In 2023, Garrison, IA had a population of 292 people with a median age of 40.3 and a median household income of $57,083. Between 2022 and 2023 the population of Garrison, IA declined from 328 to 292, a −11% decrease and its median household income grew from $49,844 to $57,083, a 14.5% increase.
The 5 largest ethnic groups in Garrison, IA are White (Non-Hispanic) (95.9%), Two+ (Hispanic) (2.05%), Asian (Non-Hispanic) (1.03%), Two+ (Non-Hispanic) (0.685%), and Black or African American (Non-Hispanic) (0.342%).
None of the households in Garrison, IA 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.
99.7% of the residents in Garrison, IA are U.S. citizens.
In 2023, the median property value in Garrison, IA was $65,000, and the homeownership rate was 73.5%.
Most people in Garrison, IA drove alone to work, and the average commute time was 24.6 minutes. The average car ownership in Garrison, IA was 2 cars per household.