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, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

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%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

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