Marion is a city in Williamson County, Illinois, home to about 16,836 people across 14 square miles. Its ZIP code is 62959.
Homes sold for a median of $138 per square foot in the three months ending August 2026, a balanced market.
Mostly Marion; also Crab Orchard and Whiteash
Each card is that ZIP code’s whole market, including any part outside Marion. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Marion’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | St. Louis Lambert International Airport (STL)105 miles away |
|---|---|
| Closer regional airport | Veterans Airport of Southern Illinois (MWA)5 miles away |
| Nearest city of 250,000+ | St. Louis, MO95 miles away |
| Nearest city of 1 million+ | Chicago, IL291 miles away |
Straight-line distances from the center of Marion; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Marion had 16,855 residents in the 2020 census, up 5% since 2000.
It’s the 150th largest of 1,450 towns in Illinois by population.
Williamson County grew from 27,796 residents in 1900 to 67,153 in 2020.
Williamson County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 23°F. About 49 inches of rain and melted snow fall in a typical year, with about 11 inches of snow.
Source: NOAA 1991–2020 climate normals, Carbondale Sewage Plt, IL weather station (13 miles away).
26,291 jobs at 1,597 businesses in Williamson County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
572 doctors and other health care providers list an office in Marion.
Nearest hospitals
Providers with an office here
| Primary care doctors | 47 |
|---|---|
| Specialist doctors | 76 |
| Dentists | 29 |
| Nurse practitioners and physician assistants | 100 |
| Mental health providers | 238 |
| Physical and occupational therapists | 43 |
| Optometrists | 22 |
| Chiropractors | 17 |
| Pharmacies | 13 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (16 nearby)
Grocery stores (2 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 2.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1839.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Crab Orchard CUSD 3, Marion CUSD 2, Frankln/Johnsn/Massc/Willimsn ROE and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Crab Orchard Elementary SchoolMarion | Pre-K–8 | 323 | Public | 6.7 mi |
| Jefferson Elem SchoolMarion | Pre-K–5 | 376 | Public | 1.0 mi |
| Lincoln Elem SchoolMarion | K–5 | 482 | Public | 1.5 mi |
| Longfellow Elem SchoolMarion | K–5 | 261 | Public | 0.7 mi |
| Washington Elem SchoolMarion | K–5 | 465 | Public | 0.5 mi |
| Roe 21 AlopMarion | 4–12 | — | Alternative Education | 0.5 mi |
| Marion Jr High SchoolMarion | 6–8 | 742 | Public | 0.9 mi |
| Starquest Acad RSSP SouthMarion | 6–12 | — | Alternative Education | 41.2 mi |
| Crab Orchard High SchoolMarion | 9–12 | 154 | Public | 6.7 mi |
| Marion High SchoolMarion | 9–12 | 1,075 | Public | 1.1 mi |
| ROE 21 Senior's Plus ALOPMarion | 10–12 | — | Alternative Education | 0.5 mi |
| Williamson Co Intensive ProgramMarion | — | — | Special Education | 1.1 mi |
| Williamson Co Learning CntrMarion | — | — | Special Education | 0.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Marion Adventist SchoolMarion | K–7 | 9 | Seventh-day Adventist | 3.6 mi |
| Agape Christian High SchoolMarion | 9–12 | 85 | Christian (no specific denomination) | 5.1 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Crab Orchard, Whiteash and Spillertown.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.