Marissa township Flag

Marissa township

County Seat:
No
Area (mi²):
34.449
State:
Illinois

Marissa township is located in St. Clair County, Illinois. Marissa township has a 2026 population of 2,131. Marissa township is currently declining at a rate of -0.84% annually and its population has decreased by -5.87% since the most recent census, which recorded a population of 2,264 in 2020.

The median household income in Marissa township is $68,250 with a poverty rate of 11.48%. The median age in Marissa township is 42 years: 49.1 years for males, and 38 years for females. For every 100 females there are 85.2 males.

2.1K
Total Population
62
Density (mi²)
-18 -0.84%
Growth

Marissa township Population

Marissa township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20262,131-18-0.84%
20252,149-18-0.83%
20242,167-18-0.82%
20232,185-22-1%
20222,207-31-1.39%
20212,238-26-1.15%
20202,264-6-0.26%
20192,260-27-1.18%
20182,287-19-0.82%
20172,306-13-0.56%
20162,319-17-0.73%
20152,336-26-1.1%
20142,362-23-0.96%
20132,385-28-1.16%
20122,413-29-1.19%
20112,442-26-1.05%
20102,467-1-0.04%

Median Age

Overall: 42 years
Female: 38 years
Male: 49.1 years

Marissa township Adults

There are 1,482 adults, (368 of whom are seniors) in Marissa township.

Sex Ratio

Female: 991 (54%)
Male: 844 (46%)

Demographics

The racial composition of Marissa township includes 89.7% White, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,64689.7%
Two or more races18410.03%
Native American50.27%
Race
Population ↓
Percentage (of total)
Two or more races382.07%
White231.25%
Race
Population ↓
Percentage (of total)
White1,62388.45%
Two or more races1467.96%
Native American50.27%

Marissa township Marital Status

Economics and Income Statistics

Marissa township 's average per capita income is $48,141. Household income levels show a median of $68,250. The poverty rate stands at 11.48%.

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$106,136-
Families$88,167$95,424
Households$68,250$78,604
Non Families-$49,087

$48,141

Average Income

$68,250

Median Household Income

11.48%

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)