Jefferson County, ID — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
32,234
Male
16,537
51.3%
Female
15,697
48.7%
Median Age
32.3 yrs
Avg Household Size
3.2
Foreign Born
4.3%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher15.8%
High School or Higher31.3%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
3.7%
Disability
0.0%
Non-English Home
3.9%
Married
46.1%
Jefferson County, ID has a population of 32,234 according to 2023 Census Bureau estimates. The median age is 32.3 years. The largest racial or ethnic group is White at 88.3% of the population. 15.8% of residents hold a bachelor's degree or higher. 4.3% of residents are foreign-born.