Summerfield is a village in St. Clair County, Illinois, home to about 248 people across 0.5 square miles. Its ZIP code is 62289, and parts of 62293 are in Summerfield too.
Homes sold for a median of $136 per square foot in the three months ending August 2026.
Mostly Summerfield
Mostly Trenton; part is in Summerfield
Each card is that ZIP code’s whole market, including any part outside Summerfield. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | St. Louis Lambert International Airport (STL)37 miles away |
|---|---|
| Closer regional airport | Scott AFB/Midamerica Airport (BLV)8 miles away |
| Nearest city of 250,000+ | St. Louis, MO29 miles away |
| Nearest city of 1 million+ | Chicago, IL247 miles away |
Straight-line distances from the center of Summerfield; 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.
Summerfield had 347 residents in the 2020 census, down 26% since 2000.
It’s the 1142nd largest of 1,450 towns in Illinois by population.
St. Clair County grew from 86,685 residents in 1900 to 257,400 in 2020.
St. Clair County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 90°F in summer, and winter lows average 24°F. About 43.4 inches of rain and melted snow fall in a typical year, with about 11 inches of snow.
Source: NOAA 1991–2020 climate normals, Belleville Siu Rsch, IL weather station (9 miles away).
72,871 jobs at 4,973 businesses in St. Clair County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2022 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Parks (2 nearby)
Grocery stores
Pharmacies
Libraries
Counts are within about 1 mile 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.
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Shares ZIP codes with Trenton.
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.