11.3% of the households in Oklahoma reported speaking a non-English language at home as their primary shared language, which is lower than the national average of 22%. 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.

In 2023, the most common non-English language spoken in households in Oklahoma was Spanish. 7.94% of the households in Oklahoma reported speaking Spanish at home as the primary shared language between all members living in the household.