Marion Flag

Marion

County Seat:
Yes
Area (mi²):
35.56
State:
Illinois

Marion is located in Williamson County, Illinois. Marion has a 2025 population of 211 . It is also the county seat of Williamson County . Marion is currently declining at a rate of 0% annually and its population has decreased by -1.4% since the most recent census, which recorded a population of 214 in 2020.

The average household income in Marion is $82,005 with a poverty rate of 2.17%. The median age in Marion is 51.7 years: 54.6 years for males, and 51 years for females. For every 100 females there are 52.6 males.

211
Total Population
6
Density (mi²)

Marion Population

Marion Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Marion includes 95.96% White, and smaller percentages for Asian and multiracial populations.

Population by Race

White (95.96%)

Two or more races (3.42%)

Asian (0.62%)

Race
Population
Percentage (of total)
White30995.96%
Two or more races113.42%
Asian20.62%

Marion Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marion's average per capita income is $44,167. Household income levels show a median of $86,250. The poverty rate stands at 2.17%.

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$115,703-
Families$115,273$100,167
Households$86,250$82,005
Non Families-$51,239

$44,167

Average Income

$86,250

Median Household Income

2.17%

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)