The 5 largest ethnic groups in Swan, IA are White (Non-Hispanic) (84.5%), Black or African American (Non-Hispanic) (10.3%), Other (Hispanic) (3.45%), Two+ (Non-Hispanic) (1.72%), and White (Hispanic) (0%).
None of the households in Swan, 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.
96.6% of the residents in Swan, IA are U.S. citizens.