The population count of Illinois was 12,868,747 in 2014.

Population

Population Change

Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API - Notes:

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Demographics and Population Datasets Involving Illinois

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    Illinois Population, 2000-2009

    data.illinois.gov | Last Updated 2014-08-11T20:58:24.000Z

    Data provided by the IL Center for Health Statistics.

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    Illinois Population, 1991-1999

    data.illinois.gov | Last Updated 2014-08-11T20:55:37.000Z

    Data provided by the IL Center for Health Statistics.

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    IDOL State Construction Minority and Female Building Trades Annual Report

    data.illinois.gov | Last Updated 2016-03-04T17:48:23.000Z

    All construction apprenticeship programs in Illinois are required to submit a report to the Illinois Department of Labor concerning the race, gender, ethnicity and national origin of apprentices participating in their programs.

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    IDPH Population Projections For Illinois Counties 2010 To 2025

    data.illinois.gov | Last Updated 2015-06-29T15:44:15.000Z

    Introduction This report presents projections of population from 2015 to 2025 by age and sex for Illinois, Chicago and Illinois counties produced for the Certificate of Need (CON) Program. As actual future population trends are unknown, the projected numbers should not be considered a precise prediction of the future population; rather, these projections, calculated under a specific set of assumptions, indicate the levels of population that would result if our assumptions about each population component (births, deaths and net migration) hold true. The assumptions used in this report, and the details presented below, generally assume a continuation of current trends. Methodology These projections were produced using a demographic cohort-component projection model. In this model, each component of population change – birth, death and net migration – is projected separately for each five-year birth cohort and sex. The cohort – component method employs the following basic demographic balancing equation: P1 = P0 + B – D + NM Where: P1 = Population at the end of the period; P0 = Population at the beginning of the period; B = Resident births during the period; D = Resident deaths during the period; and NM = Net migration (Inmigration – Outmigration) during the period. The model roughly works as follows: for every five-year projection period, the base population, disaggregated by five-year age groups and sex, is “survived” to the next five-year period by applying the appropriate survival rates for each age and sex group; next, net migrants by age and sex are added to the survived population. The population under 5 years of age is generated by applying age specific birth rates to the survived females in childbearing age (15 to 49 years). Base Population These projections began with the July 1, 2010 population estimates by age and sex produced by the U.S. Census Bureau. The most recent census population of April 1, 2010 was the base for July 1, 2010 population estimates. Special Populations In 19 counties, the college dormitory population or adult inmates in correctional facilities accounted for 5 percent or more of the total population of the county; these counties were considered as special counties. There were six college dorm counties (Champaign, Coles, DeKalb, Jackson, McDonough and McLean) and 13 correctional facilities counties (Bond, Brown, Crawford, Fayette, Fulton, Jefferson, Johnson, Lawrence, Lee, Logan, Montgomery, Perry and Randolph) that qualified as special counties. When projecting the population, these special populations were first subtracted from the base populations for each special county; then they were added back to the projected population to produce the total population projections by age and sex. The base special population by age and sex from the 2010 population census was used for this purpose with the assumption that this population will remain the same throughout each projection period. Mortality Future deaths were projected by applying age and sex specific survival rates to each age and sex specific base population. The assumptions on survival rates were developed on the basis of trends of mortality rates in the individual life tables constructed for each level of geography for 1989-1991, 1999-2001 and 2009-2011. The application of five-year survival rates provides a projection of the number of persons from the initial population expected to be alive in five years. Resident deaths data by age and sex from 1989 to 2011 were provided by the Illinois Center for Health Statistics (ICHS), Illinois Department of Public Health. Fertility Total fertility rates (TFRs) were first computed for each county. For most counties, the projected 2015 TFRs were computed as the average of the 2000 and 2010 TFRs. 2010 or 2015 rates were retained for 2020 projections, depending on the birth trend of each county. The age-specific birth rates (ASBR) were next computed for each county by multiplying the 2010 ASBR by each project

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    Illinois Population Changes By Decade, 1980-2010

    data.illinois.gov | Last Updated 2014-08-11T20:53:10.000Z

    Data provided by the IL Center for Health Statistics

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    10to12 Iquery Flu Data

    data.illinois.gov | Last Updated 2013-11-06T15:04:14.000Z

    The reported number of illnesses caused by strains of the Influenza virus that required the case to be in the Intensive Care Unit (ICU) during a hospital stay. Influenza, commonly called "the flu," is an infection of the respiratory tract caused by the influenza virus. Compared with most viral respiratory infections, such as the common cold, influenza infection often causes a more severe illness. Typical influenza illness includes fever (usually 100 degrees F to 103 degrees F in adults and often even higher in children) and respiratory symptoms, such as cough, sore throat, runny or stuffy nose, as well as headache, muscle aches and extreme fatigue. Although nausea, vomiting and diarrhea can sometimes accompany influenza infection, especially in children, these symptoms are rarely the primary symptoms. The term "stomach flu" is a misnomer that is sometimes used to describe gastrointestinal illnesses caused by organisms other than influenza viruses. During most flu seasons, which typically run from November to April, between 10 percent and 20 percent of the population is infected with influenza viruses. Most people who get the flu recover completely in 1 to 2 weeks, but some people develop serious and potentially life-threatening medical complications, such as pneumonia. Flu-related complications can occur at any age, but the elderly and people with chronic health problems are much more likely to develop serious complications after influenza infection than are young, healthier people. Since 2010, IDPH has collected information about influenza cases that required Intensive Care Unit (ICU) hospitalization as a way to measure the severity of disease.

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    IDPH STD Illinois By Race Ethnicity

    data.illinois.gov | Last Updated 2016-06-10T18:44:08.000Z

    Illinois 2000-2015 STD counts and rates (per 100,000 population) by race/ethnicity. See attachment for metadata and censoring details under the "About" link. Null values in dataset reflect censored data. {AIAN: American Indian, Alaskan Native, non-Hispanic; Asian: Asian, non-Hispanic; Black: Black or African American, non-Hispanic; Hisp: Hispanc (of any race); MultiRace: more than one race was reported, non-Hispanic (Chlamydia and gonorrhea use multiple races in reporting, syphilis cases use single race reporting (i.e., MultiRace values may be zero for syphilis cases)); NHPI: Native Hawaiian or Other Pacific Islander (Chlamydia and gonorrhea cases reports distinguishes NHPI from Asians, whereas syphilis cases group Asians, native Hawaiians and other Pacific Islanders as “Asian” (i.e., NHPI cases in syphilis case reports may display zero cases; these cases would have been reported under Asian)); White: White or Caucasian, non-Hispanic; Other: Other race, non-Hispanic; Unk: Unknown race, ethnicity.} Data Source: Illinois Department of Public Health STD Program.

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    05to09 Iquery Hep Cchronic Data

    data.illinois.gov | Last Updated 2013-11-06T15:00:40.000Z

    Hepatitis C virus (HCV) infection is the most common chronic bloodborne infection in the United States; approximately 3.2 million persons are chronically infected. HCV is most efficiently transmitted through large or repeated percutaneous exposure to infected blood (e.g., through transfusion of blood from unscreened donors or through use of injecting drugs). Although much less frequent, occupational, perinatal, and sexual exposures also can result in transmission of HCV. Because the clinical characteristics are similar for all types of acute viral hepatitis, the specific viral cause of illness cannot be determined solely on the basis of signs, symptoms, history, or current risk factors, but must be verified by specific serologic testing. Persons with chronic hepatitis B virus (HBV) infection may be asymptomatic. They may have no evidence of liver disease or may have a spectrum of disease ranging from chronic hepatitis to cirrhosis or liver cancer.

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    05to12 Iquery Salm Data

    data.illinois.gov | Last Updated 2013-11-06T15:02:36.000Z

    Salmonellosis: A case of salmonellosis is caused by one of the numerous serotypes of Salmonella bacteria, and is most often manifested by diarrhea, abdominal pain, nausea, and sometimes vomiting. However, asymptomatic cases may occur. A case of salmonellosis may be considered confirmed or probable. A confirmed case has been proven by laboratory testing, while a probable case is symptomatic and can be epidemiologically linked to a confirmed case. Both of these types of cases are counted in the reported case counts.

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    10to12 Iquery Hep Cchronic Data

    data.illinois.gov | Last Updated 2013-11-06T15:00:26.000Z

    Hepatitis C virus (HCV) infection is the most common chronic bloodborne infection in the United States; approximately 3.2 million persons are chronically infected. HCV is most efficiently transmitted through large or repeated percutaneous exposure to infected blood (e.g., through transfusion of blood from unscreened donors or through use of injecting drugs). Although much less frequent, occupational, perinatal, and sexual exposures also can result in transmission of HCV. Because the clinical characteristics are similar for all types of acute viral hepatitis, the specific viral cause of illness cannot be determined solely on the basis of signs, symptoms, history, or current risk factors, but must be verified by specific serologic testing. Persons with chronic hepatitis B virus (HBV) infection may be asymptomatic. They may have no evidence of liver disease or may have a spectrum of disease ranging from chronic hepatitis to cirrhosis or liver cancer.