Mason City, IL demographics:
population, income, and more

Total population
2,159
3.1% year-over-year change
Median household income
$66,524/yr
3.5% year-over-year change
Housing units
1,155
2.8% year-over-year change

Mason City population

How many people live in Mason City

Mason City is home to 2,159 residents, according to the most recent Census data. Gender-wise, 48.5% of Mason City locals are male, and 51.5% are female.

Total population
2,159
3.1% year-over-year change
Gender ratio
Male
48.5%
1,048
Female
51.5%
1,111
Value Percent YoY change
Male 1,048 48.5% 9.6%
Female 1,111 51.5% -2.4%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Mason City is 50, with the population distributed as follows: about 12.5% are children under 15, then 13.7% are in the 15 to 24 age group. Adults between 25 and 44 make up 20.6% of the population, while another 28.9% fall into the 45 to 64 bracket. Finally, around 24.4% are 65 or older.

Median age
49.8
Age breakdown
Under 15
12.5%
15 to 24
13.7%
25 to 44
20.6%
45 to 64
28.9%
Over 65
24.4%
Value Percent YoY change
Under 15 269 12.5% -5.9%
15 to 24 295 13.7% 30.5%
25 to 44 445 20.6% 1.4%
45 to 64 623 28.9% 8.0%
Over 65 527 24.4% -6.9%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Mason City, 99.4% of the population are US-born citizens, while 0.6% have gained naturalized citizenship. There’s also a share of 2.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
99.4%
Non-U.S.-born citizens
0.6%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 2,146 99.4% 2.5%
Non-U.S.-born citizens 13 0.6% N/A
Racial breakdown
White
95.5%
Black or African American
0.8%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
2.8%
Other
0.8%
Value Percent
White 2,062 95.5%
Black or African American 18 0.8%
Two or more races 61 2.8%
Other 18 0.8%

Households in Mason City

A peek inside Mason City households

Mason City has 1,054 households, with an average of 2 members in each. Of these, 52.9% are families, while the remaining 47.1% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,054
4.5% year-over-year change
Average people per household
2
Non-family households
496
Family households
558
Value Percent YoY change
Non-family households 496 47.1% 9.0%
Family households 558 52.9% 0.7%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Mason City

The housing landscape of Mason City

Mason City's housing consists of 1,155 units, with 90.2% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 0.4% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 3.8% of the housing landscape.

Housing units
1,155
2.8% year-over-year change
Housing types
Value Percent
1 unit, detached 1,042 90.2%
1 unit, attached 4 0.4%
3 or 4 units 6 0.5%
5 to 9 units 50 4.3%
10 to 19 units 5 0.4%
50 or more units 4 0.4%
Mobile home 44 3.8%
Homes built since 2020
0
% year-over-year change

The age of buildings in Mason City

In Mason City, the median construction year is 1951. About 44.8% of homes were built before the 1940s, with another 4.1% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 518 44.8% 11.9%
Built between 1940 and 1949 47 4.1% -25.4%
Built between 1950 and 1959 181 15.7% -4.2%
Built between 1960 and 1969 135 11.7% 15.4%
Built between 1970 and 1979 129 11.2% -24.6%
Built between 1980 and 1989 48 4.2% 26.3%
Built between 1990 and 1999 63 5.4% 5.0%
Built between 2000 and 2009 19 1.6% 90.0%
Built between 2010 and 2019 15 1.3% 15.4%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Mason City occupancy rates

Out of the 1,054 occupied housing units in Mason City, 78.3% are owner-occupied, while 21.7% are lived in by tenants. Meanwhile, 8.7% of all homes on the local market sit vacant.

Occupied housing units
1,054
4.5% year-over-year change
Occupancy breakdown
Renter occupied
229
Owner occupied
825
Value Percent YoY
change
Renter occupied 229 21.7% 0.4%
Owner occupied 825 78.3% 5.6%
Unoccupied housing units
8.7%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Mason City housing costs

Housing costs in Mason City come to a median of $765 per month, while tenants specifically pay a median gross rent of $767.

Median housing costs per month
$765/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Mason City
$767/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Mason City

Mason City education at a glance

About 42.4% of the population in Mason City went to high school, while 26.9% pursued college studies. Another 7.9% earned an associate degree and 13.5% hold a bachelor’s. Meanwhile, 5.4% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 73 4% 10.6%
High school diploma 777 42.4% 9.4%
College diploma 493 26.9% 9.6%
Associate degree 144 7.9% -14.8%
Bachelor's degree 248 13.5% 6.9%
Graduate degree 98 5.4% 2.1%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Mason City

How much people earn in Mason City

The average annual household income in Mason City was $70,486 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.6% change from the previous year. At the same time, the median income stood at $66,524, reflecting a +3.5% shift over the same period.

Average household income in Mason City
$70,486/year
2.6% year-over-year change
Median household income in Mason City
$66,524/year
3.5% year-over-year change

Mason City income by age

In Mason City, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $81,587. Those with someone between 45 and 64 in charge, often well established professionally, earn $77,083 overall. Overall, 83.1% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $81,587 -14.3%
45 - 64 $77,083 42.0%
Over 65 $50,221 3.5%
Above poverty level
1,725
Below poverty level
350
Value Percent YoY
change
Above poverty level 1,725 83.1% 3.0%
Below poverty level 350 16.9% 3.2%

Employment in Mason City

Workforce and job types in Mason City

The job market in Mason City is powered by 972 working residents, spread across a range of industries and roles. 75.2% of the working population are employed in professional or administrative positions, while 24.8% are in hands-on or service-based jobs. Also, 5.2% run their own businesses, 65.1% are employed by private companies, and 18.5% work in the public sector.

Workforce demographics

Working population
972
10.8% year-over-year change
White collar
731
Blue collar
241
Value Percent YoY change
White collar 731 75.2% 9.9%
Blue collar 241 24.8% 13.7%
Employer type
Self employees
5.2%
Private companies
65.1%
Governmental workers
18.5%
Not for profit companies
11.1%
Value Percent YoY change
Self employees 51 5.2% -44.6%
Private companies 633 65.1% 13.6%
Governmental workers 180 18.5% 10.4%
Not for profit companies 108 11.1% 66.2%
Unemployment rate
4.2%
10.3% year-over-year change

Available workforce

The unemployment rate in Mason City stands at 4.2%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Mason City

How people get around in Mason City

Means of transportation
Value Percent YoY change
Car 823 86.4% 6.1%
Bus or trolleybus 14 1.5% 40.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Mason City by zipcode?

Zipcode Population Number of households Median income Average income
62664 2,922 1,316 $70,509 $80,135

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FAQs about Mason City demographics 

What is the total population of Mason City?

Mason City has a total population of 2,159 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +3.1% compared to a year ago.

What is the gender ratio in Mason City?

The gender ratio in Mason City is as follows:
  • 48.5% males (1,048 residents)
  • 51.5% females (1,111 residents)

What is the median age in Mason City?

The median age in Mason City is 49.8.

What is the age distribution of the population in Mason City?

The age distribution in Mason City is as follows:
  • Under 15: 12.5% (269 residents)
  • Ages 15-24: 13.7% (295 residents)
  • Ages 25-44: 20.6% (445 residents)
  • Ages 45-64: 28.9% (623 residents)
  • Over 65: 24.4% (527 residents)

What is the racial and ethnic makeup of Mason City?

The racial and ethnic makeup of Mason City is as follows:
  • White: 95.5% (2,062 residents)
  • Black or African American: 0.8% (18 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 2.8% (61 residents)
  • Other: 0.8% (18 residents)

What percentage of the population in Mason City are U.S.-born citizens?

U.S.-born citizens represent 99.4% of the population in Mason City.

How many housing units are there in Mason City?

There are 1,155 housing units in Mason City, reflecting a +2.8% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Mason City and what is the average household size?

Mason City has a total of 1,054 households, with an average of 2 people in each.

What is the median household income in Mason City?

Mason City has a median household income of $66,524, representing a +3.5% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Mason City?

The employment rate is 95.8% in Mason City, with a workforce of 972 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 75.2% (731 residents)
  • Blue-collar workers: 24.8% (241 residents)

Places of employment:
  • Self-employed: 5.2% (51 residents)
  • Private companies: 65.1% (633 residents)
  • Governmental workers: 18.5% (180 residents)
  • Not-for-profit companies: 11.1% (108 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025