In 2021, Jefferson County, ID had a population of 30.4k people with a median age of 31.9 and a median household income of $69,097. Between 2020 and 2021 the population of Jefferson County, ID grew from 29,238 to 30,427, a 4.07% increase and its median household income grew from $65,577 to $69,097, a 5.37% increase.
The 5 largest ethnic groups in Jefferson County, ID are White (Non-Hispanic) (86.1%), Other (Hispanic) (4.49%), Two+ (Hispanic) (3.05%), White (Hispanic) (3%), and Two+ (Non-Hispanic) (1.84%).
None of the households in Jefferson County, ID reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
97.4% of the residents in Jefferson County, ID are U.S. citizens.
In 2021, the median property value in Jefferson County, ID was $245,100, and the homeownership rate was 82.4%.
Most people in Jefferson County, ID drove alone to work, and the average commute time was 23.2 minutes. The average car ownership in Jefferson County, ID was 2 cars per household.