Eureka, Illinois Population 2021

5,247
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Eureka is a city located in Woodford County Illinois. With a 2020 population of 5,247, it is the 323rd largest city in Illinois and the 4645th largest city in the United States . Eureka is currently declining at a rate of -0.34% annually and its population has decreased by -0.91% since the most recent census, which recorded a population of 5,295 in 2010. Eureka reached it's highest population of 5,383 in 2011. Spanning over 3 miles, Eureka has a population density of 1,955 people per square mile.

The average household income in Eureka is $71,915 with a poverty rate of 15.64%. The median rental costs in recent years comes to $599 per month, and the median house value is $140,000. The median age in Eureka is 34.5 years, 33 years for males, and 36.9 years for females.

Eureka Demographics

According to the most recent ACS, the racial composition of Eureka was:

  • White: 94.59%
  • Two or more races: 2.51%
  • Other race: 1.54%
  • Black or African American: 1.17%
  • Asian: 0.19%
  • Native American: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Eureka, Illinois is 5,247 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 5,301.The last official US Census in 2010 recorded the population at 5,295.

Eureka, Illinois Population 2021

Population by Race

Race Population Percentage
White5,42194.59%
Two or More Races1442.51%
Some Other Race881.54%
Black or African American671.17%
Asian110.19%
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Eureka Population by Race

Eureka Population Pyramid $2021

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Eureka Median Age

34.5


Total

33


Male

36.9


Female

Eureka Adults

There are 4,567 adults, (936 of whom are seniors) in Eureka.

Eureka Age Dependency

57.8

Age Dependency Ratio

25.8

Old Age Dependency Ratio

32.1

Child Dependency Ratio

Eureka Sex Ratio

Female

2,911

50.79%

Male

2,820

49.21%

Eureka Population by Age

Eureka Renter vs Owner Occupied by Household Type

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Eureka Household Types

Type Owner Renter
Married74.8%25.2%
All64.2%35.8%
Male59.8%40.2%
Female56.3%43.8%
Non Family50%50%

64.2%

Rate of Home Ownership

Eureka Households and Families

Type Count Average Size Owned
All2,0392.564.2
Married1,0803.2174.8
Non Family6721.2950
Female1602.4956.3
Male1272.8159.8

3.04

Average Family Size

2.5

Average Household Size

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Eureka Households by Type

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Education Attained Count Percentage
Less Than 9th Grade621.72%
9th to 12th Grade2155.95%
High School Graduate1,06229.39%
Some College77721.51%
Associates Degree2085.76%
Bachelors Degree93325.82%
Graduate Degree3569.85%
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Eureka Educational Attainment by Sex (over 25)

Eureka Educational Attainment by Race

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Race Total High School Bachelors
White3,4203,2171,228
Hispanic1426835
Other Race583821
2+ Races474726
Black44

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 55.32%.

Eureka Educational Attainment by Race

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Name Average Male Female
Overall$35,307$44,406$27,166
Less Than 9th Grade$52,625$60,575$
High School Graduate$24,216$24,951$20,938
Some College$29,350$49,000$25,542
Bachelors Degree$41,731$51,705$34,297
Graduate Degree$62,500$77,198$60,139

$35,307

Average Earnings

$44,406

Average Male

$27,166

Average Female

Eureka Earnings by Educational Attainment

Eureka Language by Age

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Eureka Language

97.36% of Eureka residents speak only English, while 2.64% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.36% of the population.

Eureka Language

Eureka Poverty by Race

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Name Total In Poverty Poverty Rate
White4,76470414.78%
Multiple1327657.58%
Black331751.52%

15.64%

Overall Poverty Rate

17.53%

Male Poverty Rate

13.83%

Female Poverty Rate

Poverty in Eureka

The race most likely to be in poverty in Eureka is Multiple, with 57.58% below the poverty level.

The race least likely to be in poverty in Eureka is White, with 14.78% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.61%. Among those working part-time, it was 16.45%, and for those that did not work, the poverty rate was 34.80%.

Eureka Poverty

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Name Poverty
Some College24.50%
High School23.09%
Bachelors or Greater12.71%
Less Than 9th Grade7.33%

Eureka Poverty Rate by Education

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Rate Poverty
Female Unemployed57.78%
Male Employed11.18%
Female Employed9.83%
Male Unemployed0.00%

Eureka Poverty Rate by Employment Status and Sex

Eureka Income by Household Type

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Name Median Mean
Households$57,873$71,915
Families$61,761$85,539
Married Families$67,353-
Non Families$36,855$43,145
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Income by Household Type

Eureka Marital Status

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Marriage Rates

50.1%

Overall Marriage Rate

51.8%

Male Marriage Rate

48.4%

Female Marriage Rate

Eureka Married by Age and Sex

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Eureka Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Eureka Marital Status by Race

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Eureka Marital Status

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348

Number of Veterans

317

Male Veterans

31

Female Veterans

War Veterans
Vietnam115
Second Gulf War75
First Gulf War51
World War II37
Korea20

Eureka Veterans by War

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Age Group Veterans
35 to 54108
75+83
65 to 7482
55 to 6470
18 to 345

Eureka Veterans by Age

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Name Veterans % of Total
White3457.89%
Hispanic116.71%
Black34.48%

Eureka Veterans by Race

Eureka Veterans by Education

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19.54%

Veteran Poverty Rate

8.61%

Veteran Disability Rate

Eureka Veterans by Education

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63.8%

Labor Force Participation

60.5%

Employment Rate

5.2%

Unemployment Rate

Eureka Employment by Age

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Eureka Employment by Race

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Eureka Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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80.27%

Born in Eureka

98.66%

Native Born

1.34%

Foreign Born

0.72%

Non Citizen

0.63%

Naturalized

Place of Birth

98.66% of Eureka residents were born in the United States, with 80.27% having been born in Illinois. 0.72% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Eureka Place of Birth

Year Population Growth Annual Growth Rate
20215,247-18-0.34%
20205,265-18-0.34%
20195,283-18-0.34%
20185,301-25-0.47%
20175,326-34-0.63%
20165,360290.54%
20155,331-30-0.56%
20145,361-14-0.26%
20135,37510.02%
20125,374-9-0.17%
20115,383400.75%
20105,3434720.93%
20004,8714360.94%
19904,4351290.30%
19804,3061,2783.58%
19703,0284901.78%
19602,5380.00%

Eureka Population by Year