The 5 largest ethnic groups in Hennessey, OK are White (Non-Hispanic) (55.7%), Two+ (Hispanic) (18.9%), Other (Hispanic) (11.8%), White (Hispanic) (11.3%), and Two+ (Non-Hispanic) (1.34%).
None of the households in Hennessey, OK 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.
88.5% of the residents in Hennessey, OK are U.S. citizens.
Most people in Hennessey, OK drove alone to work, and the average commute time was 17.7 minutes. The average car ownership in Hennessey, OK was 2 cars per household.