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Summary for Clear Lake

About Clear Lake (Click for our profile page)

Located in: Sangamon County (see below)

Typical Abbreviation: Clear Lk.

Time Zone: Clear Lake lies in the Central Time Zone (CST/CDT)

Telephone Area Codes: 217 & 447<1>

Elevation: 560 feet [170.69 m] above sea level<2>

From the 2010 US Census (For more detail, see our Census Page for Clear Lake)

Population

Year	Population
2019 Est:<3>	221 (3.49% decrease since 2010)
2010:	229 (14.23% decrease since 2000)
2000:	267

Total Area:<4> 0.11 sq. miles [0.3 km²]

Housing Units:<5> 101

GPS Coordinates (Latitude/Longitude)<6>

For the purpose of mapping and calculating distances, we have chosen the following reference point for Clear Lake:

Lat: 39.813900° (or 39°48'50" N)

Lon: -89.568200° (or -89°34'5" W)

USGS Topo Map: Springfield East<7>

Federal GNIS/FIPS Codes for Clear Lake

GNIS ID: 2397642

FIPS State / Place Code: 17 / 14845

(For more about Federal Codes, see our Misc Page for Clear Lake)

About Sangamon County

The village of Springfield is the County Seat for Sangamon County.

From the 2010 US Census (For more detail, see our Census Page for Sangamon)

Population

Year	Population
2019 Est:	194,672 (1.57% decrease since 2010)
2010	197,769 (4.67% increase since 2000)
2000:	188,951

Total Area: 877 sq. miles [2,271.5 km²] - of which 0.99% is water (8.72 sq. miles [22.6 km²])

Housing Units: 89,901

Official Website: https://sangamonil.gov/

Federal GNIS/FIPS Codes for Sangamon

GNIS ID: 1785010

FIPS State / County Code: 17 / 167

(For more about Federal Codes, see our Misc Page for Clear Lake)

About Illinois

From the US Census

Population

Year	Population
2019 Est:	12,667,017 (1.28% decrease since 2010)
2010:	12,830,632 (3.31% increase since 2000)
2000:	12,419,293

Websites for State of Illinois

Official Website: https://www.illinois.gov/

Tourism: https://www.enjoyillinois.com/

Parks: https://dnr.illinois.gov/

Fishing: https://www.ifishillinois.org/

Hunting: https://dnr.illinois.gov/hunting.html

Federal GNIS/FIPS Codes for State of Illinois

GNIS ID: 1779784

FIPS State: 17

(For more about Federal Codes, see our Misc Page for Clear Lake)

Footnotes ...

<1>	When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 217 code has been Overlayed with the 447 area code. New phone numbers in the Clear Lake area will be assigned with one of these codes: 217 or 447. As a result, placing a call in the Clear Lake area will require 10-digit dialing (where you enter both the area code and then the phone number).
<2>	The elevation is an estimate for the area around Clear Lake - it will be higher in some places and lower in others.
<3>	Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2019.
<4>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Clear Lake. The value given by the Census Bureau reflects their statistical (or sampling) requirements. For example, if there is a cluster of people living just outside of the community's official boundary, the Census-defined area might be expanded to include that group.
<5>	A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).
<6>	Longitude & latitude values may not be the geographic center of Clear Lake, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<7>	Name of the USGS 7.5 Minute topographic map which includes Clear Lake.