Eureka township
- County:
- Greenwood County
- County Seat:
- No
- Area (mi²):
- 35.996
- State:
- Kansas
Eureka township is located in Greenwood County, Kansas. Eureka township has a 2026 population of 85. Eureka township is currently declining at a rate of 0% annually and its population has decreased by -2.3% since the most recent census, which recorded a population of 87 in 2020.
The median household income in Eureka township is $72,276 with a poverty rate of 0%. The median age in Eureka township is 54.5 years: 67.8 years for males, and 54.2 years for females. For every 100 females there are 41.9 males.