Mountain township Flag

Mountain township

County:
Saline County
County Seat:
No
Area (mi²):
42.002
State:
Illinois

Mountain township is located in Saline County, Illinois. Mountain township has a 2025 population of 344. Mountain township is currently declining at a rate of -0.86% annually and its population has decreased by -5.75% since the most recent census, which recorded a population of 365 in 2020.

The average household income in Mountain township is $149,339 with a poverty rate of 0%. The median age in Mountain township is 45.7 years: 54.6 years for males, and 40.4 years for females.

344
Total Population
8
Density (mi²)
-3 -0.86%
Growth

Mountain township Population

Mountain township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Mountain 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)
White307100%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%
Two or more races00%

Mountain township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mountain township's average per capita income is $71,094. Household income levels show a median of $116,250. 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
Non Families$250,001$243,170
Households$116,250$149,339
Families$115,579$100,974
Married Families$115,579-

$71,094

Average Income

$116,250

Median Household Income

0%

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)