Willowbrook
- County:
- Reno County
- County Seat:
- No
- Area (mi²):
- 0.295
- State:
- Kansas
Willowbrook is a city located in Reno County, Kansas. Willowbrook has a 2026 population of 70. Willowbrook is currently declining at a rate of 0% annually and its population has decreased by -1.41% since the most recent census, which recorded a population of 71 in 2020.
The median household income in Willowbrook is $142,500 with a poverty rate of 0%. The median age in Willowbrook is 70.3 years: 69.3 years for males, and 70.4 years for females. For every 100 females there are 50.0 males.