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 and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White307100%

Mountain township Marital Status

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

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)