Median Age
38 Years
Largest Age Group
15-24 Years
Approximately 16% of Residents
Under 20
28%
Over 65
18%
Markham is a small, grounded city in Cook County, about 25 miles south of downtown Chicago, covering just six square miles with a population of roughly 12,000. It carries the kind of low-key, residential character that draws people looking for space and affordability without straying too far from a major metropolitan area. The Cook County 6th District Courthouse sits within city limits, making it one of the more notable civic and institutional anchors in the community. South Suburban College is about a ten-minute drive away, and Prairie State College is reachable in roughly 14 minutes, giving the area solid access to higher education. Interstate 57, I-294, and I-80 all connect nearby, and five Metra commuter rail stations sit within a short drive, offering a practical link to Chicago for those who need it.
Housing in Markham leans heavily toward single-family homes and smaller multi-family buildings, with a mix of duplexes and modest apartment communities scattered throughout. Rental rates here run well below both the Illinois state average and what you'd find inside Chicago proper, making this one of the more attainable options in the south suburbs. The city's main commercial corridor along 159th Street offers everyday conveniences, while the Forest Preserves of Cook County, including Midlothian Meadows and Calumet Woods, provide nearby green space. The land Markham occupies was once the southern boundary of an 1816 treaty corridor stretching from the Kankakee River to Lake Michigan, a piece of regional history that still marks the area's geographic identity.
Residents of Markham enjoy going for a walk at the Midlothian Reservoir.
Hike through the Oak Forest Heritage Preserve near Markham.
Get out and practice golf at George W. Dunne National Driving Range.
Fishing is common near Markham at one of the many lakes in the area.
Many residents of Markham enjoy spending time at the Oak Forest Heritage Preserve.
Cool off in the summer at the Midlothian Reservoir.
Median Household Income
$44,080
Average: $59,547
Education
1,436
Residents Have a Degree
Job Market
5,426
Workers Employed
Median Age
38 Years
Largest Age Group
15-24 Years
Approximately 16% of Residents
Under 20
28%
Over 65
18%
Housing Distribution
Markham has more homeowners than renters.
Education Distribution
Review this city's overall education levels.
Explore how walkable, bikeable, drivable, and transit-friendly Markham, IL is for everyday living.
Fairly Walkable
Walkability
Limited Public Transit
Transit
Exceptionally Drivable
Drivability
Fairly Bikeable
Bikeability
Markham Park Elementary School
Public
Grades PK-5
260 Students
Barack H Obama Learning Academy
Public
Grades PK-8
445 Students
Public
Grades K-12
Prairie-Hills Junior High School
Public
Grades 6-8
750 Students
Barack H Obama Learning Academy
Public
Grades PK-8
445 Students
Public
Grades 7-8
188 Students
Public
Grades K-12
Public
Grades K-12
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† Our analysis of utilities, groceries, transportation, healthcare, home prices, and other goods and services is sourced from the Cost of Living Index, a respected benchmark published by the Council for Community and Economic Research (C2ER) that provides a thorough overview of living expenses across different regions.
Rent data is provided by CoStar Group’s Market Trend reports. As the industry leader in commercial real estate information, analytics, and news, CoStar conducts extensive research to produce and maintain a comprehensive database of commercial real estate information. We combine this data with public record to provide the most up-to-date rental information available.
Consumer goods, services, and home prices are sourced from the Cost of Living Index published by the Council for Community and Economic Research (C2ER). The data on this page is updated quarterly. It was last published in September 2026.
Demographic information comes from Neustar and combines detailed address data with U.S. Census and American Community Survey statistics to produce reliable local estimates.