Marshall County, IL Population

Overview

11,781

Total Population

46.5

Median age

50.13%

Female population %

99.5:100

Gender ratio (M:F)

60-64 years

Largest age group

68.0

Total dependency ratio

White

Largest racial group

354

Hispanic population

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

TABLE OF CONTENTS

Age

Marshall County's population is old compared to the rest of the country:

The median age in Marshall County is 46.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Marshall County's population under 18 was 20.67%, compared to the 22.51% nationwide.
Marshall County's elderly or the senior population (over 65 age) was 23.25% as compared to 16.04% nationwide.
Of the total population in Marshall County, 17.23% were under the age of 15, 15.44% aged 15 to 29, 44.08% aged 30 to 64, 19.92% aged 65 to 84, and 3.33% were 85 years of age and older.

There are 31 more females than males in Marshall County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.13% females and 49.87% males in Marshall County, IL.
The Marshall County, IL gender ratio is 99.5:100 i.e. 99.5 men to 100 women (0.995).
For male population, the largest age group is 60-64 years with a population of 498.
For the female population, the largest age group is 55-59 years with a population of 476.

Marshall County's population has become increasingly diverse:

Racial distribution of Marshall County population: 95.33% are White, 0.70% are Black or African American, 0.06% are American Indian and Alaska Native, 0.35% are Asian, 1.04% are some other race and 2.53% are multiracial.
Marshall County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 354 is Hispanic or Latino (of any race), and 11,427 (97% of the total population) is Non-Hispanic.
The largest racial group in Marshall County is White with a population of 11,231 (95.33% of the total population).

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

The peak population was 13,120 in the year 2000
From 2000 to 2010, Marshall County's population decreased by 483 (3.68%), as compared to the national growth of 9.63%.
From 2010 to 2020, Marshall County's population decreased by 931 (7.37%), 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, Marshall County's population was lowest in year 2019 at 11,463.