In 2020, Jefferson County, CO had a population of 579k people with a median age of 40.2 and a median household income of $87,793. Between 2019 and 2020 the population of Jefferson County, CO grew from 574,798 to 578,795, a 0.695% increase and its median household income grew from $82,986 to $87,793, a 5.79% increase.
The 5 largest ethnic groups in Jefferson County, CO are White (Non-Hispanic) (77.7%), White (Hispanic) (10.7%), Asian (Non-Hispanic) (2.76%), Two+ (Non-Hispanic) (2.4%), and Two+ (Hispanic) (2.35%).
None of the households in Jefferson County, CO 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.
97.1% of the residents in Jefferson County, CO are U.S. citizens.
The largest universities in Jefferson County, CO are Red Rocks Community College (2,541 degrees awarded in 2020), Colorado School of Mines (1,590 degrees), and Colorado Christian University (1,335 degrees).
In 2020, the median property value in Jefferson County, CO was $433,100, and the homeownership rate was 71.7%. Most people in Jefferson County, CO drove alone to work, and the average commute time was 27.8 minutes. The average car ownership in Jefferson County, CO was 2 cars per household.