In 2019, Marshall County, KS had a population of 9.75k people with a median age of 42.8 and a median household income of $51,895. Between 2018 and 2019 the population of Marshall County, KS declined from 9,798 to 9,749, a −0.5% decrease and its median household income grew from $50,234 to $51,895, a 3.31% increase.
The 5 largest ethnic groups in Marshall County, KS are White (Non-Hispanic) (94.6%), White (Hispanic) (2.11%), Two+ (Non-Hispanic) (1.86%), Asian (Non-Hispanic) (0.39%), and Black or African American (Non-Hispanic) (0.308%). 0% of the households in Marshall County, KS speak a non-English language at home as their primary language, and 99.5% of the residents in Marshall County, KS are U.S. citizens.
In 2019, the median property value in Marshall County, KS was $98,900, and the homeownership rate was 78.7%. Most people in Marshall County, KS drove alone to work, and the average commute time was 15.1 minutes. The average car ownership in Marshall County, KS was 2 cars per household.