Clay County, IA — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
16,446
Male
8,131
49.4%
Female
8,315
50.6%
Median Age
41.8 yrs
Avg Household Size
2.2
Foreign Born
1.0%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher18.0%
High School or Higher40.7%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.3%
Disability
0.0%
Non-English Home
3.5%
Married
40.9%
Clay County, IA has a population of 16,446 according to 2023 Census Bureau estimates. The median age is 41.8 years. The largest racial or ethnic group is White at 94.6% of the population. 18.0% of residents hold a bachelor's degree or higher. 1.0% of residents are foreign-born.