Lake Township is one of fifteen townships in Clinton County, Illinois, USA. As of the 2020 census, its population was 812 and it contained 373 housing units. Lake Township was formed from part of Crooked Creek (Brookside) Township.

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Town numbers

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Living in Lake

Work & commute in Lake

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Most working residents leave Lake for work: only 3% work in town. The top destinations are Centralia (19%), Carlyle (6%) and Breese (4%). Half commute less than 16 miles.

Centralia

19%

Carlyle

Breese

Centralia

3%Work in townlive and work in Lake 16 miWhere do people commute?the commute map 558Jobs based herea job hub

Census LEHD 2023 · ACSWork & commute in Lake →

Health in Lake

Compared with Illinois

1better than IL·9worse

of 32 measures CDC estimates. The other 22 are too close to call.

Conditions 7▼ 5 close Habits 1▼ 3 close Care 1▲ 6 close Mind 1▼ 4 close Everyday needs all close

BetterToo close to callWorse

What stands out

8.2%Fewer uninsured adultsIL 9.9% · better 9.1%More adults with COPDIL 6.3% · worse

Care nearby

Ssm Health St. Mary's Hospital -CentraliaCentralia · 11.1 mi · ER

Sihf Healthcare - SalemSalem · 21.2 mi · sliding-scale fees

Primary careShortage · county-wide

DentalNo shortage

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · ZIP codes 62231, 62801 · CMS · HRSAHealth in Lake →

Natural hazards in Lake

High

Expected storm and flood damage is higher than in 73% of U.S. communities.

🌊 Inland flooding🏚️ Earthquakes🌪️ Tornadoes

0Does Lake flood?no paid flood claims on record NoneDisasters that paid out hereof 5 declared for Clinton County MapLake vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Lake →

Climate in Lake

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Lake has chilly winters and warm summers. A typical July afternoon reaches 88°, a January night drops to 23°, and about 7 inches of snow falls in a normal winter.

42° / 25°Winter

66° / 45°Spring

86° / 65°Summer

68° / 46°Fall

How much snow does Lake get?About 7 inches a winter.Rain & snow →When is the first frost?Around Oct 29, with the last in spring around Apr 6.Frost dates →Is it warmer than it used to be?+0.8° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in Lake →

Schools in Lake

All Lake schools →

School Grade C

The public schools Lake’s kids attend, from kindergarten through graduation, trail 66% of Illinois’s districts on state tests and graduation. Among towns with similar incomes, they rank near the bottom.

Schools1

Trinity Lutheran SchoolElementary · Grades PK–8 · 65 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within IL. Ratings are from neighbors.