Lewis County, ID Population

Overview

3,613

Total Population

49.0

Median age

51.87%

Female population %

92.8:100

Gender ratio (M:F)

60-64 years

Largest age group

85.9

Total dependency ratio

White

Largest racial group

177

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Lewis County's population is old compared to the rest of the country:

The median age in Lewis County is 49.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Lewis County's population under 18 was 23.33%, compared to the 22.51% nationwide.
Lewis County's elderly or the senior population (over 65 age) was 26.43% as compared to 16.04% nationwide.
Of the total population in Lewis County, 19.79% were under the age of 15, 12.90% aged 15 to 29, 40.88% aged 30 to 64, 24.52% aged 65 to 84, and 1.91% were 85 years of age and older.

There are 135 more females than males in Lewis County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.87% females and 48.13% males in Lewis County, ID.
The Lewis County, ID gender ratio is 92.8:100 i.e. 92.8 men to 100 women (0.928).
For male population, the largest age group is 60-64 years with a population of 205.
For the female population, the largest age group is 65-69 years with a population of 188.

Lewis County's population has become increasingly diverse:

Racial distribution of Lewis County population: 82.34% are White, 1.08% are Black or African American, 5.84% are American Indian and Alaska Native, 1.25% are Asian, 3.76% are some other race and 5.73% are multiracial.
Lewis County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 177 is Hispanic or Latino (of any race), and 3,436 (95.10% of the total population) is Non-Hispanic.
The largest racial group in Lewis County is White with a population of 2,975 (82.34% of the total population).

Lewis County's population has already reached its peak and is showing a trend of decline:

The peak population was 3,883 in the year 2017
From 2000 to 2010, Lewis County's population increased by 112 (3.02%), as compared to the national growth of 9.63%.
From 2010 to 2020, Lewis County's population decreased by 292 (7.64%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Lewis County's population was lowest in year 2020 at 3,528.