Chester is a city in Randolph County, Illinois, home to about 6,797 people across 5.8 square miles. Its ZIP code is 62233.
Homes sold for a median of $91 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside Chester. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Chester’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)65 miles away |
|---|---|
| Closer regional airport | Scott AFB/Midamerica Airport (BLV)43 miles away |
| Nearest city of 250,000+ | St. Louis, MO55 miles away |
| Nearest city of 1 million+ | Chicago, IL293 miles away |
Straight-line distances from the center of Chester; 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.
Chester had 6,814 residents in the 2020 census, up 31% since 2000.
It’s the 290th largest of 1,450 towns in Illinois by population.
Randolph County grew from 28,001 residents in 1900 to 30,163 in 2020.
Randolph County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 89°F in summer, and winter lows average 24°F. About 42.8 inches of rain and melted snow fall in a typical year, with about 4 inches of snow.
Source: NOAA 1991–2020 climate normals, Kaskaskia Rvr Navigation Lock, IL weather station (8 miles away).
10,736 jobs at 636 businesses in Randolph County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
50 doctors and other health care providers list an office in Chester.
Nearest hospitals
Providers with an office here
| Primary care doctors | 11 |
|---|---|
| Specialist doctors | 5 |
| Dentists | 7 |
| Nurse practitioners and physician assistants | 8 |
| Mental health providers | 9 |
| Physical and occupational therapists | 6 |
| Optometrists | 1 |
| Chiropractors | 3 |
| Pharmacies | 5 |
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 (5 nearby)
Libraries (1 nearby)
Counts are within about 2 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.
Public schools here are run by Chester CUSD 139. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Chester Elem SchoolChester | Pre-K–8 | 640 | Public | 0.9 mi |
| Chester High SchoolChester | 9–12 | 335 | Public | 0.5 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St John Lutheran SchoolChester | Pre-K–8 | 62 | Lutheran Church–Missouri Synod | 0.2 mi |
| St Mary's Catholic SchoolChester | Pre-K–8 | 60 | Roman Catholic | 0.5 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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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.