Johannisburg township Flag

Johannisburg township

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

Johannisburg township is located in Washington County, Illinois. Johannisburg township has a 2026 population of 508. Johannisburg township is currently growing at a rate of 0.4% annually and its population has decreased by 0% since the most recent census, which recorded a population of 508 in 2020.

The median household income in Johannisburg township is $91,964 with a poverty rate of 0%. The median age in Johannisburg township is 45.8 years: 45.7 years for males, and 58.1 years for females. For every 100 females there are 112.5 males.

508
Total Population
14
Density (mi²)
2 0.4%
Growth

Johannisburg township Population

Johannisburg township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202650820.4%
202550620.4%
202450420.4%
2023502-4-0.79%
202250600%
2021506-2-0.39%
2020508-1-0.2%
2019487-4-0.81%
201849130.61%
2017488-7-1.41%
2016495-4-0.8%
2015499-3-0.6%
201450210.2%
2013501-8-1.57%
201250930.59%
2011506-5-0.98%
2010510-1-0.2%

Median Age

Overall: 45.8 years
Female: 58.1 years
Male: 45.7 years

Johannisburg township Adults

There are 322 adults, (74 of whom are seniors) in Johannisburg township.

Sex Ratio

Female: 184 (47.1%)
Male: 207 (52.9%)

Demographics

The racial composition of Johannisburg township includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White391100%
Race
Population ↓
Percentage (of total)
White391100%

Johannisburg township Marital Status

Economics and Income Statistics

Johannisburg township 's average per capita income is $50,074. Household income levels show a median of $91,964. 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$96,458$129,947
Married Families$96,458-
Households$91,964$118,721
Non Families$49,286$47,795

$50,074

Average Income

$91,964

Median Household Income

0%

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)