Eureka is located in Ward County, North Dakota. Eureka has a 2025 population of 374 . Eureka is currently declining at a rate of -0.27% annually and its population has decreased by -3.86% since the most recent census, which recorded a population of 389 in 2020.
The average household income in Eureka is $86,521 with a poverty rate of 21%. The median age in Eureka is 37.4 years: 37.2 years for males, and 38.4 years for females. For every 100 females there are 72.4 males.
Data after 2023 is projected based on recent change
The racial composition of Eureka includes 89% White, 8% Native American, 3% Asian, and smaller percentages for and multiracial populations.
White (89%)
Native American (8%)
Asian (3%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 89 | 89% |
| Native American | 8 | 8% |
| Asian | 3 | 3% |
Married
Widowed
Divorced
Separated
Never Married
Eureka's average per capita income is $46,083. Household income levels show a median of $63,625. The poverty rate stands at 21%.
Name | Median | Mean |
|---|---|---|
| Families | $130,536 | $149,810 |
| Married Families | $130,536 | - |
| Households | $63,625 | $86,521 |
| Non Families | $48,333 | $44,988 |
Average Income
Median Household Income
Poverty Rate