Eureka township
- County:
- Valley County
- County Seat:
- No
- Area (mi²):
- 35.529
- State:
- Nebraska
Eureka township is located in Valley County, Nebraska. Eureka township has a 2026 population of 36. Eureka township is currently declining at a rate of 0% annually and its population has increased by 2.86% since the most recent census, which recorded a population of 35 in 2020.
The median household income in Eureka township is $77,500 with a poverty rate of 0%. The median age in Eureka township is 71.3 years: 57.9 years for males, and 71.3 years for females. For every 100 females there are 136.7 males.