Ada County, ID — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
508,052
Male
255,975
50.4%
Female
252,077
49.6%
Median Age
38.3 yrs
Avg Household Size
2.5
Foreign Born
6.0%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher30.2%
High School or Higher43.6%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.2%
Disability
0.0%
Non-English Home
3.4%
Married
44.6%
Ada County, ID has a population of 508,052 according to 2023 Census Bureau estimates. The median age is 38.3 years. The largest racial or ethnic group is White at 84.8% of the population. 30.2% of residents hold a bachelor's degree or higher. 6.0% of residents are foreign-born.