In 2018, Lewis County, ID had a population of 3.85k people with a median age of 48.3 and a median household income of $41,326. Between 2017 and 2018 the population of Lewis County, ID grew from 3,824 to 3,845, a 0.549% increase and its median household income grew from $40,313 to $41,326, a 2.51% increase.
The 5 largest ethnic groups in Lewis County, ID are White (Non-Hispanic) (84.2%), American Indian & Alaska Native (Non-Hispanic) (6.84%), White (Hispanic) (2.94%), Two+ (Non-Hispanic) (2.44%), and Asian (Non-Hispanic) (1.4%). 0% of the households in Lewis County, ID speak a non-English language at home as their primary language, and 99% of the residents in Lewis County, ID are U.S. citizens.
In 2018, the median property value in Lewis County, ID was $123,000, and the homeownership rate was 71.5%. Most people in Lewis County, ID drove alone to work, and the average commute time was 21.6 minutes. The average car ownership in Lewis County, ID was 2 cars per household.