Eureka, IL Population

Overview

5,569

Total Population

38.1

Median age

53.78%

Female population %

85.9:100

Gender ratio (M:F)

20-24 years

Largest age group

54.7

Total dependency ratio

White

Largest racial group

281

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Eureka is 38.1, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Eureka's population under 18 was 18.21%, compared to the 22.51% nationwide.
Eureka's elderly or the senior population (over 65 age) was 18.82% as compared to 16.04% nationwide.
Of the total population in Eureka, 16.56% were under the age of 15, 25.10% aged 15 to 29, 39.52% aged 30 to 64, 12.68% aged 65 to 84, and 6.14% were 85 years of age and older.

There are 421 more females than males in Eureka:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 53.78% females and 46.22% males in Eureka, IL.
The Eureka, IL gender ratio is 85.9:100 i.e. 85.9 men to 100 women (0.859).
For male population, the largest age group is 20-24 years with a population of 266.
For the female population, the largest age group is 20-24 years with a population of 432.

Eureka's population has become increasingly diverse:

Racial distribution of Eureka population: 91.70% are White, 1.45% are Black or African American, 0.27% are Asian, 4.09% are some other race and 2.48% are multiracial.
Eureka's racial breakdown clearly shows that there is an absolute majority of White population in the city.
By ethnicity, 281 is Hispanic or Latino (of any race), and 5,288 (94.95% of the total population) is Non-Hispanic.
The largest racial group in Eureka is White with a population of 5,107 (91.70% of the total population).

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

The peak population was 5,407 in the year 2009
From 2000 to 2010, Eureka's population increased by 322 (6.41%), as compared to the national growth of 9.63%.
From 2010 to 2020, Eureka's population decreased by 132 (2.47%), 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, Eureka's population was lowest in year 2001 at 4,999.