Median Age
42 Years
Largest Age Group
35-44 Years
Approximately 14% of Residents
Under 20
22%
Over 65
22%
Avg Rent
$619
Population
17,188
Renter Mix
44% Rent
Marion, Illinois lives up to its slogan "Oasis of Opportunity" as a small-town community with genuine warmth, sitting at the crossroads of I-57 and Illinois Route 13 in Southern Illinois's storied Little Egypt region. Tower Square Plaza sits at the center of downtown, with the Marion Cultural and Civic Center, a 1,094-seat venue booking touring music, comedy, and theater, along South Market Street. The plaza's clock tower, built during the early-2000s, is the local meeting landmark.
Crab Orchard National Wildlife Refuge covers nearly 44,000 acres and is just minutes away, with the park's visitor center located in Marion. Residents also have Shawnee National Forest just 15 miles away. Sports fans can cheer on the Thrillville Thrillbillies, a collegiate summer league baseball team, at Mountain Dew Park. Fun-seekers from all over head to Marion to enjoy the go-karts, laser tag arena, mini golf, arcade, bowling alley, and more at the 100,000-square-foot ThrillHouse.
The rental market here leans practical and welcoming. Renters can find traditional apartment communities, garden-style units, and modest townhomes throughout the city, with newer developments in outlying subdivisions rounding out the options. The architectural character is largely mid-century residential, with some updated properties closer to the commercial core.
Median Household Income
$46,914
Average: $67,261
Education
3,793
Residents Have a Degree
Job Market
7,596
Workers Employed
Median Age
42 Years
Largest Age Group
35-44 Years
Approximately 14% of Residents
Under 20
22%
Over 65
22%
Housing Distribution
Marion has more homeowners than renters.
Education Distribution
Review this city's overall education levels.
As of September 2026, the average apartment rent in Marion, IL is $619 for one bedroom, $825 for two bedrooms, and $1,162 for three bedrooms. Apartment rent in Marion has increased by 1.0% in the past year.
Explore how walkable, bikeable, drivable, and transit-friendly Marion, IL is for everyday living.
Exceptionally Drivable
Drivability
Fairly Bikeable
Bikeability
Public
Grades K-5
465 Students
Public
Grades K-5
261 Students
Public
Grades K-5
484 Students
Public
Grades PK-5
380 Students
Crab Orchard Elementary School
Public
Grades PK-8
321 Students
Crab Orchard Elementary School
Public
Grades PK-8
321 Students
Public
Grades 6-8
738 Students
Williamson Co Intensive Program
Public
Grades K-12
Public
Grades 6-12
Public
Grades K-12
Public
Grades 9-12
152 Students
Public
Grades 9-12
1,051 Students
Public
Grades K-12
Public
Grades 6-12
Williamson Co Intensive Program
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.