Lewis County, ID — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
3,649
Male
1,826
50.0%
Female
1,823
50.0%
Median Age
48.9 yrs
Avg Household Size
2.3
Foreign Born
1.4%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher14.6%
High School or Higher37.9%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
8.2%
Disability
0.0%
Non-English Home
6.7%
Married
47.2%
Lewis County, ID has a population of 3,649 according to 2023 Census Bureau estimates. The median age is 48.9 years. The largest racial or ethnic group is White at 83.4% of the population. 14.6% of residents hold a bachelor's degree or higher. 1.4% of residents are foreign-born.