Blair township Flag

Blair township

County:
Clay County
County Seat:
No
Area (mi²):
36.195
State:
Illinois

Blair township is located in Clay County, Illinois. Blair township has a 2025 population of 596. Blair township is currently declining at a rate of -0.5% annually and its population has decreased by -3.56% since the most recent census, which recorded a population of 618 in 2020.

The average household income in Blair township is $73,513 with a poverty rate of 19.87%. The median age in Blair township is 60.8 years: 61.8 years for males, and 56.2 years for females.

596
Total Population
16
Density (mi²)
-3 -0.5%
Growth

Blair township Population

Blair township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Blair township includes 95.62% White, and smaller percentages for Native American, Black or African American, Asian, Native Hawaiian or Pacific Islander, other race, Two or more races and multiracial populations.

Population by Race

White

Native American

Black or African American

Asian

Native Hawaiian or Pacific Islander

Other race

Two or more races

Race
Population
Percentage (of total)
White63395.62%
Native American182.72%
Black or African American111.66%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%
Two or more races00%

Blair township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Blair township's average per capita income is $48,833. Household income levels show a median of $63,295. The poverty rate stands at 19.87%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Non Families$65,833$57,019
Married Families$64,545-
Households$63,295$73,513
Families$61,938$78,207

$48,833

Average Income

$63,295

Median Household Income

19.87%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)