Belknap Flag

Belknap

County:
Johnson County
County Seat:
No
Area (mi²):
1.057
State:
Illinois

Belknap is a village located in Johnson County, Illinois. Belknap has a 2025 population of 86 . Belknap is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 86 in 2020.

The average household income in Belknap is $71,489 with a poverty rate of 7.69%. The median age in Belknap is 54.3 years: 54.2 years for males, and 56.1 years for females. For every 100 females there are 81.4 males.

86
Total Population
81
Density (mi²)

Belknap Population

Belknap Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Belknap includes 94.87% White, and smaller percentages for and multiracial populations.

Population by Race

White (94.87%)

Two or more races (5.13%)

Race
Population
Percentage (of total)
White7494.87%
Two or more races45.13%

Belknap Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Belknap's average per capita income is $33,250. Household income levels show a median of $0. The poverty rate stands at 7.69%.

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$150,625-
Families$150,250$111,956
Non Families$30,250$26,082
Households-$71,489

$33,250

Average Income

$0

Median Household Income

7.69%

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)