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.

Demographics

The racial composition of Mason City includes 95.99% White, and smaller percentages for Two or more races, Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	2,010	95.99%
Two or more races	44	2.1%
Black or African American	40	1.91%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Mason City Marital Status

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