Eureka Population

1880–2026

2,226

2026 projection

3.1% since 2020 (decrease)

01K2K3K4K5K18801900192019401960198020002020

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

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Eureka. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20262,226-130.58%
20252,239-90.40%
20242,248-190.84%
20232,267-40.18%
20222,271-60.26%
20212,277-200.87%
20202,297-572.42%
20192,354-50.21%
20182,359-251.05%
20172,384-150.63%

Showing 10 of 30 years.

Eureka Demographics

42.5median age

Median age

Female44.3 yrs
Male39.8 yrs

Adults

1,691
481 seniors · 28%1,210 other adults

Sex

Female 52.4% · 1,164Male 47.6% · 1,059

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 22 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 Income

$48,828median household income

Median household income

$48,828

Half of households earn more, half earn less

Median earnings

$36,429

Typical yearly pay for a worker 25 or older.

Poverty rate

22.4%

About 1 in 4 residents

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

Eureka Marital Status

46% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married46%48%44%
Never married28%35%21%
Divorced15%10%21%
Widowed9%4%14%
Separated2%4%1%

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