Assumption Flag

Assumption

County Seat:
No
Area (mi²):
42.847
State:
Illinois

Assumption is located in Christian County, Illinois. Assumption has a 2025 population of 1,271. Assumption is currently declining at a rate of -0.31% annually and its population has decreased by -2.83% since the most recent census, which recorded a population of 1,308 in 2020.

The average household income in Assumption is $55,305 with a poverty rate of 12.1%. The median age in Assumption is 38.6 years: 48 years for males, and 35.4 years for females.

1.3K
Total Population
30
Density (mi²)
-4 -0.31%
Growth

Assumption Population

Assumption Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Assumption includes 87.62% White, and smaller percentages for Black or African American, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

White (87.6%)

Two or more races (10.0%)

Black or African American (2.1%)

Native Hawaiian or Pacific Islander (0.2%)

Native American (0.1%)

Race
Population
Percentage (of total)
White1,18987.62%
Two or more races1359.95%
Black or African American292.14%
Native Hawaiian or Pacific Islander30.22%
Native American10.07%

Assumption Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Assumption's average per capita income is $49,318. Household income levels show a median of $47,625. The poverty rate stands at 12.1%.

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$81,607-
Families$69,375$77,244
Households$47,625$55,305
Non Families$33,889$40,188

$49,318

Average Income

$47,625

Median Household Income

12.1%

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)