Radium
- County:
- Pawnee County
- County Seat:
- No
- Area (mi²):
- 0.041
- State:
- Kansas
Radium is a city located in Pawnee County, Kansas. Radium has a 2026 population of 22. Radium is currently declining at a rate of 0% annually and its population has decreased by -4.35% since the most recent census, which recorded a population of 23 in 2020.
The median household income in Radium is $56,250 with a poverty rate of 25%. The median age in Radium is 63.5 years: 59.5 years for males, and 65 years for females. For every 100 females there are 166.7 males.