Marshall County's estimated 2026 population is 9,924 with a growth rate of -0.13% in the past year according to the most recent United States census data. Marshall County is the 39th largest county in Kansas. The 2010 population was 10,112 and has seen a growth of -1.86% since that time.
Data after 2023 is projected based on recent change
The racial composition of Marshall County includes 94.87% White, and smaller percentages for Black or African American, Asian, Native American, other race and multiracial populations.
White (94.87%)
Two or more races (3.68%)
Black or African American (0.66%)
Asian (0.31%)
Native American (0.29%)
Other race (0.19%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 9,488 | 94.87% |
| Two or more races | 368 | 3.68% |
| Black or African American | 66 | 0.66% |
| Asian | 31 | 0.31% |
| Native American | 29 | 0.29% |
| Other race | 19 | 0.19% |
Married
Widowed
Divorced
Separated
Never Married
Marshall County's average per capita income is $44,722. Household income levels show a median of $70,828. The poverty rate stands at 9.36%.
Name | Median | Mean |
|---|---|---|
| Married Families | $92,784 | - |
| Families | $83,873 | $101,330 |
| Households | $70,828 | $83,404 |
| Non Families | $35,847 | $44,473 |
Average Income
Median Household Income
Poverty Rate