In 2023, Wall Lake, IA had a population of 641 people with a median age of 53.5 and a median household income of $59,306. Between 2022 and 2023 the population of Wall Lake, IA declined from 691 to 641, a −7.24% decrease and its median household income declined from $63,125 to $59,306, a −6.05% decrease.
The 5 largest ethnic groups in Wall Lake, IA are White (Non-Hispanic) (95%), Two+ (Non-Hispanic) (2.65%), Other (Hispanic) (1.87%), White (Hispanic) (0.468%), and Black or African American (Non-Hispanic) (0%).
None of the households in Wall Lake, 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.
98.4% of the residents in Wall Lake, IA are U.S. citizens.
In 2023, the median property value in Wall Lake, IA was $116,500, and the homeownership rate was 83.9%.