Eureka Flag

Eureka

County:
Lincoln County
County Seat:
No
Area (mi²):
1.326
State:
Montana

Eureka is a town located in Lincoln County, Montana. Eureka has a 2025 population of 1,603 . Eureka is currently growing at a rate of 2.69% annually and its population has increased by 15.32% since the most recent census, which recorded a population of 1,390 in 2020.

The average household income in Eureka is $58,947 with a poverty rate of 29.35%. The median age in Eureka is 37.7 years: 41.6 years for males, and 35.3 years for females. For every 100 females there are 74.7 males.

1.6K
Total Population
1,209
Density (mi²)
42 2.69%
Growth

Eureka Population

Eureka Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Eureka includes 87.95% White, and smaller percentages for Native American and multiracial populations.

Population by Race

White (87.95%)

Two or more races (10%)

Native American (2.04%)

Race
Population
Percentage (of total)
White1,76787.95%
Two or more races20110%
Native American412.04%

Eureka Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Eureka's average per capita income is $0. Household income levels show a median of $43,750. The poverty rate stands at 29.35%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$53,819-
Households$43,750$58,947
Families$42,238$57,905
Non Families$26,818$44,451

$0

Average Income

$43,750

Median Household Income

29.35%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)