Mason City, IA Profile: Facts & Data


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Mason City, Iowa - Basic Facts

The City of Mason City had a population of 28,034 as of July 1, 2018. Mason City ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.

The primary coordinate point for Mason City is located at latitude 43.1536 and longitude -93.201 in Cerro Gordo County. The formal boundaries for the City of Mason City (see map below) encompass a land area of 27.79 sq. miles and a water area of 0.3 sq. miles. Cerro Gordo County is in the Central time zone (GMT -6). The elevation is 1,132 feet.

The City of Mason City (GNIS ID: 468366) has a C2 Census Class Code which indicates an active incorporated place legally coextensive with a county subdivision but treated as independent of any county subdivision. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Mason City is located within , a minor civil division (MCD) of Cerro Gordo County.

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  1. Mason City 2018 Demographic Data
  2. Growth Rates for Mason City (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Iowa Research Tools (Easy Tools & Current Data)
  3. Iowa Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Mason City, IA Data & Demographics (As of July 1, 2018)


Total Population 28,034
Population in Households 27,269
Population in Familes 20,026
Population in Group Qrtrs 765
Population Density2 1,009
Diversity Index3 26


Median Household Income $46,235
Average Household Income $61,621
Per Capita Income $27,682


Total Housing Units 13,540 (100%)
Owner Occupied HU 8,223 (60.7%)
Renter Occupied HU 4,204 (31.0%)
Vacant Housing Units 1,113 ( 8.2%)
Median Home Value $118,980
Average Home Value $143,532


Total Households 12,427
Average Household Size 2.19
Family Households 7,147
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2018 2018-2023
Population -0.02% 0.08%
Households 0.06% 0.11%
Families -0.11% 0.0%
Median Household Income   2.13%
Per Capita Income   2.27%

Mason City, IA - Peer Comparisons by Rank and Percentile

The table below compares Mason City to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 16 99th
Population Density # 294 71st
Diversity Index # 102 90th
Median Household Income # 837 17th
Per Capita Income # 602 40th

Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.

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