The 5 largest ethnic groups in Columbia, CA are White (Non-Hispanic) (76.7%), Two+ (Non-Hispanic) (9.04%), White (Hispanic) (3.52%), Other (Hispanic) (3.52%), and Asian (Non-Hispanic) (2.99%).
None of the households in Columbia, CA 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.
98.6% of the residents in Columbia, CA are U.S. citizens.