In 2020, Plymouth County, IA had a population of 25.1k people with a median age of 40.5 and a median household income of $71,147. Between 2019 and 2020 the population of Plymouth County, IA grew from 25,068 to 25,141, a 0.291% increase and its median household income grew from $67,297 to $71,147, a 5.72% increase.
The 5 largest ethnic groups in Plymouth County, IA are White (Non-Hispanic) (91.2%), White (Hispanic) (3.31%), Other (Hispanic) (1.86%), Black or African American (Non-Hispanic) (1.44%), and Two+ (Non-Hispanic) (0.764%).
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 2020, the median property value in Plymouth County, IA was $172,600, and the homeownership rate was 76.7%.
Most people in Plymouth County, IA drove alone to work, and the average commute time was 18.3 minutes. The average car ownership in Plymouth County, IA was 2 cars per household.