Clear Lake is a village in Sangamon County, Illinois, home to about 16 people across 0.1 square miles. It has no ZIP code of its own: it’s part of 62707.
Homes sold for a median of $142 per square foot in the three months ending August 2026, a seller’s market.
Mostly Springfield; part is in Clear Lake
Each card is that ZIP code’s whole market, including any part outside Clear Lake. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Clear Lake’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)85 miles away |
|---|---|
| Closer regional airport | Abraham Lincoln Capital Airport (SPI)1 mile away |
| Nearest city of 250,000+ | St. Louis, MO90 miles away |
| Nearest city of 1 million+ | Chicago, IL171 miles away |
Straight-line distances from the center of Clear Lake; 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.
Clear Lake had 203 residents in the 2020 census, down 24% since 2000.
It’s the 1442nd largest of 1,450 towns in Illinois by population.
Sangamon County grew from 71,593 residents in 1900 to 196,343 in 2020.
Sangamon County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 20°F. About 38.2 inches of rain and melted snow fall in a typical year, with about 22 inches of snow.
Source: NOAA 1991–2020 climate normals, Springfield Capital Ap, IL weather station (2 miles away).
80,005 jobs at 4,925 businesses in Sangamon County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
27 doctors and other health care providers list an office in Clear Lake.
Nearest hospitals
Providers with an office here
| Primary care doctors | 4 |
|---|---|
| Specialist doctors | 2 |
| Nurse practitioners and physician assistants | 14 |
| Mental health providers | 4 |
| Physical and occupational therapists | 3 |
| Pharmacies | 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.
Parks (1 nearby)
Grocery stores
Pharmacies
Libraries
Museums
Theaters and performance venues
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 Springfield, Sherman and Riverton.
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.