In 2023, Allendale, IL had a population of 491 people with a median age of 48 and a median household income of $70,500. Between 2022 and 2023 the population of Allendale, IL declined from 521 to 491, a −5.76% decrease and its median household income declined from $74,583 to $70,500, a −5.47% decrease.
The 5 largest ethnic groups in Allendale, IL are White (Non-Hispanic) (95.5%), Asian (Non-Hispanic) (1.83%), Two+ (Non-Hispanic) (1.83%), Asian (Hispanic) (0.611%), and Other (Hispanic) (0.204%).
None of the households in Allendale, IL 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.
98.8% of the residents in Allendale, IL are U.S. citizens.
In 2023, the median property value in Allendale, IL was $83,500, and the homeownership rate was 94.5%.
Most people in Allendale, IL drove alone to work, and the average commute time was 27.9 minutes. The average car ownership in Allendale, IL was 3 cars per household.