Marshall

County:: Clark County
County Seat:: Yes
Area (mi²):: 3.668
State:: Illinois

Marshall is a city located in Clark County, Illinois. Marshall has a 2025 population of 3,831. It is also the county seat of Clark County. Marshall is currently declining at a rate of -0.62% annually and its population has decreased by -3.04% since the most recent census, which recorded a population of 3,951 in 2020.

The average household income in Marshall is $82,526 with a poverty rate of 4.86%.The median age in Marshall is 42.7 years: 38.3 years for males, and 46.8 years for females.

Demographics

The racial composition of Marshall includes 94.98% White, and smaller percentages for Black or African American, Asian, other race and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	3,787	94.98%
Two or more races	145	3.64%
Black or African American	31	0.78%
Asian	16	0.4%
Other race	8	0.2%

Marshall Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marshall's average per capita income is $48,863. Household income levels show a median of $70,950. The poverty rate stands at 4.86%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$114,981	-
Families	$88,333	$95,005
Households	$70,950	$82,526
Non Families	$31,050	$44,931

$48,863

Average Income

$70,950

Median Household Income

4.86%

Poverty Rate