Blair township, Illinois

Blair township is a geographic entity located in Clay County, Illinois. As of official census estimates, it has a reported population of 597. The land area covers 36.20 sq mi. ^[1]

Demographics & Population

Demographic Metric	Estimate / Count	Margin of Error	Survey Period / Source
Total Population (2025 PEP Estimate)	597	—	2025 / Census
Median Age	60.3 yrs	±13.7	2020-2024 / Census ACS 5-Year 2024
Total Households	325	±94	2020-2024 / Census ACS 5-Year 2024

Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric	Estimate / Value	Margin of Error
Total Housing Units	375	±118
Occupied Housing Units	325	±94
Vacant Housing Units	50	±57
Median Home Value	$188,600	±$56,122
Median Gross Rent	Suppressed	—

Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric	Estimate / Value	Margin of Error
Median Household Income	$61,964	±$12,157
Per Capita Income	$35,478	±$8,712
Poverty Rate	18.4%	±19%
Population Below Poverty Level	128	±138
Unemployment Rate	0%	±5.2%
Civilian Labor Force, Employed	248	±112
Broadband Internet Rate	89.5%	±13.6%

Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
TOWNSHIP OF BLAIR GUS Population: 596 (2024) ID: 162798	Township	Official Local Government	Contact: SUPERVISOR 2154 BLAIR TOWNSHIP LN, LOUISVILLE IL 62858-2369
COUNTY OF CLAY GUS Population: 12,821 (2024) ID: 162125	County	Official County Government	Contact: CLERK COUNTY COURTHOUSE, LOUISVILLE IL 62858

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides

Institution	Type	Grades	Location
Altamont Grade School	Regular School Nearby	PK-08	Altamont, IL
Altamont High School	Regular School Nearby	09-12	Altamont, IL
Central Grade School	Regular School Nearby	02-05	Effingham, IL
Clay City Elem School	Regular School Nearby	PK-05	Clay City, IL
Clay City High School	Regular School Nearby	09-12	Clay City, IL
Clay City Jr High School	Regular School Nearby	06-08	Clay City, IL
Dieterich Elem School	Regular School Nearby	PK-06	Dieterich, IL
Dieterich Jr/Sr High School	Regular School Nearby	07-12	Dieterich, IL
Early Learning Center	Regular School Nearby	KG	Effingham, IL
Flora Elementary School	Regular School Nearby	PK-05	Flora, IL

Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 8 civic institutions across 2 datasets queried CMS • IPEDS • IMLS

Facility Name	Category	Relationship	Address / Location	Contact
Illinois Eastern Community Colleges - Olney Central College	College	24.7 mi away	305 North West Street, Olney, IL, 62450-2227	—
FLORA PUBLIC LIBRARY	Library	14.0 mi away	216 NORTH MAIN STREET, FLORA, IL, 62839	(618) 662-6553
EFFINGHAM PUBLIC LIBRARY	Library	17.4 mi away	200 NORTH THIRD STREET, EFFINGHAM, IL, 62401	(217) 342-2464
ALTAMONT PUBLIC LIBRARY	Library	17.8 mi away	121 WEST WASHINGTON AVENUE, ALTAMONT, IL, 62411	(618) 483-5457
KINMUNDY PUBLIC LIBRARY	Library	18.7 mi away	111 SOUTH MONROE STREET, KINMUNDY, IL, 62854	(618) 547-3250
SAINT ELMO PUBLIC LIBRARY DISTRICT	Library	20.5 mi away	311 WEST CUMBERLAND ROAD, SAINT ELMO, IL, 62458	(618) 829-5544
NEWTON PUBLIC LIBRARY DISTRICT	Library	21.3 mi away	100 SOUTH VAN BUREN STREET, NEWTON, IL, 62448	(618) 783-8141
BROWNSTOWN BRANCH LIBRARY	Library	24.6 mi away	120 EAST MAIN STREET, BROWNSTOWN, IL, 62418	(618) 427-3853

Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at FLORA 5 NW, IL US, located 11.4 miles from Blair township. Local microclimates, topography, and elevation may cause municipal conditions to differ.

Month	High (°F)	Low (°F)	Mean (°F)	Precip (in)	Snow (in)
January	40.4°	23.1°	31.8°	3.35"	3.1"
February	46.2°	26.3°	36.3°	2.60"	1.7"
March	56.8°	35.3°	46.1°	3.80"	1.4"
April	69.2°	44.8°	57.0°	4.64"	0.0"
May	77.1°	55.3°	66.2°	5.27"	0.0"
June	85.3°	63.3°	74.3°	4.84"	0.0"
July	87.7°	66.5°	77.1°	3.81"	0.0"
August	86.4°	64.5°	75.5°	3.41"	0.0"
September	81.2°	56.9°	69.0°	3.27"	0.0"
October	70.2°	46.2°	58.2°	4.26"	0.0"
November	55.5°	35.9°	45.7°	4.12"	0.4"
December	44.0°	27.2°	35.6°	2.99"	1.7"

Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery

Community Name	Classification	Distance	Population
Iola village	Village	6.0 mi	—
Louisville village	Village	7.0 mi	—
Mason town	Town	8.0 mi	—
Edgewood village	Village	8.3 mi	—
La Clede CDP	CDP	10.1 mi	—
Watson village	Village	11.0 mi	—

Sources & Data Provenance

1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 1702506392. • Official Source Dataset →
2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.

Read complete data sources, methodology, and licensing documentation →