Mason City Flag

Mason City

County:
Mason County
County Seat:
No
Area (mi²):
35.462
State:
Illinois

Mason City is located in Mason County, Illinois. Mason City has a 2025 population of 2,167. Mason City is currently declining at a rate of -1.46% annually and its population has decreased by -6.96% since the most recent census, which recorded a population of 2,329 in 2020.

The average household income in Mason City is $76,633 with a poverty rate of 15.08%. The median age in Mason City is 52 years: 51.4 years for males, and 52.8 years for females.

2.2K
Total Population
61
Density (mi²)
-32 -1.46%
Growth

Mason City Population

Mason City Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Mason City includes 96.39% White, and smaller percentages for Two or more races, Black or African American and multiracial populations.

Population by Race

White (96.4%)

Two or more races (1.9%)

Black or African American (1.7%)

Race
Population
Percentage (of total)
White2,24396.39%
Two or more races441.89%
Black or African American401.72%

Mason City Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mason City's average per capita income is $44,519. Household income levels show a median of $69,432. The poverty rate stands at 15.08%.

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$92,153-
Families$86,250$95,518
Households$69,432$76,633
Non Families$42,083$49,090

$44,519

Average Income

$69,432

Median Household Income

15.08%

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)