Junction City is a village in Marion County, Illinois, home to about 638 people across 0.7 square miles. It has no ZIP code of its own: it’s part of 62882.
Homes sold for a median of $85 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Sandoval; part is in Junction City
Each card is that ZIP code’s whole market, including any part outside Junction City. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Junction City’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)68 miles away |
|---|---|
| Closer regional airport | Scott AFB/Midamerica Airport (BLV)39 miles away |
| Nearest city of 250,000+ | St. Louis, MO61 miles away |
| Nearest city of 1 million+ | Chicago, IL235 miles away |
Straight-line distances from the center of Junction City; 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.
Junction City had 527 residents in the 2020 census, down 6% since 2000.
It’s the 851st largest of 1,450 towns in Illinois by population.
Marion County grew from 30,446 residents in 1900 to 37,729 in 2020.
Marion 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 21°F. About 45.9 inches of rain and melted snow fall in a typical year, with about 10 inches of snow.
Source: NOAA 1991–2020 climate normals, Salem, IL weather station (9 miles away).
11,370 jobs at 863 businesses in Marion County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
2 doctors and other health care providers list an office in Junction City.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|---|
| Mental health providers | 1 |
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.
Public schools here are run by Sandoval CUSD 501. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Sandoval Elem SchoolSandoval | Pre-K–6 | 221 | Public | 0.2 mi |
| Sandoval Jr High SchoolSandoval | 6–8 | 84 | Public | 1.0 mi |
| Sandoval Sr High SchoolSandoval | 9–12 | 124 | Public | 1.0 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Sandoval.
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.