Sonoma County Main Adult Detention

The Main Adult Detention Facility (Madf) Was Opened In 1991. This “New Generation” Facility Was Based On A “Direct Supervision” Design, As Opposed To The “Linear” Design Of The County’S Earlier Jails. Originally Designed To Hold Close To 500 Inmates, The Facility Quickly Reached It’S Housing Capacity And An Expansion Was Opened In 1997 To Provide An Additional 290 Beds. The Facility Is A Medium/Maximum Security Facility, Housing Both Pre-Trial And Sentenced Inmates.

Sonoma County Main Adult Detention Contact Details

Address: 2777 Ventura Avenue, Sonoma, CA
City: Santa Rosa
Zip: 95403
Phone 1: 707-565-1400
Type: County Jail

Mailing to Inmates and Staff

Inmate Visiting Days and Hours

Day of Week Hours
Monday 7:30 Am To 9:00 Pm
Tuesday 7:30 Am To 9:00 Pm
Wednesday 7:30 Am To 9:00 Pm
Thursday 7:30 Am To 9:00 Pm
Friday 7:30 Am To 9:00 Pm
Saturday 7:30 Am To 2:30 Pm
Sunday 7:30 Am To 2:30 Pm