Markham, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Markham, Illinois is 11,434 as of the 2023 American Community Survey, making it the 204th-largest city in Illinois. The median household income is $52,364, the median home value is $119,500, and the median age is 33.7.
The population has declined 10.0% since 2010 (12,546 → 11,290).
11,434
Population
2115
People / sq mi
$52,364
Median Income
$119,500
Median Home Value
Markham covers 5.4 sq mi of land at 2115 people per square mile.
About Markham, IL
Markham is a city in Illinois with a population of 11,434. It ranks #204 among cities in Illinois by population. The median age is 33.7, younger than the national median. The population is 47.3% male and 52.7% female.
The median household income in Markham is $52,364, below the US median of $74,580. 19.8% of residents live below the federal poverty level. Home values sit at a median of $119,500, with monthly rent averaging $1,689. The homeownership rate of 72.0% is higher than the national rate of 64.8%.
Educational attainment in Markham reflects 15.6% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 11.0% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 34.2 minutes each way.
Markham city Population History (2010-2024)
The city of Markham city had a population of 12,546 in 2010 and 11,290 in 2024, a -10.0% growth over 14 years. The peak was 12,728 in 2014. Average annual growth rate: -0.74%.
11,290
Population (2024)
12,546
Population (2010)
12,728
Peak (2014)
-0.74%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 12,546 |
| 2011 | 12,616 |
| 2012 | 12,671 |
| 2013 | 12,716 |
| 2014 | 12,728 |
| 2015 | 12,690 |
| 2016 | 12,608 |
| 2017 | 12,512 |
| 2018 | 12,395 |
| 2019 | 12,314 |
| 2020 | 11,619 |
| 2021 | 11,408 |
| 2022 | 11,258 |
| 2023 | 11,216 |
| 2024 | 11,290 |
Race & Ethnicity
| White | 15.0% |
| Black or African American | 70.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.6% |
| Two or More Races | 0.0% |
Economy & Income
$52,364
Median Household Income
$25,122
Per Capita Income
19.8%
Poverty Rate
6.4%
Unemployment Rate
Housing
$119,500
Median Home Value
$1,689
Median Rent
72.0%
Owner-Occupied
Education
87.0%
High School+
15.6%
Bachelor's+
Commute
7.7%
Drive Alone
62.0%
Public Transit
11.0%
Work From Home
34.2 min
Avg Commute
Community Profile
13.2%
Foreign Born
86.6%
Non-English at Home
3.8%
Veterans
13.8%
With Disability
90.2%
Health Insurance
95.6%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 25.8% |
| Information | 12.2% |
| Retail Trade | 11.2% |
| Education, Health Care & Social Services | 8.9% |
| Manufacturing | 7.8% |
| Finance, Insurance & Real Estate | 7.3% |
| Construction | 6.8% |
| Public Administration | 4.1% |
| Arts, Entertainment & Food Services | 3.7% |
| Transportation & Warehousing | 0.2% |
Largest cities in Illinois
Largest counties in Illinois
Part of Illinois
Metro areas in Illinois
City rankings
Frequently Asked Questions
Markham, Illinois has a population of 11,434 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 204th-largest city in Illinois.
The median household income in Markham, Illinois is $52,364, with 19.8% of residents living below the federal poverty level.
The median home value in Markham, Illinois is $119,500, with median monthly rent at $1,689 and a homeownership rate of 72.0%.
The median age in Markham, Illinois is 33.7 years. The population is 47.3% male and 52.7% female.
The population has declined 10.0% since 2010 (12,546 → 11,290).
More from Illinois
Population 2,707,648
Population 179,867
Population 149,785
Population 149,424
Population 147,649
Full rankings of Illinois cities by population
Statewide data for Illinois
Population, race, income, age, and trends across Illinois
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.