McDonough County, IL Population

The population of McDonough County is 27,743, according to the U.S. Census Bureau ACS estimates.
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Updated Jun 23, 2023
Overview
27,743
Total Population
33.7
Median age
51.83%
Female population %
93:100
Gender ratio (M:F)
20-24 years
Largest age group
47.4
Total dependency ratio
White
Largest racial group
819
Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

Age

McDonough County's population is young compared to the rest of the country:

  • The median age in McDonough County is 33.7, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
  • McDonough County's population under 18 was 17.33%, compared to the 22.51% nationwide.
  • McDonough County's elderly or the senior population (over 65 age) was 17.69% as compared to 16.04% nationwide.
  • Of the total population in McDonough County, 14.45% were under the age of 15, 31.51% aged 15 to 29, 36.35% aged 30 to 64, 14.61% aged 65 to 84, and 3.09% were 85 years of age and older.
The graph shows McDonough County's population by age group, with age group on x-axis and the respective age group's percent of the total population on y-axis
McDonough County, IL population by age group. The largest age group was 20-24 years with a poulation of 4,129 (14.88% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Read more about McDonough County, IL population by age ➔

Gender

There are 1,013 more females than males in McDonough County:

  • The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.83% females and 48.17% males in McDonough County, IL.
  • The McDonough County, IL gender ratio is 93:100 i.e. 93 men to 100 women (0.930).
  • For male population, the largest age group is 20-24 years with a population of 2,068.
  • For the female population, the largest age group is 20-24 years with a population of 2,061.
The grouped bar chart shows McDonough County, IL population by age and gender across 18 age groups, defined between the age of 0 and 85 and above. The female population is shown in pink color bar and male population is shown in blue color bar. Age group is plotted on x axis and population on y axis.
California population by gender and age. Largest age group (population): Male # 20-24 years (2,068) | Female # 20-24 years (2,061). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Read more about McDonough County, IL population by gender ➔

Race / Ethnicity

McDonough County's population has become increasingly diverse:

  • Racial distribution of McDonough County population: 88.44% are White, 5.24% are Black or African American, 0.05% are American Indian and Alaska Native, 2.54% are Asian, 0.04% are Native Hawaiian and other Pacific Islander, 0.52% are some other race and 3.17% are multiracial.
  • McDonough County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
  • By ethnicity, 819 is Hispanic or Latino (of any race), and 26,924 (97.05% of the total population) is Non-Hispanic.
  • The largest racial group in McDonough County is White with a population of 24,537 (88.44% of the total population).
The bar chart shows McDonough County, IL population by race, in percentage. The numbers shown are based on the American Community Survey respondents self identified race. The Hispanic and Latino population is spread across the races identified and not as a separate race category.
McDonough County, IL population by race. The largest racial group in McDonough County is White with a population of 24,537 (88.44% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Read more about McDonough County, IL population by race ➔

Year by year

McDonough County's population has already reached its peak and is showing a trend of decline:

  • The peak population was 33,286 in the year 2007
  • From 2000 to 2010, McDonough County's population decreased by 163 (0.50%), as compared to the national growth of 9.63%.
  • From 2010 to 2020, McDonough County's population decreased by 5,534 (16.96%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
  • Between the year 2000 and 2022, McDonough County's population was lowest in year 2021 at 26,848.
The graph shows McDonough County's population from 2000 to 2022, with years on x-axis and population on y-axis
McDonough County's population from 2000 to 2022. The estimated population at the end of 2022 was 26,861. Source: U.S. Census Bureau (Population Estimates Program)

Read more about McDonough County, IL population by year ➔

References

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McDonough County, IL Demographics

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