Mason City, Iowa Population 2020

26,975
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Mason City is a city located in Iowa. With a 2020 population of 26,975, it is the 17th largest city in Iowa and the 1419th largest city in the United States. Mason City is currently declining at a rate of -0.22% annually and its population has decreased by -3.93% since the most recent census, which recorded a population of 28,079 in 2010. Mason City reached it's highest population of 30,642 in 1960. Spanning over 28 miles, Mason City has a population density of 971 people per square mile.

The average household income in Mason City is $63,515 with a poverty rate of 12.81%. The median rental costs in recent years comes to $708 per month, and the median house value is $110,200. The median age in Mason City is 42.2 years, 39.9 years for males, and 44 years for females. For every 100 females there are 92.9 males.

Mason City Demographics

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

  • White: 92.92%
  • Black or African American: 2.41%
  • Two or more races: 2.13%
  • Other race: 1.05%
  • Asian: 0.88%
  • Native American: 0.61%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Mason City, Iowa is 26,975, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 27,093.The last official US Census in 2010 recorded the population at 28,079.

Mason City, Iowa Population 2020

2019 and 2020 population is estimated by projecting the raw 2018 numbers.

Year Total Population Growth Annual Growth Rate
202049,384-358-0.72%
201949,742-358-0.72%
201850,100-358-0.71%
201750,458-100-0.20%
201650,558730.14%
201550,485-278-0.55%
201450,763-253-0.50%
201351,016-177-0.35%
201251,193-333-0.65%
201151,526-153-0.30%
201051,6790.00%

Population by Race

Race Population Percentage
White25,37692.92%
Black or African American6572.41%
Two or More Races5832.13%
Some Other Race2881.05%
Asian2390.88%
American Indian and Alaska Native1660.61%
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Mason City Population Pyramid 2020

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Mason City Median Age

42.2


Total

39.9


Male

44


Female

Mason City Adults

There are 21,608 adults, (5,263 of whom are seniors) in Mason City.

Mason City Age Dependency

67.1

Age Dependency Ratio

32.2

Old Age Dependency Ratio

34.9

Child Dependency Ratio

Mason City Sex Ratio

Female

14,156

51.84%

Male

13,153

48.16%

Mason City Households and Families

Mason City Renter vs Owner Occupied by Household Type

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Mason City Household Types

Type Owner Renter
Married89.2%10.8%
All64.5%35.5%
Male49.9%50.1%
Non Family49.4%50.6%
Female42.9%57.1%

64.5%

Rate of Home Ownership

Type Count Average Size Owned
All12,3702.1364.5
Non Family5,3611.1549.4
Married4,9072.8789.2
Female1,4182.8542.9
Male6843.0949.9

2.78

Average Family Size

2.13

Average Household Size

8.2%

Unmarried (Opposite Sex)

0.3%

Unmarried (Same Sex)

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Mason City Education

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Education Attained Count Percentage
Less Than 9th Grade4162.18%
9th to 12th Grade1,0885.71%
High School Graduate5,91731.08%
Some College4,50023.63%
Associates Degree3,13316.45%
Bachelors Degree2,66914.02%
Graduate Degree1,3176.92%
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Mason City Educational Attainment by Race

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Name Total High School Bachelors
White17,44616,4243,798
Hispanic965567115
Black2551817
Multiple Races22922330
Other Race1895920
Asian17617638
Native American1468110

The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among white people with a rate of 21.77%.

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Name Average Male Female
Overall$37,359$44,751$31,024
Less Than High School$22,900$29,232$15,461
High School Grad$32,428$35,795$27,859
Some College$37,557$47,689$30,413
Bachelors Degree$47,853$58,586$38,729
Graduate Degree$61,396$69,444$56,700

$37,359

Average Earnings

$44,751

Average Male

$31,024

Average Female

Mason City Language

Mason City Language by Age

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Mason City Language

95.94% of Mason City residents speak only English, while 4.06% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.86% of the population.

Mason City Poverty

Mason City Poverty by Race

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Name Total In Poverty Poverty Rate
White23,5592,71211.51%
Black59833255.52%
Hispanic1,69832619.20%
Native1669054.22%
Multiple5496511.84%
Other2702910.74%

12.81%

Overall Poverty Rate

10.31%

Male Poverty Rate

15.13%

Female Poverty Rate

Poverty in Mason City

The race most likely to be in poverty in Mason City is Black, with 55.52% below the poverty level.

The race least likely to be in poverty in Mason City is Other, with 10.74% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.31%. Among those working part-time, it was 22.93%, and for those that did not work, the poverty rate was 18.12%.

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Name Poverty
Less Than High School21.79%
High School14.87%
Some College10.50%
Bachelors or Greater4.06%
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Name Poverty
Female Unemployed36.36%
Male Unemployed33.95%
Female Employed8.40%
Male Employed5.79%

Mason City Income

Mason City Income by Household Type

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Name Median Mean
Households$49,656$63,515
Families$66,274$78,126
Married Families$81,613-
Non Families$31,501$40,445
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Mason City Marital Status

Mason City Marital Status

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Marriage Rates

45.7%

Overall Marriage Rate

46.4%

Male Marriage Rate

45.1%

Female Marriage Rate

Mason City Married by Age and Sex

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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 55-64.

Mason City Marital Status by Race

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Mason City Veterans

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1,900

Number of Veterans

1,852

Male Veterans

48

Female Veterans

War Veterans
Vietnam860
First Gulf War384
Korea218
Second Gulf War165
World War II67
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Age Group Veterans
65 to 74555
75+553
35 to 54395
55 to 64358
18 to 3439
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Name Veterans % of Total
White1,8729.20%
Hispanic857.69%
2 or More176.03%
Black71.72%
Indian42.74%

Mason City Veterans by Education

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8.80%

Veteran Poverty Rate

25.42%

Veteran Disability Rate

Mason City Employment Status

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65.1%

Labor Force Participation

61.7%

Employment Rate

5.2%

Unemployment Rate

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Origin of Non-Citizens

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

Origin of Naturalized Citizens

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74.51%

Born in Iowa

96.88%

Native Born

3.12%

Foreign Born

1.72%

Non Citizen

1.40%

Naturalized

Place of Birth

96.88% of Mason City residents were born in the United States, with 74.51% having been born in Iowa. 1.72% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
202026,975-59-0.22%
201927,034-59-0.22%
201827,093-251-0.92%
201727,344-59-0.22%
201627,403850.31%
201527,318-103-0.38%
201427,421-249-0.90%
201327,670-85-0.31%
201227,755-196-0.70%
201127,951-98-0.35%
201028,049-1,123-0.39%
200029,1721320.05%
199029,040-1,104-0.37%
198030,144-235-0.08%
197030,379-263-0.09%
196030,6422,6620.91%
195027,9809000.33%
194027,0803,7761.51%
193023,3043,2391.51%
192020,0658,8355.98%
191011,2304,4845.23%
19006,7462,7395.35%
18904,0071,4974.79%
18802,5100.00%