Johannisburg township

County:: Washington County
County Seat:: No
Area (mi²):: 36.047
State:: Illinois

Johannisburg township is located in Washington County, Illinois. Johannisburg township has a 2025 population of 493. Johannisburg township is currently declining at a rate of -0.8% annually and its population has decreased by -2.95% since the most recent census, which recorded a population of 508 in 2020.

The average household income in Johannisburg township is $110,387 with a poverty rate of 0%. The median age in Johannisburg township is 38.5 years: 45.3 years for males, and 36.4 years for females.

Demographics

The racial composition of Johannisburg township includes 100% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race, Two or more races and multiracial populations.

Population by Race

White

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Two or more races

Race	Population	Percentage (of total)
White	451	100%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%
Two or more races	0	0%

Johannisburg township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Johannisburg township's average per capita income is $46,929. Household income levels show a median of $89,143. The poverty rate stands at 0%.

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
Families	$102,625	$131,522
Married Families	$102,625	-
Households	$89,143	$110,387
Non Families	$24,531	$28,559

$46,929

Average Income

$89,143

Median Household Income

0%

Poverty Rate