In 2018, Jefferson County, MO had a population of 223k people with a median age of 39 and a median household income of $63,030. Between 2017 and 2018 the population of Jefferson County, MO grew from 222,639 to 223,302, a 0.298% increase and its median household income grew from $60,765 to $63,030, a 3.73% increase.
The 5 largest ethnic groups in Jefferson County, MO are White (Non-Hispanic) (94.5%), Two+ (Non-Hispanic) (1.55%), White (Hispanic) (1.52%), Black or African American (Non-Hispanic) (0.906%), and Asian (Non-Hispanic) (0.737%). NaNk% of the people in Jefferson County, MO speak a non-English language, and 99.3% are U.S. citizens.
The largest universities in Jefferson County, MO are Jefferson College (837 degrees awarded in 2017).
The median property value in Jefferson County, MO is $158,100, and the homeownership rate is 79.7%. Most people in Jefferson County, MO commute by Drove Alone, and the average commute time is 30.1 minutes. The average car ownership in Jefferson County, MO is 2 cars per household.
Jefferson County, MO borders Monroe County, IL, Franklin County, MO, Ste. Genevieve County, MO, St. Francois County, MO, Washington County, MO, and St. Louis County, MO.