Linn County, IA — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
229,463
Male
113,411
49.4%
Female
116,052
50.6%
Median Age
38.5 yrs
Avg Household Size
2.4
Foreign Born
5.3%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher23.8%
High School or Higher41.6%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
5.8%
Disability
0.0%
Non-English Home
3.2%
Married
42.0%
Linn County, IA has a population of 229,463 according to 2023 Census Bureau estimates. The median age is 38.5 years. The largest racial or ethnic group is White at 84.6% of the population. 23.8% of residents hold a bachelor's degree or higher. 5.3% of residents are foreign-born.