Eureka township Population

2010–2026

4,359

2026 projection

3.7% since 2020 (increase)

01K2K3K4K5K201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

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Population by year

Population estimates for Eureka township. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20264,359+50.11%
20254,354+50.11%
20244,349+420.98%
20234,307+340.80%
20224,273+240.56%
20214,249+461.09%
20204,203+1924.79%
20194,011-130.32%
20184,024+50.12%
20174,019+290.73%

Showing 10 of 17 years.

Eureka township Demographics

36.7median age

Median age

Female41.3 yrs
Male33.4 yrs

Adults

3,444
753 seniors · 22%2,691 other adults

Sex

Female 43.2% · 1,852Male 56.8% · 2,431

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 43 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Eureka township Income

$77,266median household income

Median household income

$77,266

Half of households earn more, half earn less

Median earnings

$44,779

Typical yearly pay for a worker 25 or older.

Poverty rate

5.7%

About 1 in 18 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Eureka township Marital Status

68% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married68%66%70%
Never married23%30%13%
Divorced6%4%8%
Widowed3%<1%6%
Separated1%0%3%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201