In 2023, Hollenberg, KS had a population of 15 people with a median age of 62.3 and a median household income of $50,625. Between 2022 and 2023 the population of Hollenberg, KS declined from 19 to 15, a −21.1% decrease and its median household income grew from $47,778 to $50,625, a 5.96% increase.
The 5 largest ethnic groups in Hollenberg, KS are White (Non-Hispanic) (86.7%), Two Races Excluding Other, & Three or More Races (Non-Hispanic) (13.3%), Black or African American (Non-Hispanic) (0%), American Indian & Alaska Native (Non-Hispanic) (0%), and Asian (Non-Hispanic) (0%).
None of the households in Hollenberg, KS reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
In 2023, the median property value in Hollenberg, KS was $9,999, and the homeownership rate was 78.6%.