The 5 largest ethnic groups in Ottawa County, KS are White (Non-Hispanic) (93.1%), Two+ (Non-Hispanic) (2.54%), Two+ (Hispanic) (1.54%), Other (Hispanic) (1.05%), and Black or African American (Non-Hispanic) (0.692%).
None of the households in Ottawa County, KS 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.
99.2% of the residents in Ottawa County, KS are U.S. citizens.
Ottawa County, KS borders Clay County, KS, Cloud County, KS, Dickinson County, KS, Lincoln County, KS, Mitchell County, KS, and Saline County, KS.