In 2023, Plymouth County, IA had a population of 25.7k people with a median age of 41.1 and a median household income of $81,600. Between 2022 and 2023 the population of Plymouth County, IA grew from 25,621 to 25,699, a 0.304% increase and its median household income grew from $79,963 to $81,600, a 2.05% increase.
The 5 largest ethnic groups in Plymouth County, IA are White (Non-Hispanic) (88.8%), Black or African American (Non-Hispanic) (2.36%), Other (Hispanic) (2.24%), Two+ (Hispanic) (2%), and Two+ (Non-Hispanic) (1.9%).
None of the households in Plymouth County, 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.
97.5% of the residents in Plymouth County, IA are U.S. citizens.
In 2023, the median property value in Plymouth County, IA was $218,600, and the homeownership rate was 73.7%.
Most people in Plymouth County, IA drove alone to work, and the average commute time was 18.8 minutes. The average car ownership in Plymouth County, IA was 2 cars per household.
Plymouth County, IA borders Cherokee County, IA, O'Brien County, IA, Sioux County, IA, Woodbury County, IA, and Union County, SD.