Lerna is a village in Coles County, Illinois, home to about 226 people across 0.1 square miles. It has no ZIP code of its own: it’s part of 62440.
Part is in Lerna, part in Janesville
We’re writing up Lerna’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Indianapolis International Airport (IND)107 miles away |
|---|---|
| Closer regional airport | Decatur Airport (DEC)44 miles away |
| Nearest city of 250,000+ | Indianapolis, IN115 miles away |
| Nearest city of 1 million+ | Chicago, IL171 miles away |
Straight-line distances from the center of Lerna; 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.
Lerna had 226 residents in the 2020 census, down 30% since 2000.
It’s the 1172nd largest of 1,450 towns in Illinois by population.
Coles County grew from 34,146 residents in 1900 to 46,863 in 2020.
Coles County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 20°F. About 35.9 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Mattoon Coles Co Ap, IL weather station (6 miles away).
20,638 jobs at 1,112 businesses in Coles 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 Lerna.
Nearest hospitals
Providers with an office here
| Physical and occupational therapists | 1 |
|---|---|
| Chiropractors | 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 Clk/Cls/Cmbn/Dglas/Edgr/Mltr/Shlb. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Lerna BridgesLerna | 6–12 | — | Alternative Education | 2.2 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 Janesville.
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.