The 5 largest ethnic groups in Plymouth, IL are White (Non-Hispanic) (91%), Asian (Non-Hispanic) (2.93%), Black or African American (Non-Hispanic) (2.73%), Two+ (Hispanic) (2.34%), and Other (Hispanic) (0.586%).
None of the households in Plymouth, 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.
100% of the residents in Plymouth, IL are U.S. citizens.