Clayton / Marsh Creek Detention Facility
Search the Sheriff In-Custody Locator or call (925) 646-5700 and confirm this is Marsh Creek, not Martinez or West County. Visiting is Saturday and Sunday 1 p.m. and 2 p.m. only, scheduled by the inmate, at 12000 Marsh Creek Road. Pigeonly mail code 1119. This is a remote campus — there is no food, fuel, or transit at the gate.
Contra Costa County · California
Custody lookup
Marsh Creek Detention Facility inmate search.
Confirm the person is in this jail before you drive, mail a letter, or send money.
Contra Costa Sheriff In-Custody Locator
Official In-Custody Locator (JailTracker CONTRA_COSTA_COUNTY_CA). Confirm Marsh Creek Detention Facility. Official facility page: one of three primary Sheriff jails; generally minimum security; sentenced, lesser crime classifications; about 70 average population, maximum housing 154; ~32 acres of a 162-acre parcel at the base of Mount Diablo; often called “the farm.” Programs include GED, viticulture, wood shop, agriculture, cement, and general construction. Martinez is 901 Court Street. West County is 5555 Giant Highway.
Open inmate search ↗VINELink California
The Sheriff’s Inmate Information pages point families to the In-Custody Locator, not a VINE button. Phone 1-877-411-5588.
Register with VINE ↗Before you leave home
Three things to confirm before the trip.
Social visits are scheduled only by the inmate. Marsh Creek visiting is Saturday and Sunday 1 p.m. and 2 p.m. only. Confirm the person is here — Martinez and West County have different hours.
- 01Confirm Marsh Creek
Search the In-Custody Locator or call (925) 646-5700.
If the person is at Martinez, use 901 Court Street. If West County or WRTH, use 5555 Giant Highway. If Juvenile Hall, use 202 Glacier Drive.
- 02Weekend only
Saturday and Sunday 1 p.m. and 2 p.m.
Official Marsh Creek page: those two slots. The inmate schedules. Arrive 30 minutes early with accepted photo ID. There is no weekday visiting list on the facility page.
- 03Remote campus
12000 Marsh Creek Road, Clayton — no food, fuel, or transit at the gate.
Eat and fuel before you leave town. Bring accepted ID only. Leave phones and bags in the car. No contact.
01 / Visiting
Marsh Creek Detention Facility visiting hours.
Official Marsh Creek Detention Facility and Visiting an Inmate pages (Wayback captured 2026-01/2026-06, checked 2026-09-12): Saturday and Sunday 1 p.m. and 2 p.m. Social visits scheduled only by the inmate. Same county visiting rules (ID, dress, no contact, 30 minutes early). If the locator shows Martinez or West County, do not come here. Weekday visiting is not on the published Marsh Creek list.
Call the jail (925) 646-5700Visiting location
Contra Costa Sheriff Marsh Creek Detention Facility, 12000 Marsh Creek Road, Clayton, CA 94517.
Service animals allowed under county visiting rules. Call (925) 646-5700 — this is a rural campus.
Frequency and group size
- Scheduled by the inmate. Weekend slots only on the facility page.
- The published slots are 1 p.m. and 2 p.m. Saturday and Sunday. Arrive 30 minutes early.
- County visiting rules apply (max visitors set by the facility; under 18 with parent/guardian). Call (925) 646-5700 if you need the Marsh Creek visitor cap confirmed for the day.
- 12000 Marsh Creek Road, Clayton, CA 94517. Not 901 Court Street, not 5555 Giant Highway, not 202 Glacier Drive.
In-person visiting times by housing module
The only published visiting days are Saturday and Sunday. Find the housing module first, then the day.
No remote-video vendor is named on the Sheriff visiting HTML.
Social visiting — Saturday and Sunday only, scheduled by the inmate
- Sun · Sat 1:00 p.m. 2:00 p.m.
Do not assume
These details are not published.
Ask the jail before setting out. Jail411 will not guess at a rule that could cause a missed visit.
- Weekday visiting hours (facility page lists Saturday and Sunday only)
- Telephone / PIN-debit vendor name
- Remote-video visiting vendor
- A lobby deposit kiosk at this campus (kiosks are published for Martinez and West County)
- Property / commissary pickup hours after release
Phone calls
Marsh Creek phones and visiting weekend in-person.
In-person social visits are Saturday and Sunday 1 p.m. and 2 p.m., scheduled by the inmate. The Sheriff pages do not name a telephone PIN vendor or a remote-video vendor.
- 01Confirm first
This is a long drive for the wrong building.
Locator or (925) 646-5700. Martinez and West County are not this road.
Inmate mail
Marsh Creek Detention Facility inmate mail address.
Use the inmate-mail address below. Include the person’s name and booking number, and add your full return address.
Mailing address
Inmate Name – Booking NumberMarsh Creek Detention Facility – 1119PO Box 96777Las Vegas, NV 89193Do not send ordinary letters to the Clayton street. Do not use Martinez 1117 or West County 1118 if the locator shows this building.
- Non-privileged letters via Pigeonly with code 1119, booked name, and booking number.
- Privileged/legal mail, money orders/cashier’s checks/government checks, and publisher magazines/newspapers/periodicals/soft-cover books to 12000 Marsh Creek Road, Clayton, CA 94517.
- Ordinary letters to 12000 Marsh Creek Road (non-privileged mail is Pigeonly Las Vegas)
- Code 1117 (Martinez) or 1118 (West County / WRTH) for someone housed here
- Youth mail (Juvenile Hall is 202 Glacier Drive)
Letters: Inmate Name – Booking Number / Marsh Creek Detention Facility – 1119 / PO Box 96777 / Las Vegas, NV 89193. Legal / money order / publisher: 12000 Marsh Creek Road, Clayton, CA 94517.
Postage when someone has no money: Same Pigeonly scan-and-print process as Martinez.
Money and commissary
How to send money to Marsh Creek Detention Facility.
The published deposit route is SmartDeposit / Access Corrections (deposits); MyCarePack (commissary). Confirm the person is still housed here and keep the booking number ready before depositing.
- 01
Money orders and cashier’s checks payable to Office of the Sheriff, inmate name and booking number on the front, mailed to 12000 Marsh Creek Road, Clayton, CA 94517.
- 02
Credit/debit: kiosks are published for Martinez and West County lobbies — Marsh Creek is not named as a kiosk site. Use smartdeposit.com or mail a money order.
- 03
Commissary gifts: mycarepack.com.
Release and property
Bail, property, and commissary pickup
Search first — Arnason Justice Center is not this jail
Confirm custody on the In-Custody Locator or (925) 646-5700. Cash or a licensed bond. Criminal clerk (925) 608-1000. East County court is Arnason Justice Center, 1000 Center Drive, Pittsburg — not this jail. CAF 1011 Las Juntas Street, (925) 313-4260, is sentenced alternatives. Holds can block release. An ICE detainer alone is not a lawful California hold (Gov. Code § 7284.6).
Call (925) 646-5700
Call (925) 646-5700.
Call (925) 646-5700
Call (925) 646-5700.
After booking
Court, a lawyer, probation, and parole.
Court, counsel, and probation are separate from the jail. State parole is a different agency. This is the process a family actually has to walk—not a directory of private bondsmen or attorneys.
1000 Center Drive
Public portal: kiosk-cacontracosta.tylertech.cloud/Portal/. Case assignment depends on the charging court. Official Arnason Justice Center (checked 2026-09-12): building Monday–Friday 8:00 a.m.–5:00 p.m. Filing clerk 8:00 a.m.–4:00 p.m. Phones 8:00 a.m.–3:00 p.m. East County (Antioch, Bay Point, Brentwood, Byron, Discovery Bay, Oakley, Pittsburg).
1000 Center Drive is the Pittsburg courthouse — not Marsh Creek visiting.
800 Ferry Street
Ask the judge at the first appearance for a Public Defender if you cannot afford an attorney.
Official CCPD Main Branch: 800 Ferry Street, Martinez, (925) 608-9600. TTY 711. info@pd.cccounty.us.
Probation is not parole
A probation hold can block release after bail. Martinez office (925) 313-4000.
Youth housing is John A. Davis Juvenile Hall, 202 Glacier Drive — not this adult jail. Orin Allen in Byron is not on the live Probation institution list.
Concord parole — 1957 Parkside Drive
CDCR lists Berkeley/Oakland/East Bay and Contra Costa parole at 1957 Parkside Drive #100, Concord, (925) 602-0838. State parole is not county Probation.
Superior Court locations
East county criminal / traffic / family.
Official page ↗Main criminal / civil in Martinez.
Official page ↗Public Defender offices
District Attorney
Fax (925) 655-1434. Not Marsh Creek visiting.
Official page ↗Probation offices
Not Marsh Creek visiting.
Official page ↗Nearby CDCR parole offices, if the paperwork names one
Do not treat these as the assigned office unless the release instructions say so.
- Berkeley/Oakland/East Bay and Contra Costa Parole Office 1957 Parkside Drive #100, Concord, CA 94519 · (925) 602-0838 · Google Maps ↗
05 / Who to call
Marsh Creek Detention Facility phone numbers.
For visiting, housing, bail, property, mail, or deposit questions, use the custody information line first.
12000 Marsh Creek Road. Weekend visiting.
If the locator shows 901 Court Street.
If the locator shows Richmond / Giant Highway.
800 Ferry Street.
202 Glacier Drive. Not this jail.
When you need to act
Search, pay, or read the county’s own pages.
Marsh Creek Detention Facility · Clayton · Updated 2026-09-12