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 2026 population of 584. Blair township is currently declining at a rate of -1.02% annually and its population has decreased by -5.96% since the most recent census, which recorded a population of 621 in 2020.

The median household income in Blair township is $61,964 with a poverty rate of 18.44%. The median age in Blair township is 60.3 years: 63.3 years for males, and 56.6 years for females. For every 100 females there are 82.1 males.

584
Total Population
16
Density (mi²)
-6 -1.02%
Growth

Blair township Population

Blair township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026584-6-1.02%
2025590-6-1.01%
2024596-6-1%
2023602-5-0.82%
2022607-8-1.3%
2021615-6-0.97%
2020621-1-0.16%
2019608-6-0.98%
2018614-1-0.16%
2017615-4-0.65%
2016619-5-0.8%
2015624-3-0.48%
2014627-5-0.79%
2013632-8-1.25%
2012640-1-0.16%
201164150.79%
201064710.15%

Median Age

Overall: 60.3 years
Female: 56.6 years
Male: 63.3 years

Blair township Adults

There are 618 adults, (312 of whom are seniors) in Blair township.

Sex Ratio

Female: 392 (54.9%)
Male: 322 (45.1%)

Demographics

The racial composition of Blair township includes 98.46% White, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White70398.46%
Native American111.54%
Race
Population ↓
Percentage (of total)
White70398.46%
Native American111.54%

Blair township Marital Status

Economics and Income Statistics

Blair township 's average per capita income is $46,645. Household income levels show a median of $61,964. The poverty rate stands at 18.44%.

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
Married Families$62,421-
Households$61,964$75,178
Families$61,687$82,580
Non Families-$52,033

$46,645

Average Income

$61,964

Median Household Income

18.44%

Poverty Rate

Nearby Cities

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)