Mason City, Iowa Population 2024

26,430

Mason City is a city located in Cerro Gordo County Iowa. Mason City has a 2024 population of 26,430. It is also the county seat of Cerro Gordo County.Mason City is currently declining at a rate of -0.93% annually and its population has decreased by -3.07% since the most recent census, which recorded a population of 27,267 in 2020.

The average household income in Mason City is $75,095 with a poverty rate of 10.55%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Mason City is 43.1 years, 41.2 years for males, and 45.5 years for females.

Mason City Demographics

According to the most recent ACS, the racial composition of Mason City was:

  • White: 90.9%
  • Two or more races: 4.33%
  • Black or African American: 2.74%
  • Asian: 0.77%
  • Other race: 0.5%
  • Native Hawaiian or Pacific Islander: 0.44%
  • Native American: 0.32%
State
Iowa
Land Area (mi²)
27.8 sq mi
Density (mi²)
950.90/sq mi
Growth Since 2020
-3.07% (-837)
The current population of Mason City, Iowa is 26,430 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 27,267.

Mason City, Iowa Population 2024

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Mason City Metro Area Population by Year

Population by Race

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Race
Population
Percentage (of total)
White24,78990.9%
Two or more races1,1814.33%
Black or African American7462.74%
Asian2100.77%
Other race1370.5%
Native Hawaiian or Pacific Islander1200.44%
Native American880.32%
showing: 7 rows

White

Two or more races

Black or African American

Asian

Other race

Native Hawaiian or Pacific Islander

Native American

Mason City Population by Race

Mason City Population Pyramid 2024

Mason City Median Age

43.1

Total

41.2

Male

45.5

Female

Mason City Adults

There are 21,858 adults, (6,016 of whom are seniors) in Mason City.

Mason City Age Dependency

72.1

Age Dependency Ratio

38

Old Age Dependency Ratio

34.2

Child Dependency Ratio

Mason City Sex Ratio

Female13,74550.4%
Male13,52649.6%

Mason City Population by Age

Mason City Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All12,7282.0867.932.1
Non Family5,6871.1755.244.8
Married5,3152.748515
Female1,1833.0548.251.8
Male5433.0276.223.8
showing: 5 rows

2.73

Average Family Size

2.08

Average Household Size

67.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Mason City Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Mason City Educational Attainment by Sex (over 25)

Mason City Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among asian people with a rate of 100%.

The highest rate of bachelors degrees is among white people with a rate of 21.54%.

Mason City Educational Attainment by Race

All

Male

Female

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$41,930

Average Earnings

$51,275

Average Male

$34,664

Average Female

Mason City Earnings by Educational Attainment

Mason City Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Mason City Language

95.89% of Mason City residents speak only English, while 4.11% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.67% of the population.

Mason City Language

Mason City Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White23,2472,3239.99%
Hispanic1,78823513.14%
Black66510716.09%
Multiple1,150665.74%
Other1336347.37%
Native875057.47%
Islander1204235%
showing: 7 rows

10.55%

Overall Poverty Rate

8.86%

Male Poverty Rate

12.2%

Female Poverty Rate

Poverty in Mason City

The race most likely to be in poverty in Mason City is Native, with 57.47% below the poverty level.

The race least likely to be in poverty in Mason City is Multiple, with 5.74% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.54%. Among those working part-time, it was 17.46%, and for those that did not work, the poverty rate was 16.43%.

Mason City Poverty

rate

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Rate
Poverty
Less Than 9th Grade11.52%
High School11.09%
Some College8.28%
Bachelors or Greater4.98%
showing: 4 rows

Mason City Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed29.87%
Female Unemployed22.51%
Female Employed7.76%
Male Employed4.96%
showing: 4 rows

Mason City Poverty Rate by Employment Status and Sex

Mason City Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Mason City Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

49.5%

Overall Marriage Rate

49.5%

Male Marriage Rate

49.5%

Female Marriage Rate

Mason City Married by Age and Sex

male

female

Mason City Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Mason City Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Mason City Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,724

Number of Veterans

1,600

Male Veterans

124

Female Veterans

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Mason City Veterans by War

count

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Mason City Veterans by Age

count

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Mason City Veterans by Race

Mason City Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.36%

Veteran Poverty Rate

31.22%

Veteran Disability Rate

Mason City Veterans by Education

LaborForceParticipation

65.6%

Labor Force Participation

63.3%

Employment Rate

3.4%

Unemployment Rate

Mason City Employment by Age

LaborForceParticipation

Mason City Employment by Race

LaborForceParticipation

Mason City Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

73.32%

Born in Mason City

97.58%

Native Born

2.42%

Foreign Born

1.23%

Non Citizen

1.19%

Naturalized

Place of Birth

97.58% of Mason City residents were born in the United States, with 73.32% having been born in Iowa. 1.23% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Mason City Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202925,195-247-0.97%
202825,442-247-0.96%
202725,689-247-0.95%
202625,936-247-0.94%
202526,183-247-0.93%
202426,430-247-0.93%
202326,677-247-0.92%
202226,924-247-0.91%
202127,171-96-0.35%
202027,2673221.2%
201926,945-120-0.44%
201827,065-293-1.07%
201727,358-49-0.18%
201627,407800.29%
201527,327-100-0.36%
201427,427-241-0.87%
201327,668-86-0.31%
201227,754-194-0.69%
201127,948-94-0.34%
201028,042-1,130-3.87%
200029,1721320.45%
199029,040-1,104-3.66%
198030,144-235-0.77%
197030,379-263-0.86%
196030,6422,6629.51%
195027,9809003.32%
194027,0803,77616.2%
193023,3043,23916.14%
192020,0658,83578.67%
191011,2304,48466.47%
19006,7462,73968.36%
18904,0071,49759.64%
18802,510
showing: 33 rows

Mason City Population by Year