Demographics in Mason City, IA
Population, age, race, ethnicity, and household statistics — 2023 ACS Data
Where is Mason City?
Loading map…
Population
Source: U.S. Census Bureau ACS (2023)Total Population
27,135
Male
13,259
48.9%
Female
13,876
51.1%
Median Age
43.0
Race & Ethnicity
Source: U.S. Census Bureau ACS (2023)White88.4%
Black3.3%
Hispanic6.5%
Asian1.2%
Two or More5.3%
Other0.8%
Education & Household
Source: U.S. Census Bureau ACS (2023)Bachelor's or Higher
15.3%
High School or Higher
42.6%
Foreign Born
2.5%
Veterans
6.0%
Married
42.4%
Avg Household Size
2.1
Marital Status by Age
Source: U.S. Census Bureau ACS (2023)Mason City, IA has a population of 27,135 with a median age of 43.0. The racial makeup is 88.4% White, 6.5% Hispanic, 3.3% Black, 1.2% Asian. About 15.3% of residents hold a bachelor's degree or higher. The foreign-born population is 2.5%.