
Hollenberg
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 0.073
- State:
- Kansas
Hollenberg is a city located in Washington County, Kansas. Hollenberg has a 2025 population of 13. Hollenberg is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 13 in 2020.
The average household income in Hollenberg is $41,257 with a poverty rate of 20%. The median age in Hollenberg is 63.6 years: 0 years for males, and 61 years for females.