Markham, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Markham, Illinois had a total population of 11,355, the 204th largest city in Illinois, with a median household income of $57,302, which is 31% lower than the state average. The poverty rate is 18.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 31% below the state average, indicating significant economic challenges.
- Housing is very affordable with a home-value-to-income ratio of just 2.4x.
- Unemployment rate of 8.7% is notably above the national average.
Markham Quick Facts
How Markham Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 11,434 | 11,355 | -0.7% |
| Median household income | $52,364 | $57,302 | +9.4% |
| Median home value | $119,500 | $135,300 | +13.2% |
How Markham Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Markham Rankings in Illinois
Explore Illinois Rankings
Other Cities in Cook County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Chicago | 2,711,226 | $77,902 | 16.8% | $334,100 |
| Elgin | 114,934 | $90,282 | 9.8% | $273,000 |
| Cicero | 82,797 | $70,842 | 14.6% | $249,400 |
| Schaumburg | 76,868 | $97,514 | 5.7% | $330,400 |
| Evanston | 76,340 | $96,434 | 11.8% | $481,200 |
| Arlington Heights | 76,005 | $116,723 | 6.0% | $414,500 |
| Palatine | 66,293 | $97,819 | 8.2% | $355,600 |
| Skokie | 66,219 | $95,337 | 9.7% | $387,200 |
| Des Plaines | 59,156 | $97,875 | 6.0% | $335,600 |
| Orland Park | 57,916 | $98,910 | 7.3% | $367,200 |
Cities Similar to Markham
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Pontiac | 11,294 | $61,279 | $116,300 | 16.2% | 13.1% |
| Taylorville | 10,646 | $57,552 | $104,100 | 15.8% | 12.4% |
| Worth | 10,700 | $56,288 | $215,000 | 18.7% | 21.1% |
| Justice | 12,324 | $57,170 | $238,400 | 21.0% | 19.4% |
| Summit | 10,846 | $61,863 | $232,600 | 14.0% | 11.2% |
Population Overview
Markham is a small city located in Illinois, within Cook County. The total population is 11,355. It ranks as the 204th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Markham is 34.2 years. This is 12% lower than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Markham is $57,302. This is 31% lower than the state median of $83,390. It is also 29% lower than the national median of $80,734. The poverty rate stands at 18.0%. This is 53% higher than the state poverty rate of 11.8%. The unemployment rate is 8.7%. This is 49% higher than the state rate of 5.8%. The median home value is $135,300. Housing costs are 49% lower than the state median of $263,300. With a home-value-to-income ratio of just 2.4x, Markham is one of the most affordable housing markets in the area. 74.9% of occupied housing units are owner-occupied. This homeownership rate is 12% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Markham is Black or African American, making up 70.4% of the population. Hispanic or Latino residents account for 17.8%. The White (non-Hispanic) population (9.2%) is well below the state average of 58.1%. The Black or African American population is significantly higher than the state average (70.4% vs 13.3%). The Asian population (0.4%) is well below the state average of 5.9%.
Education
17.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 53% lower than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 87.5%.
Data Sources & Methodology
All demographic data for Markham, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all Illinois city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Markham, Illinois?
Markham, Illinois has a population of 11,355 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Markham, IL?
The median household income in Markham is $57,302, which is 29% lower than the national median of $80,734.
What is the poverty rate in Markham, IL?
The poverty rate in Markham is 18.0%. This means approximately 2,019 residents live below the federal poverty line.
What is the racial makeup of Markham, Illinois?
Markham's population is 9.2% White, 70.4% Black, 17.8% Hispanic/Latino, and 0.4% Asian.
What is the median home value in Markham, IL?
The median home value in Markham is $135,300. The home-value-to-income ratio is 2.4x.
How educated is Markham, Illinois?
17.7% of adults (25+) in Markham hold a bachelor's degree or higher, and 5.1% hold a graduate or professional degree.