Walnut Hill is a village in Jefferson County, Illinois, home to about 127 people across 0.4 square miles. It has no ZIP code of its own: it’s part of 62893.
Homes sold for a median of $87 per square foot in the three months ending August 2026, a seller’s market.
Population127334 per sq mi
Median home value$31,600Census, as estimated by owners
Price per sq ft$87Sold homes, 3 months to August 2026
Each card is that ZIP code’s whole market, including any part outside Walnut Hill. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
The Walnut Hill guide is on the way
We’re writing up Walnut Hill’s story and what everyday life there is like, for people thinking about moving in.
History
What it’s like to live there
Getting around
Things to do
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Around Walnut Hill
Distances
Nearest major airport
St. Louis Lambert International Airport (STL)75 miles away
Closer regional airport
Scott AFB/Midamerica Airport (BLV)44 miles away
Nearest city of 250,000+
St. Louis, MO66 miles away
Nearest city of 1 million+
Chicago, IL243 miles away
Straight-line distances from the center of Walnut Hill; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Who represents Walnut Hill
U.S. Representative · Illinois’s 12th DistrictMike Bost (R)
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Population over time
Walnut Hill had 95 residents in the 2020 census, down 13% since 2000.
It’s the 1303rd largest of 1,450 towns in Illinois by population.
Jefferson County grew from 28,133 residents in 1900 to 37,113 in 2020.
Jefferson County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Weather by month
Average highs peak around 88°F in summer, and winter lows average 21°F. About 44.8 inches of rain and melted snow fall in a typical year, with about 12 inches of snow.
Source: NOAA 1991–2020 climate normals, Iuka 12 Sw, IL weather station (4 miles away).
Jobs in Jefferson County
19,260 jobs at 882 businesses in Jefferson County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2022 (private employers; jobs counted where people work).
Health care
Nearest hospitals
Ssm Health St. Mary's Hospital -CentraliaGeneral hospital · emergency room · CMS rating 3 of 5 · Centralia6.2 miles
Deaconess Illinois CrossroadsGeneral hospital · emergency room · Mount Vernon11.9 miles
Good Samaritan Regional Hlth CenterGeneral hospital · emergency room · CMS rating 4 of 5 · Mount Vernon12.8 miles
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
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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.