In 2023, Plymouth, IA had a population of 405 people with a median age of 38 and a median household income of $66,250. Between 2022 and 2023 the population of Plymouth, IA grew from 374 to 405, a 8.29% increase and its median household income declined from $69,531 to $66,250, a −4.72% decrease.
The 5 largest ethnic groups in Plymouth, IA are White (Non-Hispanic) (97.5%), Two+ (Non-Hispanic) (0.988%), White (Hispanic) (0.494%), Black or African American (Non-Hispanic) (0.494%), and American Indian & Alaska Native (Hispanic) (0.247%).
None of the households in Plymouth, 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.
99.8% of the residents in Plymouth, IA are U.S. citizens.
In 2023, the median property value in Plymouth, IA was $105,200, and the homeownership rate was 78.8%.
Most people in Plymouth, IA drove alone to work, and the average commute time was 21.1 minutes. The average car ownership in Plymouth, IA was 2 cars per household.