Markham

County:: Cook County
County Seat:: No
Area (mi²):: 5.405
State:: Illinois

Markham is a city located in Cook County, Illinois. Markham has a 2025 population of 10,801. Markham is currently declining at a rate of -1.5% annually and its population has decreased by -7.05% since the most recent census, which recorded a population of 11,620 in 2020.

The average household income in Markham is $74,048 with a poverty rate of 18.88%.The median age in Markham is 33.7 years: 29.7 years for males, and 36.4 years for females.

Demographics

The racial composition of Markham includes 70.22% Black or African American, 15% White, 9.84% other race, and smaller percentages for Native American, Asian and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
Black or African American	8,029	70.22%
White	1,715	15%
Other race	1,125	9.84%
Two or more races	476	4.16%
Native American	55	0.48%
Asian	34	0.3%

Markham Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Markham's average per capita income is $40,270. Household income levels show a median of $52,364. The poverty rate stands at 18.88%.

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	$93,060	-
Families	$58,363	$75,505
Households	$52,364	$74,048
Non Families	$39,830	$58,884

$40,270

Average Income

$52,364

Median Household Income

18.88%

Poverty Rate