A Fairfield man has been identified who was found Wednesday after an apparent assault in Jefferson County, according to the ...

A homicide is under investigation in Jefferson County. Police say a man received a deadly blunt force injury during an ...

A Jefferson County Sheriff's Office spokesperson told FOX31's Alliyah Sims that in recent memory, this is the lowest vacancy ...

Jefferson County man pleads guilty to possessing a pipe bomb, possibly facing 20 years in prison and a $250,000 fine.

The Jefferson County Sheriff’s Office is conducting an investigation after a man was killed Wednesday. JCSO officers say the man, whose identity remains ...

Jefferson County sheriff’s deputies were dispatched to a mobile home in the 5300 block of Ruby Carson Boulevard.

The Jefferson County Sheriff’s Office said several people are in custody after a warrant was served on a southern Jefferson ...

We take every school threat with the utmost seriousness because our children’s safety demands nothing less,” Undersheriff Tim ...

A man was killed when he was hit by a freight train in west Jefferson County Sunday night. The crash happened at 10:45 p.m.

JEFFERSON COUNTY, Colo. — A shelter-in-place was lifted for a Jefferson County neighborhood after deputies executed a warrant that resulted in the arrests of seven people. About 6 a.m. Tuesday ...

JEFFERSON COUNTY, Colo. (KDVR) —The Jefferson County Sheriff’s Office hopes an extra $5,000 will help with recruitment efforts. It’s a part of a new initiative to address staffing shortages.