Mason City Flag

Mason City

County:
Mason County
County Seat:
No
Area (mi²):
1.013
State:
Illinois

Mason City is a city located in Mason County, Illinois. Mason City has a 2025 population of 1,922. Mason City is currently declining at a rate of -1.49% annually and its population has decreased by -7.1% since the most recent census, which recorded a population of 2,069 in 2020.

The average household income in Mason City is $68,683 with a poverty rate of 16.81%.The median age in Mason City is 51.5 years: 50.7 years for males, and 52.4 years for females.

1.9K
Total Population
1,897
Density (mi²)
-29 -1.49%
Growth

Mason City Population

Mason City Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Mason City includes 95.99% White, and smaller percentages for Two or more races, Black or African American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White2,01095.99%
Two or more races442.1%
Black or African American401.91%

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 $43,095. Household income levels show a median of $64,250. The poverty rate stands at 16.81%.

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$88,438-
Families$80,536$83,424
Households$64,250$68,683
Non Families$39,688$49,089

$43,095

Average Income

$64,250

Median Household Income

16.81%

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)