In 2023, Armstrong, IA had a population of 709 people with a median age of 62.3 and a median household income of $52,279. Between 2022 and 2023 the population of Armstrong, IA declined from 755 to 709, a −6.09% decrease and its median household income grew from $49,338 to $52,279, a 5.96% increase.
The 5 largest ethnic groups in Armstrong, IA are White (Non-Hispanic) (97.3%), Black or African American (Non-Hispanic) (1.13%), Two+ (Non-Hispanic) (0.846%), White (Hispanic) (0.564%), and Asian (Non-Hispanic) (0.141%).
None of the households in Armstrong, 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.
99.3% of the residents in Armstrong, IA are U.S. citizens.
In 2023, the median property value in Armstrong, IA was $86,400, and the homeownership rate was 84.5%.
Most people in Armstrong, IA drove alone to work, and the average commute time was 16.7 minutes. The average car ownership in Armstrong, IA was 2 cars per household.