In 2019, Marshall County, OK had a population of 16.5k people with a median age of 42.8 and a median household income of $45,746. Between 2018 and 2019 the population of Marshall County, OK grew from 16,376 to 16,505, a 0.788% increase and its median household income declined from $45,828 to $45,746, a −0.179% decrease.
The 5 largest ethnic groups in Marshall County, OK are White (Non-Hispanic) (65.1%), Other (Hispanic) (11.3%), Two+ (Non-Hispanic) (8.02%), American Indian & Alaska Native (Non-Hispanic) (6.95%), and White (Hispanic) (5.13%). 0% of the households in Marshall County, OK speak a non-English language at home as their primary language.
93.8% of the residents in Marshall County, OK are U.S. citizens.
In 2019, the median property value in Marshall County, OK was $89,700, and the homeownership rate was 72.6%. Most people in Marshall County, OK drove alone to work, and the average commute time was 23.4 minutes. The average car ownership in Marshall County, OK was 2 cars per household.