America

 19,207 14,782 23,632
       

LANGUAGE SPOKEN AT HOME

      

Population 5 years and over

11,234,306

11,220,476

11,248,136

English only

 9,067,617 9,012,662 9,122,572

Language other than English

 2,166,689 2,114,861 2,218,517

Speak English less than "very well"

 960,347 910,888 1,009,806

Spanish

 1,216,335 1,184,663 1,248,007

Speak English less than "very well"

 593,324 554,044 632,604

Other Indo-European languages

 643,959 603,838 684,080

Speak English less than "very well"

 247,699 222,048 273,350

Asian and Pacific Islander languages

 224,997 205,179 244,815

Speak English less than "very well"

 95,961 84,452 107,470

Other languages

 81,398 65,208 97,588

Speak English less than "very well"

 23,363 15,813 30,913
       

ANCESTRY (TOTAL REPORTED)

      

Total Population

12,097,508

*****

*****

Arab

 74,957 56,490 93,424

Czech

 135,177 120,312 150,042

Danish

 56,177 48,115 64,239

Dutch

 201,951 184,946 218,956

English

 960,379 912,981 1,007,777

French (except Basque)

 292,684 270,506 314,862

French Canadian

 46,802 39,047 54,557

German

 2,584,036 2,494,126 2,673,946

Greek

 90,148 76,377 103,919

Hungarian

 57,324 49,975 64,673

Irish

 1,605,119 1,562,006 1,648,232

Italian

 706,439 655,904 756,974

Lithuanian

 97,258 81,463 113,053

Norwegian

 156,077 140,808 171,346

Polish

 944,804 908,473 981,135

Portuguese

 5,534 3,655 7,413

Russian

 144,884 129,587 160,181

Scotch-Irish

 146,641 131,961 161,321

Scottish

 167,083 153,883 180,283

Slovak

 47,993 38,242 57,745

Subsaharan African

 43,362 34,774 51,950

Swedish

 309,120 285,114 333,126

Swiss

 37,253 28,653 45,853

Ukrainian

 45,080 35,114 55,046

United States or American

 515,633 471,337 559,929

Welsh

 60,806 49,307 72,305

West Indian (excluding Hispanic origin groups)

 32,021 22,123 41,919
       

The Census 2000 Supplementary Survey universe is limited to the household population and excludes the population living in institutions, college dormitories, and other group quarters. Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate is represented through the use of a confidence interval. The confidence interval computed here is a 90 percent confidence interval and can be interpreted roughly as providing 90 percent certainty that the true number falls between the lower and upper bounds.

School enrollment estimates from the Census 2000 Supplementary Survey will tend to be lower than similar estimates from the 2000 Census and 2000 Current Population Survey because the school enrollment estimates from the Census 2000 Supplementary Survey do not include individuals residing in group quarters, such as college dormitories.

1. An '*' entry in the lower and upper bound columns indicates that too few sample observations were available to compute a standard error and thus the lower and upper bounds. A statistical test is not appropriate.
2. An '**' entry in the lower and upper bound columns indicates that no sample observations were available to compute a standard error and thus the lower and upper bounds. A statistical test is not appropriate.
3. An '-' entry in the estimate column indicates that no sample observations were available to compute an estimate.
4. An '-' following a median estimate means the median falls in the lowest interval of an open-ended distribution.
5. An '+' following a median estimate means the median falls in the upper interval of an open-ended distribution.
6. An '***' entry in the lower and upper bound columns indicates that the median falls in the lowest interval or upper interval of an open-ended distribution. A statistical test is not appropriate.
7. An '*****' entry in the lower and upper bound columns indicates that the estimate is controlled. A statistical test is not appropriate.
8. An 'N' entry in the estimate, lower bound, and upper bound columns indicates that data for this geographic area cannot be displayed because the number of sample cases is too small.