Summary for Blair

About Blair (Click for our profile page)

Located in: Randolph County (see below)

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

Telephone Area Codes: 618 & 730<1>

Elevation: 500 feet [152.4 m] above sea level<2>

GPS Coordinates (Latitude/Longitude)<3>

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

Lat: 38.044800° (or 38°2'41" N)

Lon: -89.741800° (or -89°44'30" W)

USGS Topo Map: Steeleville<4>

Federal GNIS/FIPS Codes for Blair

GNIS ID: 404539

FIPS State / Place Code: 17 / 06418

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

About Randolph County

The community of Chester is the County Seat for Randolph County.

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

Population

Year	Population
2019 Est:<5>	31,782 (5.03% decrease since 2010)
2010	33,464 (1.27% decrease since 2000)
2000:	33,893

Total Area:<6> 597 sq. miles [1,546.8 km²] - of which 3.63% is water (21.7 sq. miles [56.2 km²])

Housing Units: <7> 13,707

Federal GNIS/FIPS Codes for Randolph

GNIS ID: 1784967

FIPS State / County Code: 17 / 157

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

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://illinois.gov

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

Parks: https://www.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 Blair)

Off-the-Road Links ...

Unfortunately, we don't know of a website for Blair. If you can help, please contact us through our Feedback Page.

The official website for State of Illinois: https://illinois.gov

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 618 code has been Overlayed with the 730 area code. New phone numbers in the Blair area will be assigned with one of these codes: 618 or 730. As a result, placing a call in the Blair 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 Blair - it will be higher in some places and lower in others.
<3>	Longitude & latitude values may not be the geographic center of Blair, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<4>	Name of the USGS 7.5 Minute topographic map which includes Blair.
<5>	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.
<6>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Blair. 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.
<7>	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).