
Eureka
- County:
- Clinton County
- County Seat:
- No
- Area (mi²):
- 1.009
- State:
- Michigan
Eureka is a CDP located in Clinton County, Michigan. Eureka has a 2025 population of 129. Eureka is currently growing at a rate of 7.5% annually but its population has decreased by -15.69% since the most recent census, which recorded a population of 153 in 2020.
The average household income in Eureka is $83,453 with a poverty rate of 18.68%. The median age in Eureka is 40.7 years: 52.5 years for males, and 31.3 years for females.